MODEL G0773
12" X 27" COMBO LATHE/MILL
OWNER'S MANUAL
(For models manufactured since 12/14)
COPYRIGHT © MARCH, 2015 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
# WKBB17019 PRINTED IN CHINA
V1.03.15
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Table of Contents
INTRODUCTION............................................... 2
SECTION 5: MILL OPERATIONS.................. 51
Operation Overview..................................... 51
Removing Compound Rest.......................... 52
Headstock Movement.................................. 52
Table Travel................................................. 53
Installing/Removing Tooling......................... 54
Spindle Speed.............................................. 56
Machine Description ...................................... 2
Contact Info.................................................... 2
Manual Accuracy ........................................... 2
Identification................................................... 3
Controls & Components................................. 4
G0773 Data Sheet......................................... 7
SECTION 1: SAFETY..................................... 10
Safety Instructions for Machinery ................ 10
Additional Safety for Metal Lathes............... 12
Additional Safety for Mills ............................ 13
Additional Lathe Chuck Safety..................... 14
SECTION 6: ACCESSORIES......................... 57
SECTION 7: MAINTENANCE......................... 61
Schedule...................................................... 61
Cleaning/Protecting...................................... 61
Lubrication ................................................... 62
Machine Storage.......................................... 66
SECTION 2: POWER SUPPLY...................... 15
SECTION 3: SETUP ....................................... 17
Setup Overview............................................ 17
Unpacking.................................................... 17
Needed for Setup......................................... 17
Inventory ...................................................... 18
Cleanup........................................................ 19
Site Considerations...................................... 20
Lifting & Placing........................................... 21
Mounting & Leveling .................................... 22
Assembly ..................................................... 23
Test Run ...................................................... 24
Spindle Break-In .......................................... 26
Recommended Adjustments........................ 26
SECTION 8: SERVICE ................................... 67
Troubleshooting ........................................... 67
Tensioning & Replacing V-Belts.................. 70
Adjusting Backlash....................................... 71
Adjusting Leadscrew End Play.................... 71
Adjusting Gibs.............................................. 72
Adjusting Half Nut........................................ 73
SECTION 8: WIRING...................................... 74
Wiring Safety Instructions............................ 74
Wiring Overview........................................... 75
Wiring Diagram............................................ 76
Wiring Photos............................................... 77
SECTION 10: PARTS..................................... 78
Accessories.................................................. 78
Lathe Bed..................................................... 79
Tailstock....................................................... 82
Tool Post...................................................... 83
Cross Slide................................................... 84
Apron ........................................................... 86
Apron Parts List ........................................... 87
Gearbox ....................................................... 88
Change Gears.............................................. 90
Motor & Drive............................................... 92
Mill................................................................ 94
Labels & Cosmetics..................................... 97
SECTION 4: LATHE OPERATIONS .............. 27
Operation Overview..................................... 27
Chuck Mounting........................................... 28
Installation & Removal Device..................... 28
Chuck Installation......................................... 28
Chuck Removal............................................ 30
Scroll Chuck Clamping ................................ 30
Changing Jaw Set........................................ 31
Tailstock....................................................... 32
Dead Centers............................................... 36
Compound Rest........................................... 38
Four-Way Tool Post..................................... 38
Manual Feed................................................ 40
Spindle Speed.............................................. 41
Understanding Gear Charts......................... 42
Power Feed.................................................. 44
End Gears.................................................... 46
Threading..................................................... 49
SECTION 11: APPENDIX............................... 98
Threading & Feeding Chart ......................... 98
Thread Dial Chart ........................................ 98
WARRANTY & RETURNS ........................... 101
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INTRODUCTION
Machine Description
Manual Accuracy
We are proud to provide a high-quality owner’s
manual with your new machine!
The Model G0773 12" x 27" Combo Lathe/Mill
features a lathe with 735 Watt (1 HP) 110V motor,
6-speed variable-speed controls, 6" 3-jaw chuck,
a 4-way turret toolpost, and a full length splash
guard.
We made every effort to be exact with the instruc-
tions, specifications, drawings, and photographs
contained inside. Sometimes we make mistakes,
but our policy of continuous improvement also
means that sometimes the machine you receive
will be slightly different than what is shown in
the manual.
The mill section features a 141⁄2" swing, electronic
variable speed control, fine and course spindle
downfeed with adjustable depth stop, R8 taper,
and a drilling capacity of 1⁄2" in cast-iron and steel.
If you find this to be the case, and the difference
between the manual and machine leaves you
confused about a procedure, check our website
for an updated version. We post current manuals
and manual updates for free on our website at
www.grizzly.com.
Both section are equipped with emergency stops,
chuck guards, and eye shields for safety.
Contact Info
Alternatively, you can call our Technical Support
for help. Before calling, please write down the
Manufacture Date and Serial Number stamped
into the machine ID label (see below). This infor-
mation helps us determine if updated documenta-
tion is available for your machine.
We stand behind our machines. If you have
any questions or need help, use the information
below to contact us. Before contacting, please get
the serial number and manufacture date of your
machine. This will help us help you faster.
Grizzly Technical Support
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Email: [email protected]
Manufacture Date
Serial Number
We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: [email protected]
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Identification
Study the names and locations of the controls and components shown below to familiarize yourself with the
machine and better understand the terms used throughout this manual.
Variable-
Speed
Dial
Fine Downfeed
Handwheel
3-Jaw
Chuck
Lathe Power
Light
Coarse
Downfeed
Handwheel
Lathe/Mill
Selector
Switch
Spindle
Direction
Switch
Vertical Travel
Lock Lever
4-Way Tool
Post
Gearbox
Dials
On/Off Switch w/
Emergency Stop
Button
Feed
Selection
Lever
Cross Slide
Handwheel
Tailstock
Carriage
Handwheel
Compound Rest
Handwheel
Half Nut
Lever
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
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Carriage
Controls &
Components
H
G
F
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
I
Refer to Figures 1–5 and the following descrip-
tions to become familiar with the basic controls of
this machine.
Headstock
J
K
A
L
M
Figure 2. Carriage controls.
B
C
D
F. Thread Dial: Indicates when to engage half
nut during threading operations.
G. 4-Way Tool Post: Holds up to four cutting
tools at once that can be individually indexed
to workpiece and quickly moved into position
when needed.
E
H. Compound Rest Handwheel: Moves tool
toward and away from workpiece at preset
compound angle.
Figure 1. Headstock controls.
A. Lathe/Mill Selector Switch: Used to select
I. Cross Slide Table: Supports compound
between lathe mode (1) or mill mode (2).
rest for lathe operations, and workpieces for
3
milling operations. Includes (2) ⁄8" T-slots
B. Spindle Direction Switch: Selects spindle
spaced 3.55" (90mm) on center, for mounting
milling vises or other fixtures.
rotation direction.
C. Lathe Power Indicator Light: Illuminates
when Lathe/Mill Selector Switch is set to
lathe mode.
J. Feed Selection Lever: Selects carriage or
cross slide for power feed.
K. Half Nut Lever: Engages/disengages half
D. ON/OFF Switch w/Emergency Stop Button:
When pressed, cuts power to motor and con-
trol panel. To reset, press front tab, lift switch
cover, and press green ON button. Cover
must be unlatched for machine to run.
nut for threading operations.
L. Cross Slide Handwheel: Moves cross slide
toward and away from workpiece.
M. Carriage Handwheel: Manually moves car-
E. Gearbox Dials: Control rate of carriage
power feed, as indicated in threading and
feeding charts.
riage left or right along bedway.
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Tailstock
End Gears, Pulleys, V-Belts
P
O
T
U
N
Q
V
R
S
Figure 3. Tailstock controls.
Figure 4. End gears, V-belts, and pulleys.
N. Tailstock Quill: Equipped with an MT#2
taper to hold centers or other tooling; features
a scale on the side for use as a depth guide.
T. Timing Belt: Used for controlling spindle
speed, power feed speeds, and threading.
U. V-Belt: Transfers power from motor to idler
and spindle pulleys. The position of the V-belt
on idler and spindle pulleys controls spindle
speed.
O. Tailstock Quill Lock Lever: Secures quill
position so it doesn't shift during operations.
P. Tailstock Lock Lever: Secures tailstock
position along bedway.
V. End Gears: The configuration of the end
gears controls the leadscrew speed for power
feeding, and inch and metric threading.
Q. Graduated Dial: Indicates quill movement in
increments of 0.001", with one full handwheel
revolution equaling 0.04" of quill travel.
R. Quill Handwheel: Moves quill toward or
Serious personal injury could occur if
you connect the machine to power before
completing the setup process. DO NOT
connect power until instructed to do so later
in this manual.
away from spindle.
S. Tailstock Offset Screws: Adjust tailstock
offset left or right from spindle centerline
(1 of 2).
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W. ON/OFF Switch w/Emergency Stop Button:
When pressed, cuts power to motor and con-
trol panel. To reset, press front tab, lift switch
cover, and press green ON button. Cover
must be unlatched for machine to run.
Milling Headstock
Z
Y
X
X. Mill Fault Light: Illuminates if mill motor is
overloaded.
W
Y. Fine Vertical Handwheel: Provides preci-
sion control of vertical headstock travel dur-
ing setups.
AA
AE
Z. Coarse Vertical Handwheel: Raises and
lowers headstock for Z-axis spindle position-
ing during setups.
AB
AA. Vertical Travel Lock Lever: Locks head-
stock position along column.
AB. Mill Depth Stop: Limits downward move-
AD
Figure 5. Milling headstock controls.
AC
ment of mill headstock.
AC. Drill Chuck: Holds drill bit during milling
operations.
AD. Variable-Speed Spindle Control Dial:
Provides variable control of spindle speed
between 100–2500 RPM.
AE. Mill Power Indicator Light: Illuminates when
Lathe/Mill Selector Switch (see Page 4) is set
to milling mode.
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MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0773 12" X 27" COMBO LATHE/MILL
Product Dimensions:
Weight.............................................................................................................................................................. 546 lbs.
Width (side-to-side) x Depth (front-to-back) x Height........................................................................... 59 x 30 x 33 in.
Footprint (Length x Width)............................................................................................................................ 59 x 30 in.
Shipping Dimensions:
Type.......................................................................................................................................................... Wood Crate
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 656 lbs.
Length x Width x Height....................................................................................................................... 61 x 27 x 38 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 110V, Single-Phase, 60 Hz
Full-Load Current Rating..................................................................................................................................... 11.6A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length................................................................................................................................................. 6 ft.
Power Cord Gauge......................................................................................................................................... 16 AWG
Plug Included.......................................................................................................................................................... Yes
Included Plug Type.................................................................................................................................... NEMA 5-15
Switch Type....................................................................................................... ON/OFF Push Button w/Safety Cover
Motors:
Mill Spindle
Type.............................................................................................................................................. Brushless DC
Horsepower................................................................................................................................ 5/8 HP (500W)
Phase............................................................................................................................................ Single-Phase
Amps........................................................................................................................................................... 2.8A
Speed................................................................................................................................................ 5000 RPM
Power Transfer ................................................................................................................................. Gear Drive
Bearings........................................................................................................... Shielded & Permanently Sealed
Lathe Spindle
Type................................................................................................................. TEFC Capacitor-Start Induction
Horsepower................................................................................................................................... 1 HP (735W)
Phase............................................................................................................................................ Single-Phase
Amps......................................................................................................................................................... 11.6A
Speed................................................................................................................................................ 1700 RPM
Power Transfer .................................................................................................................................. Belt Drive
Bearings........................................................................................................... Shielded & Permanently Sealed
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Main Specifications:
Lathe Info
Swing Over Bed......................................................................................................................................... 12 in.
Distance Between Centers.................................................................................................................. 27-1/2 in.
Swing Over Cross Slide......................................................................................................................... 7-3/8 in.
Swing Over Saddle................................................................................................................................ 4-1/2 in.
Maximum Tool Bit Size............................................................................................................................. 1/2 in.
Compound Travel........................................................................................................................................ 3 in.
Carriage Travel.................................................................................................................................... 23-5/8 in.
Cross Slide Travel....................................................................................................................................... 6 in.
Spindle Bore............................................................................................................................. 1-1/2 in. (38mm)
Spindle Taper............................................................................................................................................ MT#5
Number Of Spindle Speeds.............................................................................................................................. 6
Spindle Speeds....................................................................................... 150, 240, 470, 720, 1130, 2100 RPM
Spindle Type............................................................................................................................................... D1-4
Tailstock Quill Travel............................................................................................................................. 3-1/8 in.
Tailstock Taper.......................................................................................................................................... MT#3
Number of Longitudinal Feeds....................................................................................................................... 15
Range of Longitudinal Feeds................................................................................................. 0.0016 – 0.015 in.
Number of Cross Feeds................................................................................................................................. 15
Range of Cross Feeds......................................................................................................... 0.0008 – 0.0061 in.
Number of Inch Threads................................................................................................................................. 21
Range of Inch Threads...................................................................................................................... 5 – 72 TPI
Number of Metric Threads.............................................................................................................................. 12
Range of Metric Threads.................................................................................................................. 0.5 – 4 mm
Mill Info
Mill Taper...................................................................................................................................................... R-8
Mill Spindle Travel................................................................................................................................. 7-1/8 in.
Mill Swing............................................................................................................................................ 14-1/2 in.
Distance Spindle To Work Table............................................................................................................... 10 in.
Distance Spindle To Bed........................................................................................................................... 12 in.
Distance Spindle To Center Line........................................................................................................... 6-1/2 in.
Mill Head Vertical Travel...................................................................................................................... 7-1/16 in.
Maximum Tool Bit Size............................................................................................................................. 5/8 in.
Drilling Capacity For Steel........................................................................................................................ 1/2 in.
Drilling Capacity For Cast Iron.................................................................................................................. 1/2 in.
Table Size Length.................................................................................................................................. 9-1/2 in.
Table Size Width................................................................................................................................... 4-1/2 in.
Table Size Thickness............................................................................................................................ 1-3/8 in.
Drawbar Diameter................................................................................................................................... 7/16 in.
Drawbar TPI............................................................................................................................................. 20 TPI
Drawbar Length..................................................................................................................................... 6-3/4 in.
Number of Mill Drill Speeds................................................................................................................... Variable
Mill Speed Range.................................................................................................................... 100 – 2500 RPM
Construction
Bed...................................................................................................................... Induction-Hardened Cast Iron
Headstock............................................................................................................................................ Cast Iron
Body..................................................................................................................................................... Cast Iron
End Gears.................................................................................................................................................. Steel
Paint Type/Finish...................................................................................................................................... Epoxy
Other
Bed Width.............................................................................................................................................. 6-1/8 in.
Carriage Leadscrew Diameter.................................................................................................................. 3/4 in.
Carriage Leadscrew TPI............................................................................................................................ 8 TPI
Carriage Leadscrew Length.............................................................................................................. 42-1/16 in.
Cross Slide Leadscrew Diameter........................................................................................................... 9/16 in.
Cross Slide Leadscrew TPI...................................................................................................................... 14 TPI
Cross Slide Leadscrew Length............................................................................................................ 13-1/2 in.
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Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time .............................................................................................................. 1 Hour
Serial Number Location .................................................................................................................................. ID Label
Features:
Full-length splash guard
Emergency stop on lathe and mill
Headstock and mill eyeshields
Thread dial indicator
T-slots in cross slide
Handwheel dials graduated in inches
Electronic variable-speed control on mill
Fine and coarse mill spindle downfeed with adjustable depth stop
Column tilts 45 degrees left and right
Chuck guard with safety switch on lathe and mill
Accessories Included:
6" 3-jaw scroll chuck
4-way turret tool post
MT#3 and MT#5 dead centers
Bottle for oil
Accessories Recommended:
T10255 Mini Lathe Tool Kit
T25250 58 pc Clamping Kit 5/16"-18, 3/8" T-Slot
G1070 Live Center Set - Taper: MT3
H7661 Quick Vise
T10253 2" Mini Self Centering Vise with Swivel Base
T10254 2" Mini Self Centering Vise
H5931 4 pc. Center Drill Set 82°
H5930 4 pc. Center Drill Set 60°
T23962 Moly-D Machine and Way Oil - ISO 68, 5 Gallon
T23963 Moly-D Multi-Function Machine Oil-ISO 32, 5 Gallon
SB1365 Way Oil for Lathes
T23964 Armor Plate with Moly-D Multi-purpose Grease, 14.5 oz.
H7616 High Pressure Oil Can, 5 Oz. With Plastic Nozzle
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SECTION 1: SAFETY
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of impor-
tance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
This symbol is used to alert the user to useful information about
proper operation of the machine.
NOTICE
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand this ELECTRICAL EQUIPMENT INJURY RISKS. You
owner’s manual BEFORE using machine.
can be shocked, burned, or killed by touching live
electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
TRAINED OPERATORS ONLY. Untrained oper-
ators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, dis-
connect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make workshop kid proof!
DISCONNECT POWER FIRST. Always discon-
nect machine from power supply BEFORE making
adjustments, changingtooling, orservicingmachine.
This prevents an injury risk from unintended startup
or contact with live electrical components.
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machin-
ery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
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WEARING PROPER APPAREL. Do not wear FORCING MACHINERY. Do not force machine.
clothing, apparel or jewelry that can become
entangled in moving parts. Always tie back or
cover long hair. Wear non-slip footwear to avoid
accidental slips, which could cause loss of work-
piece control.
It will do the job safer and better at the rate for
which it was designed.
NEVER STAND ON MACHINE. Serious injury
may occur if machine is tipped or if the cutting
tool is unintentionally contacted.
HAZARDOUS DUST. Dust created while using
machinery may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece material,
and always wear a NIOSH-approved respirator to
reduce your risk.
STABLE MACHINE. Unexpected movement dur-
ing operation greatly increases risk of injury or
loss of control. Before starting, verify machine is
stable and mobile base (if used) is locked.
USE RECOMMENDED ACCESSORIES. Consult
this owner’s manual or the manufacturer for rec-
ommended accessories. Using improper acces-
sories will increase the risk of serious injury.
HEARING PROTECTION. Always wear hear-
ing protection when operating or observing loud
machinery. Extended exposure to this noise
without hearing protection can cause permanent
hearing loss.
UNATTENDED OPERATION. To reduce the
risk of accidental injury, turn machine OFF and
ensure all moving parts completely stop before
walking away. Never leave machine running
while unattended.
REMOVE ADJUSTING TOOLS. Tools left on
machinery can become dangerous projectiles
upon startup. Never leave chuck keys, wrenches,
or any other tools on machine. Always verify
removal before starting!
MAINTAIN WITH CARE. Follow all maintenance
instructions and lubrication schedules to keep
machine in good working condition. A machine
that is improperly maintained could malfunction,
leading to serious personal injury or death.
USE CORRECT TOOL FOR THE JOB. Only use
this tool for its intended purpose—do not force
it or an attachment to do a job for which it was
not designed. Never make unapproved modifica-
tions—modifying tool or using it differently than
intended may result in malfunction or mechanical
failure that can lead to personal injury or death!
CHECK DAMAGED PARTS. Regularly inspect
machine for any condition that may affect safe
operation. Immediately repair or replace damaged
or mis-adjusted parts before operating machine.
AWKWARD POSITIONS. Keep proper footing
and balance at all times when operating machine.
Do not overreach! Avoid awkward hand positions
that make workpiece control difficult or increase
the risk of accidental injury.
MAINTAIN POWER CORDS. When disconnect-
ing cord-connected machines from power, grab
and pull the plug—NOT the cord. Pulling the cord
may damage the wires inside. Do not handle
cord/plug with wet hands. Avoid cord damage by
keeping it away from heated surfaces, high traffic
areas, harsh chemicals, and wet/damp locations.
CHILDREN & BYSTANDERS. Keep children and
bystanders at a safe distance from the work area.
Stop using machine if they become a distraction.
EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intend-
ed operation, stop using the machine! Contact our
Technical Support at (570) 546-9663.
GUARDS & COVERS. Guards and covers reduce
accidental contact with moving parts or flying
debris. Make sure they are properly installed,
undamaged, and working correctly.
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Additional Safety for Metal Lathes
Serious injury or death can occur from getting entangled in, crushed between, or struck by
rotating parts on a lathe! Unsecured tools or workpieces that fly loose from rotating objects
can also strike nearby operators with deadly force. To minimize the risk of getting hurt or killed,
anyone operating this machine MUST completely heed the hazards and warnings below.
CLOTHING, JEWELRY & LONG HAIR. Tie back SECURE WORKPIECE. An improperly secured
long hair, remove jewelry, and do not wear loose workpiece can fly off spindle with deadly force.
clothing or gloves. These can easily get caught on Make sure workpiece is properly secured before
rotating parts and pull you into lathe.
starting the lathe.
ROTATING PARTS. Always keep hands and body CHUCKS. Chucks can be heavy and difficult to
at a safe distance from rotating parts—especially hold. During installation and removal, protect your
those with projecting surfaces. Never hold any- hands and precision bed ways by using a chuck
thing against rotating workpiece, such as emery cradle or piece of plywood over the bed ways. Use
cloth, that can pull you into lathe.
lifting equipment, as necessary, for large chucks.
GUARDING. Guards and covers protect against STOPPING SPINDLE. Always allow spindle to
entanglement or flying objects. Always ensure they completely stop on its own, or use a brake, if
are properly installed while machine is running.
provided. Never put hands or another object on a
spinning workpiece to make it stop faster.
ADJUSTMENT TOOLS. Remove all chuck keys,
wrenches, and adjustment tools before turning CRASHING. A serious explosion of metal parts
lathe ON. A tool left on the lathe can become a can occur if cutting tool or other lathe component
deadly projectile when spindle is started.
hits rotating chuck or a projecting part of work-
piece. Resulting metal fragments can strike nearby
SAFE CLEARANCES. Before starting spindle, people and lathe will be seriously damaged. To
verify workpiece has adequate clearance by hand- reduce risk of crashing, ALWAYS release automat-
rotating it through its entire range of motion.
ic feeds after use, NEVER leave lathe unattended,
and CHECK all clearances before starting lathe.
NEW SETUPS. Test each new setup by starting
spindle rotation at the lowest speed and standing COOLANT SAFETY. Coolant can become very
to the side of the lathe until workpiece reaches full toxic through prolonged use and aging. To mini-
speed and you can verify safe rotation.
mize toxicity, change coolant regularly. When
using, position nozzle properly to avoid splashing
SPINDLE SPEEDS. Using spindle speeds that are operator or causing a slipping hazard on floor.
too fast for the workpiece or clamping equipment
can cause rotating parts to come loose and strike TOOL SELECTION. Cutting with incorrect or dull
nearby people with deadly force. Always use slow tooling increases risk of injury from broken or dis-
spindle speeds with large or non-concentric work- lodged components, or as a result of extra force
pieces. Never exceed rated RPM of the chuck.
required for operation. Always use sharp tooling
that is right for the job.
LONG STOCK SAFETY. Long stock can whip
violently if not properly supported. Always support SANDING/POLISHING. To reduce risk of entan-
any stock that extends from the chuck/headstock glement, never wrap emery cloth around rotating
more than three times its own diameter.
workpiece. Instead, use emery cloth with the aid
of a tool or backing board.
CLEARING CHIPS. Metal chips can be razor
sharp. Avoid clearing them by hand or with a rag. MEASURING WORKPIECE. To reduce risk of
Use a brush or vacuum instead.
entanglement, never measure rotating workpieces.
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Additional Safety for Mills
The primary risks of operating a Mill are as follows: You can be seriously injured or killed by
getting clothing, jewelry, or long hair entangled with rotating cutter. You can be severely cut
or have fingers amputated from contact with the rotating cutter. You can be blinded or struck
by broken cutting tools, metal chips, workpieces, or adjustment tools thrown from the rotating
spindle with great force. To reduce your risk of serious injury when operating this machine,
completely heed and understand the following:
UNDERSTAND ALL CONTROLS. Make sure you SECURE WORKPIECE TO TABLE. Clamp
understand the function and proper use of all con- workpiece to table or secure in a vise mounted to
trols before starting. This will help you avoid mak- table, so workpiece cannot unexpectedly shift or
ing mistakes that result in serious injury.
spin during operation. NEVER hold workpiece by
hand during operation.
WEAR FACE SHIELD. Always wear a face shield
in addition to safety glasses. This provides more CLEAN MACHINE SAFELY. Metal chips or shav -
complete protection for your face than safety ings can be razor sharp. DO NOT clear chips
glasses alone.
by hand or compressed air that can force chips
farther into machine—use a brush or vacuum
REMOVE CHUCK KEY & SPINDLE TOOLS. instead. Never clear chips while spindle is turning.
Always remove chuck key, drawbar wrench, and
other tools used on the spindle immediately after PROPERLY MAINTAIN MACHINE. Keep machine
use. This will prevent them from being thrown by in proper working condition to help ensure that it
the spindle upon startup.
functions safely and all guards and other compo-
nents work as intended. Perform routine inspec-
PROPERLY SECURE CUTTER. Firmly secure tions and all necessary maintenance. Never oper-
cutting tool or drill bit so it does not fly out of spin- ate machine with damaged or worn parts that can
dle during operation.
break or result in unexpected movement during
operation.
USE CORRECT SPINDLE SPEED. Follow rec-
ommended speeds and feeds for each size and DISCONNECT POWER FIRST. To reduce risk of
type of cutting tool. This helps avoid tool breakage electrocution or injury from unexpected startup,
during operation and ensures best cutting results. make sure mill/drill is turned OFF, disconnected
from power, and all moving parts have come to
INSPECT CUTTING TOOL. Inspect cutting tools a complete stop before changing cutting tools or
for sharpness, chips, or cracks before each use. starting any inspection, adjustment, or mainte-
Replace dull, chipped, or cracked cutting tools nance procedure.
immediately.
POWER DISRUPTION. In the event of a local
ALLOW SPINDLE TO STOP. To minimize your power outage during operation, turn spindle switch
risk of entanglement, always allow spindle to stop OFF to avoid a possible sudden startup once
on its own. DO NOT stop spindle using your hand power is restored.
or any other object.
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Additional Lathe Chuck Safety
ENTANGLEMENT. Entanglement with a rotat- CHUCK CAPACITY. Avoid exceeding the capacity
ing chuck can lead to death, amputation, broken of the chuck by clamping an oversized workpiece.
bones, or other serious injury. Never attempt to If the workpiece is too large to safely clamp with
slow or stop the lathe chuck by hand, and always the chuck, use a faceplate or a larger chuck if pos-
roll up long sleeves, tie back long hair, and remove sible. Otherwise, the workpiece could be thrown
any jewelry or loose apparel BEFORE operating.
from the lathe during operation, resulting in serious
impact injury or death.
CHUCK SPEED RATING. Excessive spindle
speeds greatly increase the risk of the workpiece CLAMPING FORCE. Inadequate clamping force
or chuck being thrown from the machine with can lead to the workpiece being thrown from the
deadly force. Never use spindle speeds faster than chuck and striking the operator or bystanders.
the chuck RPM rating or the safe limits of your Maximum clamping force is achieved when the
workpiece.
chuck is properly maintained and lubricated, all
jaws are fully engaged with the workpiece, and
USING CORRECT EQUIPMENT. Many workpiec- the maximum chuck clamping diameter is not
es can only be safely turned in a lathe if additional exceeded.
support equipment, such as a tailstock or steady/
follow rest, is used. If the operation is too hazard- PROPER MAINTENANCE. All chucks must be
ous to be completed with the lathe or existing properly maintained and lubricated to achieve
equipment, the operator must have enough experi- maximum clamping force and withstand the rigors
ence to know when to use a different machine or of centrifugal force. To reduce the risk of a thrown
find a safer way.
workpiece, follow all maintenance intervals and
instructions in this document.
TRAINED OPERATORS ONLY. Using a chuck
incorrectly can result in workpieces coming loose DISCONNECT POWER. Serious entanglement or
at high speeds and striking the operator or bystand- impact injuries could occur if the lathe is started
ers with deadly force. To reduce the risk of this haz- while you are adjusting, servicing, or installing the
ard, read and understand this document and seek chuck. Always disconnect the lathe from power
additional training from an experienced chuck user before performing these procedures.
before using a chuck.
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SECTION 2: POWER SUPPLY
Availability
Before installing the machine, consider the avail-
ability and proximity of the required power supply
circuit. If an existing circuit does not meet the
requirements for this machine, a new circuit must
be installed. To minimize the risk of electrocution,
fire, or equipment damage, installation work and
electrical wiring must be done by an electrician or
qualified service personnel in accordance with all
applicable codes and standards.
Serious injury could occur if you connect
the machine to power before completing the
setup process. DO NOT connect to power
until instructed later in this manual.
110V Circuit Requirements
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
Nominal Voltage .................... 110V, 115V, 120V
Cycle..........................................................60 Hz
Phase........................................... Single-Phase
Power Supply Circuit ......................... 15 Amps
Electrocution, fire, or
equipment damage may
occur if machine is not
correctly grounded and
connected to the power
supply.
A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power sup-
ply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)
Full-Load Current Rating
The full-load current rating is the amperage a
machine draws at 100% of the rated output power.
On machines with multiple motors, this is the
amperage drawn by the largest motor or sum of all
motors and electrical devices that might operate
at one time during normal operations.
For your own safety and protection of
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
Full-Load Rating.......................................11.6A
The full-load current is not the maximum amount
of amps that the machine will draw. If the machine
is overloaded, it will draw additional amps beyond
the full-load rating.
Note: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, con-
sult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.
If the machine is overloaded for a sufficient length
of time, damage, overheating, or fire may result—
especially if connected to an undersized circuit.
To reduce the risk of these hazards, avoid over-
loading the machine during operation and make
sure it is connected to a power supply circuit that
meets the specified circuit requirements.
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Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is nec-
essary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Grounding & Plug Requirements
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!
Check with a qualified electrician or service per-
sonnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, discon-
nect it from power, and immediately replace it with
a new one.
GROUNDED
5-15 RECEPTACLE
Extension Cords
Grounding Prong
We do not recommend using an extension cord
with this machine. If you must use an extension
cord, only use it if absolutely necessary and only
on a temporary basis.
5-15 PLUG
Extension cords cause voltage drop, which can
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
Neutral Hot
Figure 6. Typical 5-15 plug and receptacle.
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
Minimum Gauge Size...........................14 AWG
Maximum Length (Shorter is Better).......50 ft.
SHOCK HAZARD!
Two-prong outlets do not meet the grounding
requirements for this machine. Do not modify
or use an adapter on the plug provided—if
it will not fit the outlet, have a qualified
electrician install the proper outlet with a
verified ground.
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SECTION 3: SETUP
Setup Overview
Unpacking
Your machine was carefully packaged for safe
transportation. Remove the packaging materials
from around your machine and inspect it. If you
discover any damage, please call us immediately
at (570) 546-9663 for advice.
The list below outlines the basic process of setting
up the machine for first-time operation. Specific
steps are covered later in this section.
The typical setup process is as follows:
Save the containers and all packing materials for
possible inspection by the carrier or its agent.
Otherwise, filing a freight claim can be difficult.
1. Unpack machine and inventory contents of
box/crate.
2. Clean machine and its components.
When you are completely satisfied with the condi-
tion of your shipment, inventory the contents.
3. Move machine to an acceptable location,
level bedways, and secure in place.
4. Assemble machine and make sure it is ready
for operation.
SUFFOCATION HAZARD!
Keep children and pets away
from plastic bags or packing
materials shipped with this
machine. Discard immediately.
5. Connect machine to power source.
6. Test run machine and various safety compo-
nents to ensure they function properly.
7. Perform spindle break-in procedure to pre-
pare spindle bearings for operational loads.
Needed for Setup
The following are needed to complete the setup
process, but are not included with your machine.
Description
•
•
•
•
•
•
•
•
Another Person for Moving Machine
Safety Glasses
Cleaner/Degreaser (Page 19)
Quality Metal Protectant
Disposable Shop Rags
Forklift
Lifting Slings (rated for at least 700 lbs.)
Mounting Hardware (Page 22)
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Loose Components (Figure 8)
I. Open-End Wrench Set
Qty.
Inventory
(8/10, 12/14, 17/19, 36mm)................... 1 Ea.
J. Dead Center MT#5..................................... 1
K. Dead Center MT#3..................................... 1
L. Lathe Chuck Key........................................ 1
M. Square Socket T-Wrench ........................... 1
N. Spanner Wrench 63mm Pin-Type .............. 1
O. Spanner Wrench 45–52mm Hook-Type..... 1
P. Hardware Bag ............................................ 1
—Cap Screw M10-1.5 x 35 ........................ 4
—Cap Screw M10-1.5 x 30 ........................ 3
—Cap Screw M8-1.25 x 25 ........................ 4
—Flat Washer 10mm ................................. 7
—Lock Washer 10mm................................ 3
Q. Spindle Locking Pin.................................... 1
R. Handwheel Handle (Cross Slide) ............... 1
S. Handwheel Handle (Carriage).................... 1
T. Timing Belt ................................................. 1
U. V-Belt.......................................................... 1
V. Mill Chuck Key 5⁄16" AH 11T SD-5⁄8"............ 1
W. Hex Wrench Set (3, 4, 5, 6, 8mm)........1 Ea.
X. Change Gear Set (35, 50, 60T)............1 Ea.
Y. 3-Jaw Chuck External Jaw Set .................. 1
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
Installed Components (Figure 7)
Qty.
A. Lathe Chuck Guard.................................... 1
B. 3-Jaw Chuck .............................................. 1
C. 4-Way Tool Post ......................................... 1
D. Milling Headstock ....................................... 1
E. Mill Safety Shield........................................ 1
F. Backsplash................................................. 1
G. Tailstock...................................................... 1
H. Drill Chuck 1⁄2" ............................................ 1
D
A
B
I
C
J
L
F
K
X
E
M
W
V
N
U
Y
O
G
H
Figure 7. Components installed when shipped.
R
P
T
S
Q
Figure 8. Components loose when shipped.
NOTICE
If you cannot find an item on this list, care-
fully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpack-
ing or they are pre-installed at the factory.
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Cleanup
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. Avoid
using these products
to clean machinery.
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
Many cleaning solvents
are toxic if inhaled. Only
work in a well-ventilated
area.
There are many ways to remove this rust preven-
tative, but the following steps work well in a wide
variety of situations. Always follow the manufac-
turer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
NOTICE
Avoid chlorine-based solvents, such as
acetone or brake parts cleaner, that may
damage painted surfaces.
Before cleaning, gather the following:
•
•
•
•
Disposable rags
Cleaner/degreaser (WD•40 works well)
Safety glasses & disposable gloves
Plastic paint scraper (optional)
T23692—Orange Power Degreaser
A great product for removing the waxy shipping
grease from your machine during clean up.
Basic steps for removing rust preventative:
1. Put on safety glasses.
2. Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
for 5–10 minutes.
3. Wipe off the surfaces. If your cleaner/degreas-
er is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
off the rest with the rag.
Figure 9. T23692 Orange Power Degreaser.
4. Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
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Site Considerations
Weight Load
Physical Environment
Refer to the Machine Data Sheet for the weight
of your machine. Make sure that the surface upon
which the machine is placed will bear the weight
of the machine, additional equipment that may be
installed on the machine, and the heaviest work-
piece that will be used. Additionally, consider the
weight of the operator and any dynamic loading
that may occur when operating the machine.
The physical environment where the machine is
operated is important for safe operation and lon-
gevity of machine components. For best results,
operate this machine in a dry environment that is
free from excessive moisture, hazardous chemi-
cals, airborne abrasives, or extreme conditions.
Extreme conditions for this type of machinery are
generally those where the ambient temperature
range exceeds 41°–104°F; the relative humidity
range exceeds 20%–95% (non-condensing); or
the environment is subject to vibration, shocks,
or bumps.
Space Allocation
Consider the largest size of workpiece that will
be processed through this machine and provide
enough space around the machine for adequate
operator material handling or the installation of
auxiliary equipment. With permanent installations,
leave enough space around the machine to open
or remove doors/covers as required by the main-
tenance and service described in this manual.
See below for required space allocation.
Electrical Installation
Place this machine near an existing power source.
Make sure all power cords are protected from
traffic, material handling, moisture, chemicals, or
other hazards. Make sure to leave enough space
around machine to disconnect power supply or
apply a lockout/tagout device, if required.
Lighting
Children or untrained people
may be seriously injured by
this machine. Only install in an
access restricted location.
Lighting around the machine must be adequate
enough that operations can be performed safely.
Shadows, glare, or strobe effects that may distract
or impede the operator must be eliminated.
Wall
Min. 30" For
Maintenance
59"
Keep
Workpiece
Loading
Area
Unobstructed
30"
Figure 10. Minimum working clearances.
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4. To balance load for lifting, move tailstock and
carriage to right end of bedway, then lock
them in place.
Lifting & Placing
Note: Before trying to move carriage, make
sure carriage lock is loose and half nut is
disengaged.
HEAVY LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
5. Wrap lifting slings around bed and between
leadscrew and bedway, as shown in Figure
11, to help prevent bending leadscrew during
lifting.
Do not attempt to lift or move the machine with-
out using the proper lifting equipment (such as
a forklift or crane) or the necessary assistance
from other people. Refer to Needed for Setup on
Page 17 for details.
Lifting
Sling
To lift and place machine:
1. Remove shipping crate top and sides, then
remove chip pan, 4-jaw chuck, faceplate, and
toolbox from shipping pallet.
Figure 11. Example of lifting slings positioned
correctly on a similar machine.
2. Position chip pan on workbench or other
selected mounting surface to use it for mark-
ing hole locations for mounting hardware
(refer to Mounting on Page 22).
6. Attach lifting slings to forklift forks (or other
power lifting equipment).
3. Unbolt machine from shipping pallet.
To balance load when lifting, lifting strap
closest to headstock must be slightly short-
er than lifting strap on tailstock side. If you
are using lifting straps of equal length, this
can be achieved by wrapping lifting strap on
headstock side one or more times around
forklift fork, or by placing a block of wood
on fork to raise ends of lifting strap.
Only use lifting slings and power lifting
equipment rated for at least 300 lbs. and in
good working condition. If machine falls or
tips over while moving it, serious personal
injury and property damage could result.
7. Have an assistant hold mill headstock to
steady load, then lift machine just enough to
clear any obstacles and move it to the work-
bench or other selected mounting location.
8. Properly secure machine in place as instruct-
ed in Mounting subsection on Page 22.
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Mounting & Leveling
For accurate turning results and to prevent
warping the cast iron bed and ways, the
lathe bedways MUST be leveled from side-
to-side and from front-to-back on both ends.
Number of Mounting Holes ............................ 4
Diameter of Mounting Hardware................. 1⁄2
"
Follow these guidelines when mounting your
machine to ensure safe and accurate cutting
results:
Recheck the bedways 24 hours after
installation, two weeks after that, and then
annually to make sure they remain level.
•
Make sure stand or workbench can ade-
quately support weight of machine and mate-
rials, and that it will not move or vibrate dur-
ing operation.
Leveling machinery helps precision components,
such as bedways, remain straight and flat dur-
ing the lifespan of the machine. The bed on a
lathe that is not level may slowly twist due to the
dynamic loads placed on the machine during
operation.
•
Use a silicon sealant between the machine
base and chip pan to prevent coolant or other
fluids from leaking through onto the stand,
workbench, or floor.
For best results, use a precision level that is at
least 12" long and sensitive enough to show a
distinct movement when a 0.003" shim (approxi-
mately the thickness of one sheet of standard
newspaper) is placed under one end of the level.
—If mounting machine to a stand (not includ-
ed), follow the instructions included with it.
Ensure stand is anchored to floor.
See Figure 13 for an example of a high-precision
level.
—If mounting machine to a workbench, drill
holes all the way through workbench, and
use hex bolts, washers, and hex nuts to
secure machine in place (see example
below).
Hex Nut
Lock Washer
Flat Washer
Lath
Silicon
Figure 13. Grizzly Model H2683 12" Master
Chip Pan
Machinist's Level.
Workbench
Flat Washer
Hex Bolt
Figure 12. Example of a "Through Mount" setup.
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3. Place timing belt behind motor pulley
and around motor timing-belt pulley (see
Figure 15).
Assembly
With the exception of the handwheel handles and
belts, the Model G0773 is shipped fully assem-
bled.
4. Install free end of timing belt on timing-belt
pulley (see Figure 15), making sure teeth of
belt mesh with notches in pulley.
To assemble machine:
5. Pull timing-belt up, creating tension in timing
belt, then tighten (2) hex nuts from Step 1.
1. Use a flat head screwdriver to attach
handwheel handles shown in Figure 14.
6. LoosenM8-1.25x25hexboltthatsecuresten-
sioner to timing gear bracket (see Figure 16).
Cross Slide
Handle
Spindle Pulley
Carriage
Handle
V-Belt
Tensioner
Idler
Figure 14. Handwheel handles installed.
Pulley
2. Loosen (2) M12-1.75 hex nuts that secure
timing-belt pulley to idler bracket (see Figure
15), allowing timing-belt pulley to slide in its
mounting slot.
Figure 16. V-belt controls and components.
7. Install V-belt onto largest spindle pulley
groove and smallest idler pulley groove, as
shown in Figure 16.
Idler
Bracket
8. Pivot tensioner against V-belt to create ten-
sion (see Figure 16) and re-tighten hex bolt
from Step 1.
x2
Note: The V-belt/pulley configuration of
Model G0773 varies depending on spindle
speed. The steps above illustrate V-belt
installation for 150 RPM, which is the starting
speed in the Lathe Spindle Break-In proce-
dure on Page 26. For more detailed instruc-
tions on selecting proper configurations for
specific spindle speeds, see Setting Spindle
Speed on Page 41.
Motor
Timing-Belt
Pulley
Timing
Belt
Timing-Belt
Pulley
Motor Pulleys
Figure 15. Timing belt installation components.
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3. Set spindle direction switch to OFF position.
4. Set lathe/mill selector switch to "1".
Test Run
Once assembly is complete, test run the machine
to ensure it is properly connected to power and
safety components are functioning properly.
5. Make sure chuck and jaws, if installed, are
secure (see Chuck Installation on Page 28).
Note: If a chuck is not installed on the lathe,
you do not need to install one for this test run.
If you find an unusual problem during the test run,
immediately stop the machine, disconnect it from
power, and fix the problem BEFORE operating the
machine again. The Troubleshooting table in the
SERVICE section of this manual can help.
6. Disengage half nut with lever by positioning
lever as shown in Figure 18.
Serious injury or death can result from
using this machine BEFORE understanding
its controls and related safety information.
DO NOT operate, or allow others to operate,
machine until the information is understood.
Half Nut
Lever
DO NOT start machine until all preceding
setup instructions have been performed.
Operating an improperly set up machine
may result in malfunction or unexpect-
ed results that can lead to serious injury,
death, or machine/property damage.
Engaged
Disengaged
Figure 18. Half nut lever positioned to disengage
half nut.
To test run machine:
7. Connect machine to power. Lathe power light
(Figure 17) should illuminate if machine is
correctly connected to power supply and all
electrical controls are positioned correctly for
startup.
1. Make sure all tools and objects used during
setup are cleared away from machine.
2. Press Emergency Stop button cover (see
Figure 17) to prevent unexpected start up.
Spindle Direction
Switch
Lathe Power Light
Emergency
Stop Button
Cover
Lathe/Mill
Selector Switch
Figure 17. Headstock controls.
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8. Press tab on side of Emergency Stop button
to open switch cover (see Figure 19), and
reset switch by pressing green ON button (be
sure to leave switch cover open; otherwise,
closing it will prevent operation).
12. Turn variable-speed dial (Figure 20) com-
pletely counterclockwise to lowest possible
setting.
Variable-
Speed Dial
Spindle
Direction Switch
Emergency
Stop Button
Switch Cover
OFF Button
ON Button
Figure 20. Location of mill head Emergency
Stop button and variable-speed dial.
Figure 19. Emergency Stop button lathe.
13. Open Emergency Stop button switch cover
(Figure 20) and reset switch in the same
manner as you did in Step 8. The mill power
light should illuminate if machine is correctly
connected to power supply and all electrical
controls are positioned correctly for startup.
9. Turn spindle direction switch shown in Figure
19 to "FOR" (forward) position. The spindle
should rotate counterclockwise—down and
toward front of lathe.
The machine should run smoothly with little to
no vibration or rubbing noises.
14. Turn mill ON by rotating variable-speed dial
clockwise, then rotate dial all the way clock-
wise to achieve maximum spindle speed.
—Strange or unusual noises should be
investigated and corrected before operat-
ing machine further. Always disconnect
machine from power when investigating or
correcting potential problems.
15. Press Emergency Stop button to turn mill
OFF. Then, without resetting Emergency
Stop button, try to restart spindle rotation by
rotating variable-speed dial all the way coun-
terclockwise and then clockwise. The spindle
should not start.
10. Press Emergency Stop button to turn lathe
OFF and stop spindle rotation. Then, with-
out resetting Emergency Stop button, try to
restart spindle rotation by rotating spindle
direction switch all the way clockwise and
then counterclockwise. The spindle should
not start if the Emergency Stop button is
working correctly.
—If spindle does start with Emergency Stop
button pressed in, the button is not oper-
ating correctly. This safety feature must
operate properly before further using the
machine. Turn spindle direction switch
OFF to stop mill, disconnect machine from
power, and call Tech Support for help.
—If spindle does start with Emergency Stop
button pressed in, the button is not operat-
ing correctly. To reduce the risk of injury,
this safety feature must operate prop-
erly before further using the machine. Turn
spindle direction switch OFF to stop lathe,
disconnect lathe from power, and call Tech
Support for help.
Congratulations! The Test Run is complete!
Now perform the Spindle Break-In proce-
dure beginning on Page 26.
11. Set lathe/mill selector switch to "2" for mill
mode (see Figure 17 on Page 24).
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4. DISCONNECT MACHINE FROM POWER!
Spindle Break-In
5. Set spindle speed to 1130 RPM and repeat
the same process of running spindle for 5
minutes in each direction.
The spindle break-in procedure distributes lubri-
cation throughout the bearings to reduce the risk
of early bearing failure if there are any "dry" spots
or areas where lubrication has settled in the bear-
ings. You must complete this procedure before
placing operational loads on the spindle for the
first time when the machine is new or if it has
been sitting idle for longer than 6 months.
Note: If necessary, refer to Setting Spindle
Speed on Page 41 for detailed instructions.
6. Set spindle speed to 2100 RPM and repeat
the process once again.
Congratulations! The lathe spindle break-in is
complete.
Always start the spindle break-in at the lowest
speed to minimize wear if there are dry spots.
Allow the spindle to run long enough to warm up
and distribute the bearing grease, then incremen-
tally increase spindle speeds, allowing the spindle
to run the same amount of time at each speed, until
reaching the maximum spindle speed. Following
the break-in procedure in this progressive man-
ner helps minimize any potential wear that could
occur until lubrication is fully distributed.
Mill Spindle Break-In
1. Successfully complete Lathe Spindle
Break-In.
2. Run mill spindle at lowest speed (100 RPM)
for a minimum of 10 minutes.
3. Run mill spindle at highest speed (2500
RPM) for 10 minutes.
4. Rotate spindle speed dial all the way counter-
clockwise to "0", then press Emergency Stop
button.
You must complete this procedure to main-
tain the warranty. Failure to do this could
cause rapid wear-and-tear of spindle bear-
ings once they are placed under load.
Congratulations! The mill spindle break-in is
complete.
Lathe Spindle Break-In
1. Successfully complete Test Run procedure
beginning on Page 24.
Recommended
Adjustments
2. Run lathe spindle at 150 RPM for minimum
of 5 minutes in the forward ("FOR") direction,
and then another 5 minutes in the reverse
("REV") direction.
The following adjustments have been made at the
factory. However, because of the many variables
involved with shipping, we recommend you verify
these adjustments to ensure the best results:
Note: During Installing V-Belt in the
Assembly section on Page 23, spindle speed
was set at 150 RPM.
Factory adjustments that should be verified:
3. Press Emergency Stop Button to turn lathe
OFF.
•
•
•
•
Tailstock alignment ........................ Page 34
Cross slide backlash adjustment.....Page 71
Leadscrew backlash........................Page 71
Gib adjustments ..............................Page 72
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SECTION 4: LATHE OPERATIONS
To complete a typical lathe operation, the
operator does the following:
Operation Overview
1. Securely mounts workpiece in lathe.
The purpose of this overview is to provide the nov-
ice machine operator with a basic understanding
of how the machine is used during operation, so
2. Puts on safety glasses and a face shield, rolls
up sleeves, removes jewelry, and secures
the machine controls/components discussed later
any clothing, jewelry, or hair that could get
in this manual are easier to understand.
entangled in moving parts.
Due to the generic nature of this overview, it is
not intended to be an instructional guide. To learn
more about specific operations, read this entire
3. Installs tooling on toolpost, then backs it
away to establish a safe startup clearance.
manual and seek additional training from expe-
rienced machine operators, and do additional
4. Removes all setup tools from lathe.
research outside of this manual by reading "how-
to" books, trade magazines, or websites.
5. Checks for safe clearances by rotating
workpiece by hand at least one full revolution.
6. Moves slides to where they will be used dur-
ing operation.
To reduce your risk of
7. If using power feed, selects appropriate feed
serious injury, read this
entire manual BEFORE
using machine.
rate and direction.
8. Sets spindle speed according to workpiece
size and material.
9. Starts spindle rotation and uses carriage
handwheels or power feed options to move
tooling into workpiece for operations.
To reduce risk of eye or face injury from
flying chips, always wear approved safety
glasses and face shield when operating this
machine.
10. When finished turning, rotates spindle direc-
tion switch to OFF, presses Emergency Stop
button, then removes workpiece.
If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any proj-
ects. Regardless of the content in this sec-
tion, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
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Chuck Mounting
Chuck Installation
This lathe is equipped with a D1-type spindle
nose. This type of spindle uses camlocks that are
adjusted with a chuck key to securely mount a
chuck or faceplate with repeatable precision and
To ensure accurate work, it is extremely important
to make sure the spindle nose and chuck mating
surfaces/tapers are clean. Even a small amount of
lint or debris can affect accuracy.
The chuck is properly installed when all camlocks
are tight, the spindle and chuck tapers firmly
lock together, and the back of the chuck is firmly
seated against the face of the spindle all the way
around—without any gaps.
Never use spindle speeds faster than chuck
RPM rating or safe limits of your workpiece.
Excessive spindle speeds greatly increase
risk of workpiece or chuck being thrown
from machine with deadly force!
To install chuck:
1. DISCONNECT LATHE FROM POWER!
This lathe ships with the 3-jaw chuck installed.
This is a scroll-type chuck where all three jaws
move in unison when the chuck key is used.
2. Use appropriate lifting, support, or protec-
tive device to protect ways and support
chuck during installation process (refer to
Installation & Removal Devices section on
previous page).
Installation &
Removal Device
3. Clean and lightly oil camlock studs, then thor-
oughly clean mating surfaces of spindle and
chuck.
4. Install chuck by inserting camlock studs
Place a piece of plywood over the bedways to pro-
tect them from damage if a chuck or other tooling
is dropped (see below).
straight into spindle cam holes.
Important: Avoid inserting the studs by piv-
oting them in from an angle or rotating the
spindle. This can damage studs or spindle
cam holes.
Plywood Protection
Plate for Chucks
Installed by Hand
CORRECT
INCORRECT
Figure 21. Example of common device used
during chuck installation and removal.
Figure 22. Inserting camlock studs into spindle
cam holes.
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5. Incrementally tighten camlocks in criss-cross
or star pattern to ensure that chuck seats
evenly against spindle.
7. Verify that chuck fits spindle properly by
checking for any gaps between mating sur-
faces.
6. When chuck is fully seated and all camlocks
are tight, verify that cam line is between the
two “V” marks on spindle nose, as shown in
following figure.
—If there is not a gap, proceed to Step 8.
—If there is a gap, remove chuck, re-clean
mating surfaces carefully, and re-install. If
problem persists, contact our Tech Support.
8. Verify that chuck/spindle tapers are seat-
ed firmly together by removing chuck, per
Chuck Removal instructions, and pay close
attention to how easily tapers release.
—If it was necessary to bump chuck or use
a mallet to release tapers, then they are
seating together properly.
Cam line between “V”s
—If tapers released easily with little interven-
tion, they are not seated together firmly as
required. Remove chuck, re-clean mating
surfaces carefully, and re-install. If problem
persists, contact our Tech Support.
Figure 23. Cam line positioned between the "V"
marks after the camlocks are fully tightened.
—If cam line is NOT between "V" marks when
camlock is tight, stud may be installed at
incorrect height. To fix this, adjust stud
height as shown in following figure. Make
sure to re-install stud cap screw afterward.
Registration Marks
Lightly stamp registration marks across the mating
seams of chuck components. These marks will
help you re-install the chuck in the same position
after removal, which ensures consistent chuck
balance and turning results, and allows the
same camlocks and studs to operate together for
consistent locking and unlocking.
—If adjusting stud height does not correct
problem, try swapping stud positions on
chuck.
Spindle & Chuck
Registration Marks
Camlock
Spindle
INCORRECT
INCORRECT
Stud Too High:
Turn In
Stud Too Low:
Turn Out
One-Turn
One-Turn
Figure 25. Registration mark locations.
Figure 24. Correcting an improperly installed
stud.
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Chuck Removal
Scroll Chuck
Clamping
To remove chuck:
This 3-jaw, scroll-type chuck has an internal scroll-
gear that moves all jaws in unison when adjusted
with the chuck key. This chuck holds cylindrical
parts on-center with the axis of spindle rotation
and can be rotated at high speeds if the workpiece
is properly clamped and balanced.
1. DISCONNECT LATHE FROM POWER!
2. Use appropriate lifting, support, or protective
device to protect ways and support chuck
(refer to Installation & Removal Devices
section for more details).
Never mix jaw types or positions to
accommodate an odd-shaped workpiece. The
chuck will spin out of balance and may throw the
workpiece! Instead, use an independent jaw chuck
or a faceplate.
3. Loosen camlocks by turning key counter-
clockwise until each cam line is aligned with
its corresponding spindle mark, as shown
below.
Insufficient
Jaw Clamping
Safer Inside
Jaw Use
Cam line and spindle mark aligned
Unstable
Workpiece
Bar Stock
CORRECT
INCORRECT
Unsafe Jaw Position and
Poor Scroll Gear Engagement
Safer Outside
Jaw Use
Poor Grip
Figure 26. Camlock is fully loosened when the
cam line is aligned with the spindle mark.
Shallow
Bar Stock
Unstable
Workpiece
Tip: Camlocks can become very tight. A
cheater pipe may be used as a last resort to
add leverage when loosening. After loosen-
ing, you may need to wiggle the chuck key in
the camlock to fully disengage the stud.
CORRECT
INCORRECT
Unsafe Inside
Safer Outside
Jaw Use
Jaw Use
Poor Scroll
Gear
Engagement
4. Using dead blow hammer or other soft mal-
let, lightly tap around outer circumference of
chuck body to loosen it from spindle.
Shallow
Bar Stock
Unsafe Jaw
Position
5. Remove chuck from spindle, using light rock-
ing motion to carefully slide studs out of cam
holes.
CORRECT
INCORRECT
Unsafe Jaw Position
Safer Inside
Jaw Use
—If chuck does not immediately come off,
rotate it approximately 60° and tap it again.
Make sure all marks on cams and spindle
are properly aligned for removal.
Cylinder
Poor Scroll
CORRECT
INCORRECT
Gear Engagement
Figure 27. Jaw selection and workpiece holding.
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To change jaw set:
Changing Jaw Set
1. DISCONNECT MACHINE FROM POWER!
The 3-jaw scroll chuck included with the lathe
features inside and outside hardened steel jaw
sets (see Figure below), which move in unison to
center a concentric workpiece.
2. Use appropriate device to protect ways (refer
to Installation & Removal Device subsec-
tion).
3. Insert chuck key and turn it counterclockwise
to back jaws out and remove them individu-
ally in descending order (i.e., 3, 2, 1).
When installing the jaws, it is important to make
sure they are installed correctly. Incorrect installa-
tion will result in jaws that do not converge evenly
and are unable to securely clamp a workpiece.
4. Use mineral spirits to clean debris and grime
from jaws and chuck jaw guides.
5. Apply thin coat of NLGI #2 grease to surfaces
of removed jaw set. Store in safe place free
from moisture and abrasives.
6. Rotate chuck key clockwise until you see tip
of outer scroll-gear lead thread about to enter
a jaw guide (see below).
1
Outside Set
Inside Set
1
Figure 28. Chuck and jaw selection.
Jaws are numbered from 1–3 (see Figure below).
The number is typically stamped on the side or
bottom. Jaws are designed to be installed coun-
terclockwise in numerical order in the matching
numbered jaw guides, so they will hold a concen-
tric workpiece evenly.
Lead Thread
Figure 30. Lead thread on scroll gear.
7. Insert jaw #1 into jaw guide #1 and hold jaw
Jaw Guides
against scroll-gear.
Jaw Numbers
3
8. Rotate chuck key clockwise one turn to
engage tip of scroll-gear lead thread into jaw.
Pull jaw; it should be locked into jaw guide.
1
1
2
9. Install remaining jaws in numerical order, in
the same manner. The jaws should converge
evenly at center of chuck.
3
—If jaws do not converge evenly, remove
them. Check that jaw numbers and jaw
guides match. Re-install jaws sequentially
1–3, making sure each one engages with
scroll-gear lead thread during its first rota-
tion.
Figure 29. Jaw guide and jaw numbers.
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Tailstock Quill Specs
Tailstock
Graduated Dial on Handwheel
Increments................................................. 0.001"
One Full Revolution..................................... 0.04"
The tailstock is typically used to support long
workpieces at the side opposite the spindle, using
a live or dead center. It can also hold a tapered
drill bit (or a drill chuck with a regular drill bit) for
boring holes. Unlike boring done with a drill press
where the workpiece is fixed and the drill bit
rotates, the drill bit in a tailstock remains station-
ary while the workpiece is rotated by the spindle.
Increments on Quill Scale
Inch .............................0"–2" in 0.10" Increments
Metric .................... 0–50mm in 1mm Increments
Positioning Tailstock
1. Rotate tailstock lock lever clockwise (facing
machine) to unlock tailstock from bedways.
The entire tailstock can be repositioned and
locked in place along the length of the bed. An
independently controlled offset adjustment allows
the upper part of the tailstock to move perpen-
dicular to the bedways so it can be aligned with
the spindle center (for concentric turning) or offset
from the spindle center (for tapered turning).
2. Slide tailstock to desired position by pushing
it along the bedways.
3. Rotate tailstock lock lever counterclockwise
to lock tailstock against bedways.
Using Quill
The tailstock quill also features independent
adjustment controls that allow it to be advanced
toward the spindle or locked firmly in position.
1. Rotate quill lock lever counterclockwise to
loosen quill.
2. Turn quill handwheel clockwise to move quill
toward spindle or counterclockwise to move it
away from spindle.
Tailstock
Quill
Lock Lever
Handwheel
3. Rotate quill lock lever clockwise to secure
quill.
Quill Lock
Lever
Quill
Offset Adjustment
Screw (1 of 2)
Figure 31. Tailstock controls and features.
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To install tooling in the tailstock:
Installing Tooling
The tailstock quill accepts MT#3 tapered arbors
1. With tailstock locked in place, unlock quill,
then use handwheel to extend it approxi-
mately 1".
(see the Figures below for examples).
2. Thoroughly clean and dry tapered mating
surfaces of quill and center, making sure no
lint or oil remains on tapers.
Screw
End
Solid
End
Open
End
Solid
End
3. With a firm and quick motion, insert tool into
quill. Check to see if it is firmly seated by
attempting to twist it—a firmly seated tool will
not twist.
4. Unlock tailstock and move it until tip of tool
is close to, but not touching, workpiece, then
lock tailstock.
Figure 32. Types of tapered arbors and tooling.
5. Start spindle rotation, unlock quill lock lever,
then turn quill handwheel clockwise to feed
tool into workpiece.
Removing Tooling
1. Use shop rag to hold tool.
2. Rotate quill handwheel counterclockwise to
fully retract quill into tailstock until tool is
forced out of quill.
Figure 33. Example photos of inserting tools into
the tailstock.
Note: If the tooling has an open hole in the end,
then a screw can be threaded into the end of the
tool to provide a solid surface for the quill pin to
push against when the quill is retracted for tool
removal. Otherwise, removal of such tooling may
be difficult.
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Offsetting Tailstock
Aligning Tailstock to Spindle
Centerline
The tailstock quill can be offset from the spin-
dle centerline for turning tapers. Offsetting quill
toward the front of the lathe results in a taper
at the tailstock end. Conversely, offsetting quill
toward the back of the lathe results in a taper at
the spindle end.
This is an essential adjustment that should be ver-
ified or performed each time the tailstock is used
to turn concentric workpieces between centers
or immediately after offsetting the tailstock when
turning a taper. If the tailstock is not aligned with
the spindle centerline when it is supposed to be,
turning results will be inaccurate along the length
of the workpiece.
Note: The marks on the offset indicator are arbi-
trary. For a precise offset, use a dial indicator to
check quill movement while adjusting the screws.
Items Needed
Qty
Hex Wrench 4mm.............................................. 1
Round Stock 2" x 6".......................................... 2
Adjustment
Set Screws
(1 of 2)
To align tailstock to spindle centerline:
1. Use precision level to make sure bedway is
level from side to side and from front to back.
—If bedway is not level, correct this condition
before continuing with this procedure (refer
to Leveling section in this manual).
Offset
Indicator
Figure 34. Tailstock offset adjustment.
2. Center drill both ends of a piece of round
stock, then set it aside for use in Step 5.
Tool Needed
Qty
Hex Wrench 4mm.............................................. 1
3. Use another piece of round stock to make a
dead center. Turn it to a 60° point, as illus-
trated in below.
To offset the tailstock:
1. Loosen tailstock lock to release clamping
pressure on top and bottom castings.
2. Rotate adjustment set screws in opposite
directions for desired offset (see below).
Turn
CCW
Turn
CCW
Turn
CW
Turn
CW
Figure 36. Turning a dead center.
Note: As long as this dead center remains
unmoved in the chuck, its point will remain
true to the spindle centerline. However, if the
center is removed and later returned to the
chuck, the point must be re-turned to once
again be true with the spindle centerline.
Figure 35. Example of set screw adjustment in
relation to tailstock movement.
3. Tighten tailstock lock to secure the offset.
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4. Install center in tailstock.
8. Use calipers to measure both ends of work-
piece.
5. Attach lathe dog to test stock from Step 2,
then mount it between centers, as shown
below.
—If test stock is thicker at tailstock end, move
1
tailstock toward front of lathe ⁄2 the dis-
tance of taper amount, as shown below.
Move tailstock toward
front of lathe 1/2 the
amount of taper.
Looking down from above.
Figure 37. Example of stock mounted between
Figure 38. Adjust tailstock toward the operator.
—If test stock is thinner at tailstock end,
the centers.
6. Turn 0.010" off stock diameter.
1
move tailstock toward back of lathe ⁄2 the
distance of the amount of taper, as shown
below.
7. Mount test or dial indicator so that plunger is
on tailstock quill.
Note: If necessary in the following step, refer
to the Offsetting Tailstock subsection for
detailed instructions.
Looking down from above.
Move tailstock toward
back of lathe 1/2 the
amount of taper.
Figure 39. Adjust tailstock away from operator.
9. Repeat Steps 6–8 until desired accuracy is
achieved.
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Mounting Dead Center in Spindle
1. DISCONNECT LATHE FROM POWER!
Dead Centers
2. Thoroughly clean and dry all threads and
mating surfaces of spindle bore and center,
making sure that no lint or oil remains on
these surfaces.
A dead center is a one-piece center that, when
mounted in the tailstock, does not rotate with the
workpiece and is used to support long, slender
workpieces.
Note: This will prevent the tapered surfaces
from seizing due to operational pressures,
which could make it very difficult to remove
the center.
Use the dead center in the spindle for operations
where the workpiece rotates with the center and
does not generate friction.
Figure 40 shows the MT#3 and MT#5 dead cen-
ters included with the lathe.
3. Mount chuck or faceplate onto spindle, which-
ever is correct for your operation.
4. Insert center into spindle bore through chuck
MT#3 Dead
Center
or faceplate.
The Figure below shows an example photo
of a dead center installed in spindle, using a
lathe dog and faceplate for turning between
centers.
MT#5 Dead
Center
MT#5 Dead
Center
Figure 40. Dead centers.
Lathe
Dog
Figure 41. Example of using a dead center with
a faceplate and lathe dog.
Removing Center from Spindle
To remove the sleeve and center from the spindle,
insert a piece of round bar stock (or similar)
through the outside end of the spindle. Have
another person hold onto the sleeve and center
with a gloved hand or shop rag, then tap the bar
stock to knock the sleeve loose.
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Mounting Center in Tailstock
Removing Center from Tailstock
Either a carbide-tipped dead center or live center
can be used in the tailstock. Mounting instructions
are the same for both. The Figure below shows
an example photo of a dead center mounted in a
tailstock.
To remove the center from the quill, hold onto it
with a gloved hand or shop rag, then rotate the
quill handwheel counterclockwise to draw the quill
back into the casting until the center releases.
Mounting Workpiece Between
Centers
1. DISCONNECT LATHE FROM POWER!
Dead Center
2. Drill center holes in both ends of workpiece.
3. Install dead center in spindle with lathe dog
and chuck, faceplate or drive plate, then
install live center or carbide-tipped dead cen-
ter in tailstock.
4. Lubricate dead center point and workpiece
center holes, then mount workpiece between
centers and hold it in place with light pressure
from tailstock center.
Figure 42. Example of using dead center
installed in the tailstock.
To mount center in tailstock:
5. Seat center firmly into quill by rotating quill
handwheel clockwise to apply pressure
against workpiece (see example below).
1. DISCONNECT MACHINE FROM POWER!
2. Thoroughly clean and dry tapered mating
surfaces of tailstock quill bore and center,
making sure no lint or oil remains on tapers.
3. Use quill handwheel to feed quill out from
casting approximately 1".
Note: The maximum quill travel is 3.2", but
we do not recommend extending the quill
more than 1" or stability and accuracy will be
reduced.
Figure 43. Example photo of a workpiece
mounted between two centers.
4. Insert center into tailstock quill.
5. Seat center firmly into quill during workpiece
installation by rotating quill handwheel clock-
wise to apply pressure with center engaged
in center hole of workpiece.
Note: Only apply enough pressure to securely
mount the workpiece between centers. Avoid
over-tightening the center against the workpiece,
or it may become difficult to remove later. Also,
over-tightening will result in excessive friction and
heat, which may damage the workpiece or center.
Note: Only apply enough pressure with
tailstock quill to securely mount workpiece
between centers. Avoid overtightening cen-
ter against workpiece, or it may become
difficult to remove later, and it will result in
excessive friction and heat, which may dam-
age workpiece and center.
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Compound Rest
Four-Way Tool Post
The four-way tool post is mounted on top of the
compound rest and allows a maximum of four
tools to be loaded simultaneously.
The compound rest handwheel has an indirect-
read graduated scale. This means that the dis-
tance shown on the scale represents the actual
distance the cutting tool moves. The base of the
compound rest has another graduated scale used
for setting the cutting tool to a specific angle.
Each tool can be quickly indexed to the workpiece
by loosening the top handle, rotating the tool
post to the desired position, then retightening the
handle to lock the tool into position.
Graduated Dial
Increments............................... 0.001" (0.025mm)
One Full Revolution.....................0.08" (2.03mm)
Installing Tool
Tool Needed
Qty
Tool Needed
Qty
Tool Post T-Wrench........................................... 1
Hex Wrench 6mm.............................................. 1
To install a tool in tool post:
To set compound rest angle:
1. Adjust tool post bolts so cutting tool can fit
1. Loosen cap screws shown in Figure 44.
underneath them (see below).
Tool Post
Bolt
Cutting
Tool ½"
x 2
Figure 45. Example of tool mounted in tool post.
Figure 44. Compound rest angle adjustments.
2. Rotate rest to desired angle, as indicated by
scale at base, then retighten cap screws.
Over-extending a cutting tool from the post
will increase risk of tool chatter, breakage,
or tool loosening during operation, which
could cause metal pieces to be thrown at
the operator or bystanders with great force.
DO NOT extend a cutting tool more than 2.5
times the width of its cross-section (e.g.,
2.5 x 0.5" = 1.25").
Tip: The first time you set the compound rest
angle for cutting threads, mark the location
on the cross slide as a quick reference point.
This will allow you to quickly return the com-
pound rest to that exact angle the next time
you need to cut threads.
2. Firmly secure cutting tool with at least two
tool post bolts.
3. Check and adjust cutting tool to spindle cen-
terline, as instructed in next subsection.
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Tools Needed
Qty
Aligning Cutting Tool with Spindle
Centerline
For most operations, the cutting tool tip should be
aligned with the spindle centerline, as illustrated
below.
Tool Post T-Wrench........................................... 1
Steel Shims ....................................... As Needed
Cutting Tool ....................................................... 1
Tailstock Center................................................. 1
To align cutting tool with tailstock center:
Cutting
Spindle
1. Mount cutting tool in tool post, then secure
Tool
post so tool faces tailstock.
Center
Line
2. Install center in tailstock, and position center
tip near cutting tool tip.
3. Lock tailstock and quill in place.
4. Adjust height of cutting tool so tool tip is
aligned vertically with center tip, as illustrated
below.
Figure 46. Cutting tool aligned with spindle
centerline (viewed from tailstock).
There are a number of ways to check and align
the cutting tool to the spindle centerline. If nec-
essary, you can raise the cutting tool by placing
steel shims underneath it. The shims should be
as long and as wide as the cutting tool to properly
support it.
(Top View)
Tailstock
Center
Below are two common methods:
Cutting
Tool
•
Move the tailstock center over the cross slide
and use a fine ruler to measure the distance
from the surface of the cross slide to the tip
of the center. Adjust the cutting tool height so
it is the same distance above the cross slide
as the tailstock center.
Cutting
Tool
Tailstock
Center
•
Align the tip of the cutting tool with a tailstock
center, as instructed in the following pro-
cedure. For this to work, the tailstock must
be aligned to the spindle centerline (refer to
Aligning Tailstock To Spindle Centerline
in this manual for detailed instructions).
(Side View)
Figure 47. Cutting tool aligned to the tailstock
center.
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Carriage Handwheel
Graduated Dial
Increments...................................0.08" (2.03mm)
Manual Feed
One Full Revolution........................1.5" (38.1mm)
The cutting tool can be manually fed into the
workpiece using the carriage, cross slide, and
compound rest handwheels shown below.
Use the carriage handwheel to move the carriage
left or right along the bed. Adjust the position of
the graduated scale by holding the handwheel
with one hand and turning the dial with the other.
Carriage
Compound
Handwheel
Rest
Cross Slide Handwheel
Graduated Dial
Handwheel
Increments............................... 0.001" (0.025mm)
One Full Revolution.....................0.08" (2.03mm)
Cross Slide
Handwheel
Use this handwheel to move the tool toward and
away from the work. The cross slide handwheel
has an indirect-read graduated dial, which shows
the actual distance the table moves.
Figure 48. Manual feeding controls.
Compound Rest Handwheel
Graduated Dial
Increments .............................. 0.001" (0.025mm)
One Full Revolution.....................0.08" (2.03mm)
Use this handwheel to move the cutting tool lin-
early along the set angle of the compound rest.
Set the compound rest angle by hand-rotating
it and securing it with the two cap screws (see
Figure 44 on Page 38). The compound rest has
an indirect-read graduated dial, which shows the
actual distance the tool moves.
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Setting Spindle Speed
Spindle Speed
Spindle speed is selected by positioning the
V-belt either between the spindle and motor pul-
leys (see Figure 50), or between the spindle and
idler pulleys. Select the motor pulleys for high
(720-2100 RPM) or idler pulleys for low (150 –470
RPM) speed ranges. The V-belt diagram below is
also found on the headstock.
Using the correct spindle speed is important for
getting safe and satisfactory results, as well as
maximizing tool life.
To set the spindle speed for your operation, you
will need to: 1) Determine the best spindle speed
for the cutting task, and 2) Configure the lathe
controls to produce the required spindle speed.
Refer to Tensioning & Replacing V-Belts on
Page 70 for instructions on removing and re-
installing V-belts.
Determining Spindle Speed
Tool Needed
Hex Wrench 4mm.............................................. 1
Qty
Many variables affect the optimum spindle speed
to use for any given operation, but the two most
important are the recommended cutting speed for
the workpiece material and the diameter of the
workpiece, as noted in the formula shown below.
Idler
Pulleys
V-Belt
*Recommended
Spindle
Cutting Speed (FPM) x 12
Speed
(RPM)
=
Spindle
Pulleys
Dia. of Cut (in inches) x 3.14
*Double if using carbide cutting tool
Motor
Pulleys
Figure 49. Spindle speed formula for lathes.
Figure 50. Belt positioned for 720 RPM.
Cutting speed, typically defined in feet per minute
(FPM), is the speed at which the edge of a tool
moves across the material surface.
A recommended cutting speed is an ideal speed
for cutting a type of material in order to produce
the desired finish and optimize tool life.
The books Machinery’s Handbook or Machine
Shop Practice, and some internet sites, pro-
vide excellent recommendations for which cutting
speeds to use when calculating the spindle speed.
These sources also provide a wealth of additional
information about the variables that affect cutting
speed and they are a good educational resource.
Also, there are a large number of easy-to-use
spindle speed calculators that can be found on
the internet. These sources will help you take into
account the applicable variables in order to deter-
mine the best spindle speed for the operation.
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Thread Charts—Display headstock end gear
positions used for cutting various metric or inch
threads (see Figure 53).
Understanding Gear
Charts
This subsection explains how to understand the
feed and thread charts on the headstock. If you do
not understand lathe gear charts, or need a quick
refresher, read this before configuring the end
gears for power feeding or threading operations.
Feed & Thread Charts Label
The feed and thread charts label (see Figure 51)
provides information for setting up end gears for
threading or non-threading operations. The top
displays metric and inch thread charts, the bottom
displays a feed chart.
Feed & Thread
Charts Label
Gearbox
Dials
Figure 51. Feed and thread charts label.
Feed Chart—Displays gearbox dial positions for
different speeds of automatic feed (power feed)
used with turning operations (see Figure 52).
Figure 53. Threading charts.
Figure 52. Feed chart.
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How to Read the Thread Charts
Figure 57 identifies the charts to use when set-
ting carriage feed movement for metric or inch
threading.
How to Read the Feed Chart
Figure 54 identifies the fifteen available feed
rates each for longitudinal and transverse carriage
movement.
Indicates Threads
Per Inch (TPI)
Indicates Metric
Thread Pitch
Figure 57. Headings indicate inch or metric
Figure 54. G0773 feed rate chart.
threads.
Figure 55 indicates that for a longitudinal feed
rate of 0.0016 in/rev., the G position gear must be
30T, the numeric feed dial set to 1, and the alpha
feed dial set to A (see Figure 56).
Figure 58 shows the threads per inch (TPI) on the
applicable chart.
Threads
Per Inch
(TPI)
Longitudinal
Feed Icon
30T Gear in
G Position
Numeric Feed
Dial Set to 1
Figure 58. Numbers in dotted line indicate the
Feed Rate
.0016 in/rev.
TPI or threads per inch.
Figure 59 identifies the end gears on the upper,
middle, and lower shafts. The gears are repre-
sented by letters.
Alpha Feed
Dial Set to A
Figure 55. Reading feed chart.
Upper Shaft Gears
Middle Shaft Gears
Lower Shaft Gears
Numeric
Feed Dial
Alpha
Feed
Dial
G Position
Gear 30T
Figure 59. Identification of gears on shafts.
Figure 56. Feed dial and gear settings for
0.0016 in/rev.
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Figure 60 shows how the gearing illustration in
the thread chart relates to the end gears.
Power Feed
The carriage has power feed (or automatic feed)
options for threading or non-threading operations.
This section describes how to use the power feed
option for non-threading operations. To learn how
to power the carriage for threading operations,
refer to Threading on Page 49.
To avoid damaging lathe, NEVER allow
cutting tool to run into chuck! ALWAYS
make sure spindle is completely stopped
BEFORE using headstock controls to make
changes.
Figure 60. Power feed gearing setup.
Power Feed Controls
Use the following descriptions and figures to
understand the power feed controls.
Before using power feed, you may have to recon-
figure the end gears, depending on how they are
set up (refer to Power Feed Configuration on
Page 45). The lathe comes from the factory with
the end gears set up in the power feed configura-
tion.
A. Spindle Direction Switch: Enables forward
or reverse carriage travel when feed direction
dial and half nut lever are engaged. The car-
riage will not move when the switch is in the
"0" position.
B
A
Figure 61. Spindle switch and feed rate chart.
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B. Feed Rate Chart: Displays dial settings for
selected feed rate (see Figure 62).
Setting Power Feed Rate
Follow the example below to better understand
how to set the lathe power feed.
Tools Needed
Qty
Hex Wrench 5mm.............................................. 1
Hex Wrench 8mm.............................................. 1
To set a feed rate of 0.0016 in/rev.:
1. DISCONNECT MACHINE FROM POWER!
2. Install 30T change gear in "G" position (see
Figure 64).
30T Change
Gear
Figure 62. Feed chart.
C. Half Nut Lever: Engages/disengages half
nut for power feed operations.
0.0016 in/rev.
C
Figure 64. Reading feed chart for .0016 in/rev.
3. Set gearbox dials to positions "A" and "1", as
shown in Figure 65.
Figure 63. Half nut lever.
To avoid potential carriage/chuck crash,
disengage half nut lever immediately after
completing power feed operations.
Figure 65. Gearbox dial settings for .0016 in/rev.
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Secondary Threading Configuration
End Gears
This configuration is used for metric and 19TPI
threading. Mesh the "G" position gear with the
91T change gear, and mesh the 86T change gear
with the 90T gear on the lower shaft, as shown in
Figure 68.
This section explains how to configure end gears
for feeding and threading operations.
Power Feed Configuration
The end gears are preset by the factory for power
feeding (see Figure 66).
"G" Position
Gear 30T
(Upper Shaft)
Gear 91T
(Middle Shaft)
Gear 90T
(Lower Shaft)
Figure 66. Gearing configuration for power
feeding.
Primary Threading Configuration
This configuration is used for all inch threading
except for 19TPI. Mesh the "G" position gear with
the 91T change gear, and mesh the 91T change
gear with the 90T gear on the lower shaft, as
shown in Figure 67.
Figure 68. End gear configuration for metric and
19TPI threading.
Figure 67. End gear configuration for inch
threading.
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5. Loosen 86T/91T gear support shaft and slide
middle gear away from lower position gear
(see Figure 71).
End-Gear Configuration Example
Follow the example below to better understand
how to configure the end gears for inch threading.
Tools Needed
Qty
Hex Wrench 5mm.............................................. 1
Hex Wrench 6mm.............................................. 1
Hex Wrench 8mm.............................................. 1
Open-End Wrench 19mm.................................. 1
30T Gear
91T Gear
Gear-Support
Shaft
To configure end gears for threading 72 TPI:
86T Gear
1. Locate 72 on the metric thread chart, then
locate the 30 "G" position gear (see Figure
69), which corresponds to 1.5 metric thread
pitch.
Arm-Support
Cap Screw
90T Gear
Figure 71. End gear placement.
30T Gear
72 TPI
6. Remove cap screw and flat washer from "G"
position, position gear, then slide gears off of
shaft.
7. Slide 30T gear onto "G" position shaft, mak-
ing sure to align the key and keyway.
Note: Position the flat, non-stepped face of
the gear away from the headstock so it will
mesh with the 91T gear in Step 11.
Figure 69. Locating change gears for 72 TPI.
2. DISCONNECT LATHE FROM POWER!
3. Open headstock end gear cover.
8. Secure 30T gear with flat washers and cap
screws removed earlier.
9. Slide 91T gear against lower 90T gear (see
Figure 72) until they mesh with 0.002" to
0.004" backlash, then tighten gear support
shaft
4. While holding 86T/91T gears, loosen arm
support cap screw shown in Figure 70, and
slowly let gears pivot down and away from
"G" position gear.
"G" Position
Gear
30T Gear
91T Gear
Gear-Support
Shaft
86T/91T
Gears
86T Gear
Arm
Support
Arm-Support
Cap Screw
Lower
Position
Gear 90T
90T Gear
Arm Support
Cap Screw
Figure 70. Arm support and end gears.
Figure 72. 30T gear installed.
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10. Rotate the 91T gear up against the 30T gear
until they mesh with 0.002" to 0.004" back-
lash and re-tighten arm support cap screw
(see Figure 73).
To configure end gears for reverse feed/
reverse threading operations:
1. DISCONNECT LATHE FROM POWER!
2. Open headstock end gear cover.
3. Loosen upper arm support cap screw shown
in Figure 74.
30T Gear
Gear-Support
Shaft
4. Pivot upper arm-support up so 2nd upper
arm gear and spindle gear mesh with 0.002"
to 0.004" backlash, then tighten upper arm-
support cap screw (see Figure 75).
91T Gear
86T Gear
Arm-Support
Cap Screw
90T Gear
Upper
Arm-Support
Spindle Gear
(Behind Spindle
Pulley)
Upper
Arm-Support
Cap Screw
Figure 73. Inch threading gear configuration.
11. Re-install end-gear cover.
2nd Upper
End Gear
Reverse Feed & Threading
Configuration
For reverse feeding operations, the upper end-
gear arm support (see Figure 74) must be repo-
sitioned so the 2nd upper end-gear meshes with
the spindle gear.
1st Upper
End Gear
Upper
Arm-Support
Handle
Tools Needed
Qty
Hex Wrench 6mm.............................................. 1
Figure 75. Reverse threading gearing
configuration.
Spindle Gear
2nd Upper
5. Re-install end gear cover.
End Gear
1st Upper
End Gear
Upper Arm
Support Cap
Screw
Upper Arm
Support
Upper Arm
Support
Handle
Figure 74. Reverse threading end gear
components.
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3. Locate A above 72 TPI and find 1 to the left
Threading
of it.
Note: In the next step, use the chuck key to
rock the spindle back-and-forth to help mesh
the gears as you make adjustments.
When threading, use slowest speed pos-
sible and avoid deep cuts, so you are able to
disengage half nut when required to prevent
a carriage crash!
4. Position gearbox dials, as shown in Figure
77.
The following subsections will describe how to
use the threading controls and charts to set up the
lathe for a threading operation. If you are unfamil-
iar with the process of cutting threads on a lathe,
we strongly recommend that you read books,
review industry trade magazines, or get formal
training before attempting any threading projects.
Headstock Threading Controls
The threading charts on the headstock face dis-
play the settings for inch and metric threading.
Figure 77. Gearbox dial settings for 72 TPI.
The lathe is now setup to cut 72 TPI threads.
Using the controls on the lathe, follow the exam-
ple below to understand how to set up the lathe
for the desired threading operation.
Apron Threading Controls
The half nut lever engages the carriage with the
leadscrew, which moves the carriage and cutting
tool along the length of the workpiece for thread-
ing operations (see Figure 78).
To set dials for 72 TPI:
1. Arrange gears in Primary Threading
Configuration, with 30T gear in "G" position,
as explained on Page 46.
2. Locate 72 TPI on the inch threading chart
below.
Half Nut
Lever
Thread Dial
Alpha Dial
Numeric Dial 72 TPI
Engaged
Disengaged
Figure 76. 72 TPI and corresponding dial
Figure 78. Apron threading controls.
positions.
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To change thread dial gears:
Thread Dial
When the number "0" on the thread dial (Figure
79) aligns with the scale mark, this indicates when
to engage the half nut during inch threading.
1. Loosen both cap screws shown in Figure 79
and remove thread dial.
2. Remove Phillips head screw shown in Figure
80, remove existing gear from thread dial,
and replace with correct gear for threading
operation.
Scale Mark
3. Replace Phillips head screw and re-install
thread dial, making sure teeth of thread dial
gear mesh with lead screw.
x2
Thread Dial Chart
Gear
To cut standard threads, only use the 28T gear.
To cut metric threads, consult the thread dial chart
in Figure 81 to determine which gear to use and
when to engage half nut.
Figure 79. Thread dial details.
Note: The thread dial is not used for metric
threading. For that type of operation, you must
leave the half nut engaged from the beginning
until turning is complete.
Thread Pitch
0.25
0.5
Gear
Z28 or Z30
Z28 or Z30
Z28 or Z30
Z30
Dial Mark
Any
Any
Any
0
When the first cutting pass is complete, the opera-
tor disengages the carriage from the leadscrew
using the half nut lever. The operator returns the
carriage for the next pass and re-engages the half
nut using the same thread dial setting to resume
the cut in the previous pass.
1.0
1.25
2.5
Z30
0
0.3
Z28 or Z30
Z28 or Z30
Z28 or Z30
Z28
Any
Any
Any
0
0.6
1.5
Thread Dial Gears
The G0773 thread dial comes with a 28T gear
installed on the thread dial for cutting standard
threads. A 30T gear is also included for cutting
some metric threads, but it must be installed in
place of the 28T thread dial gear before it can be
used (see Figure 80).
0.35
0.7
Z28
0
1.75
0.4
Z28
0
Z28 or Z30
0
0.8
2.0
Z28
0
0
Z28 or Z30
Gear 30T
For Metric
Threads
Thread Dial
Figure 81. Thread dial chart.
Gear 28T For
Inch Threads
Figure 80. Thread-dial change gears can be
exchanged for cutting either inch or metric
threads.
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SECTION 5: MILL OPERATIONS
Operation Overview
To reduce risk of injury and increase
longevity of machine, always start spindle
rotation with spindle speed dial set to low-
est setting.
The purpose of this overview is to provide the nov-
ice machine operator with a basic understanding
of how the machine is used during operation, so
the machine controls/components discussed later
in this manual are easier to understand.
To complete a typical milling operation, the
operator does the following:
Due to the generic nature of this overview, it is
not intended to be an instructional guide. To learn
1. Puts on personal protective equipment.
more about specific operations, read this entire
manual and seek additional training from expe-
2. Securely clamps workpiece to cross slide
rienced machine operators, and do additional
table.
research outside of this manual by reading "how-
to" books, trade magazines, or websites.
3. With machine disconnected from power,
installs correct tooling.
4. Adjusts mill headstock height.
To reduce your risk of
5. Connects machine to power.
serious injury, read this
entire manual BEFORE
using machine.
6. Rotates spindle speed dial to lowest setting,
and resets Emergency Stop button.
7. Presses ON button and rotates spindle speed
dial to correct spindle speed.
To reduce risk of eye or face injury from
flying chips, always wear approved safety
glasses and face shield when operating this
machine.
8. Uses carriage and cross slide controls to per-
form operation.
9. Presses Emergency Stop button and waits
for spindle to completely stop before remov-
ing workpiece, changing tooling, or changing
spindle speeds.
If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any proj-
ects. Regardless of the content in this sec-
tion, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
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Headstock
Movement
Removing
Compound Rest
The milling headstock moves in the following
ways:
The compound rest and tool post must be removed
before milling operations so the cross-slide table
can be used as the milling table.
•
•
Travels up and down the column (Z-axis).
Tilts 45° left or right relative to the table.
Tools Needed
Qty
Hex Wrench 3mm.............................................. 1
Hex Wrench 4mm.............................................. 1
Raising/Lowering Headstock
1. Loosen Z-axis lock lever shown in Figure 84.
Removing Compound Rest
Remove both cap screws shown in Figure 82,
then remove compound rest.
Z-Axis
Lock
Lever
Figure 84. Location of Z-axis lock lever.
2. Use the coarse vertical handwheel shown
in Figure 85 to adjust headstock height and
relative position of cutting tool before cutting.
x 2
Figure 82. Location of compound rest cap
screws.
Vertical
Handwheel
Re-installing Compound Rest
Align compound rest with swivel base mounting
post and M8-1.25 T-nuts (see Figure 83), then
secure with cap screws previously removed.
Mounting Post
Fine Vertical
Handwheel
Figure 85. Location of mill headstock vertical
controls.
3. Use the fine vertical handwheel shown in
Figure 85 for precision vertical adjustment
during milling operations.
x2
Figure 83. Swivel base components.
4. Retighten lock lever.
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These movements are controlled by the car-
riage handwheel and cross slide handwheel (see
Figure 88).
Tilting Headstock
Tool Needed
Wrench 36mm................................................... 1
Qty
To tilt headstock:
1. DISCONNECT MACHINE FROM POWER!
Cross Slide
Table
2. Support headstock with one hand, then loos-
en headstock center bolt and angle lock nut
(see Figure 86).
Cross Slide
Handwheel
(Y-Axis)
Carriage
Handwheel
(X-Axis)
Figure 88. Table travel controls.
Carriage Handwheel (X-Axis)
Graduated Dial
Increments................................... 0.01" (0.25mm)
Angle Lock
Nut
One Full Revolution..........................1" (25.4mm)
Figure 86. Headstock tilt controls.
Use the carriage handwheel to move the carriage
left or right along the bed. Adjust the position of
the graduated scale by holding the handwheel
with one hand and turning the dial with the other.
3. While viewing tilt scale, rotate headstock to
required angle, then retighten center bolt and
angle lock nut to secure headstock.
Cross Slide Handwheel (Y-Axis)
Graduated Dial
Increments............................... 0.001" (0.025mm)
Table Travel
One Full Revolution.....................0.08" (2.03mm)
The cross slide table travels in two directions, as
illustrated in Figure 87:
Use this handwheel to move the cross slide table
toward or away from the tooling. The cross slide
handwheel has an indirect-read graduated dial,
which shows the actual distance the table moves.
•
•
X-axis (longitudinal)
Y-axis (cross)
X-Axis or Longitudinal Travel (Left & Right)
Y-Axis or
Cross Travel
(In & Out)
Figure 87. Possible directions of cross slide
travel.
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3. Insert tooling (not included) into spindle until
Installing/Removing
Tooling
in contacts drawbar.
4. Working from the top, thread drawbar by
hand into tooling until snug (see Figure 90).
Cutting tools are sharp and
can easily cause cutting
injuries. Always protect
your hands with leather
gloves or shop rags when
handling cutting tools.
Installing Tooling
Tools Needed
Qty
Wrench 17mm.................................................... 1
Spindle Locking Pin........................................... 1
Figure 90. Threading drawbar into tooling.
5. Insert spindle locking pin into hole in spindle,
and tighten drawbar, as shown in Figure 91.
To install tooling:
1. DISCONNECT MACHINE FROM POWER!
2. Remove drawbar cap (see Figure 89).
Note: Do not overtighten drawbar.
Overtightening makes tool removal difficult
and may damage arbor and threads.
Drawbar Cap
Figure 89. Location of drawbar cap.
Spindle
Locking Pin
Figure 91. Tightening drawbar lock nut.
6. Re-install drawbar cap.
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5. Tap top of drawbar with hammer to unseat
taper (see Figure 92).
Removing Tooling
Tools Needed
Qty
Wrench 17mm.................................................... 1
Spindle Locking Pin........................................... 1
Brass Hammer .................................................. 1
To remove tooling:
1. DISCONNECT MACHINE FROM POWER!
2. Remove drawbar cap.
3. Insert spindle locking pin into spindle, and
loosen drawbar (see Figure 91 on Page 54).
4. Unthread drawbar from tooling one full rota-
Figure 92. Example of tapping drawbar to
tion.
unseat tool taper.
Note: Do not fully unthread tooling from
drawbar or the drawbar and tool threads
could be damaged in the next step.
6. Hold onto tooling with one hand and fully
unthread drawbar with the other hand.
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Setting Spindle Speed
1. Set Lathe/Mill selector switch to 2 for milling
operations (see Figure 94).
Spindle Speed
Using the correct spindle speed is important for
safe and satisfactory results, as well as maximiz-
ing tool life.
Lathe/Mill
Selector Switch
To set the mill spindle speed for operation, you
will need to: 1) Determine the best spindle speed
for the cutting/drilling task, and 2) use the spindle
speed dial to obtain the spindle speed.
Determining Spindle Speed
Many variables affect the optimum spindle speed
to use for any given operation, but the two most
important are the recommended cutting speed
for the workpiece material and the diameter of
the cutting tool, as noted in the formula shown in
Figure 93.
Figure 94. Location of lathe/mill selector switch.
2. Rotate variable-speed dial (see Figure 95)
clockwise to select mill speed from 100–
2500 RPM. Rotate dial further clockwise
to increase speed or counterclockwise to
decrease speed.
*Recommended
Spindle
Speed
(RPM)
Cutting Speed (FPM) x 12
=
Tool Dia. (in inches) x 3.14
*Double if using carbide cutting tool
Figure 93. Spindle speed formula for mill/drills.
Cutting speed, typically defined in feet per minute
(FPM), is the speed at which the edge of a tool
moves across the material surface.
A recommended cutting speed is an ideal speed
for cutting a type of material in order to produce
the desired finish and optimize tool life.
Variable-Speed Dial
Figure 95. Location of milling head variable-
The books Machinery’s Handbook or Machine
Shop Practice, and some internet sites, pro-
vide excellent recommendations for which cutting
speeds to use when calculating the spindle speed.
These sources also provide a wealth of additional
information about the variables that affect cutting
speed and they are a good educational resource.
speed dial.
Also, there are a large number of easy-to-use
spindle speed calculators that can be found on
the internet. These sources will help you take into
account the applicable variables in order to deter-
mine the best spindle speed for the operation.
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ACCESSORIES
SECTION 6: ACCESSORIES
H2987—½" Bent Lathe Dog
H2988—1" Bent Lathe Dog
H2989—1½" Bent Lathe Dog
H2990—2" Bent Lathe Dog
H2991—3" Bent Lathe Dog
Installing unapproved accessories may
cause machine to malfunction, resulting in
serious personal injury or machine damage.
To reduce this risk, only install accessories
recommended for this machine by Grizzly.
NOTICE
Refer to our website or latest catalog for
additional recommended accessories.
T10294—11 Pc. Carbide Bit Set 1⁄2
"
1
This ⁄2" shank, 7-piece turning tool set is ideal
for a wide variety of projects. Supplied with right
hand and left hand turning/facing tool holders, the
set is complimented with one threading and one
cut-off tool, too. Indexable inserts ensure cutting
surfaces stay sharp.
Figure 97. Model H2990 1⁄2" Bent Lathe Dog.
SB1365—South Bend Lathe Way Oil, 12 oz.
T23962—ISO 68 Moly-D Way Oil, 5 gal.
T23963—ISO 32 Moly-D Machine Oil, 5 gal.
T23964—Moly-D NLGI#2 Grease.
Moly-D oils are some of the best we've found for
maintaining the critical components of machinery
because they tend to resist run-off and maintain
their lubricity under a variety of conditions—as
well as reduce chatter or slip. Buy in bulk and
save with 5-gallon quantities.
Figure 96. Model T10294 7-Pc. carbide-tipped
tool set.
SB1235
T23963
T23964
Figure 98. 12 oz. way oil & 5 gallon machine oil.
order online at www.grizzly.com or call 1-800-523-4777
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G1070—MT3 Live Center Set
H6202—1/2" x JT3 High-Precision Drill Chuck
H6204—5/8" x JT3 High-Precision Drill Chuck
G1675—Drill Chuck Arbor - R-8/JT3
A super blend of quality and convenience, this
live center set offers seven interchangeable tips.
High-quality needle bearings prolong tool life
and special tool steel body and tips are precision
ground. Supplied in wooden box.
G1677—Drill Chuck Arbor - MT3/JT3
Unlike most keyed drill chucks, Models H6202
and H6204 are made to very tight tolerances on
CNC equipment and are some of the finest drill
chucks on the market today. They have very high
gripping strength and are suitable for heavy-duty,
high speed drilling. Each chuck includes a high
visibility chuck key. Drill chuck arbors are used to
adapt drill chucks to your milling machine or lathe.
Figure 99. G1070 Live Center Set.
G1677
H6204
H5930—4-Pc. Center Drill Set 60°
H5931—4-Pc. Center Drill Set 82°
Double-ended HSS Center Drills are precision
Figure 101. High-precision drill chuck and drill
chuck arbor.
ground. Each set includes sizes 1–4.
G9788—4-Pc. Measuring Tool Set
BODY
DIA.
DRILL OVERALL
This is the set you need for accurate measure-
ments. Includes a stainless steel 6" dial caliper, a
6" scale with inch scale on one side and a metric
scale on the other, a 1" carbide-tipped microm-
eter with vernier scale, and a 4" precision square
with beveled edge. Comes with molded case and
micrometer adjustment wrench.
SIZE
DIA.
3⁄64"
5⁄64"
LENGTH
1
1
2
3
4
⁄8"
11⁄4
17⁄8
"
"
3⁄16"
1
7⁄64"
2"
⁄4"
5⁄16"
⁄8"
21⁄8
"
1
Figure 102. Model G9788 4-Pc. Measuring Tool
Figure 100. HSS ground center-drill sets.
Set.
order online at www.grizzly.com or call 1-800-523-4777
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T10253—2" Mini Self-Centering Swivel Vise
T10254—2" Mini Self-Centering Vise
H6195—3" Rotary Table w/ Clamps
For horizontal or vertical use. 3" diameter table
rotates 360°. Low profile—only 1.670" tall. 45⁄16"
T-slots. 1:36 ratio or 10° per handwheel revolution.
Scale reads to 15 minutes. Has brass lock knob.
Table height in horizontal position: 15⁄8";
in vertical position: 31⁄4".
Ideal for holding small parts and model making.
Both models feature self-centering jaws, adjust-
able gib on a dovetailed way, 21⁄16" jaw opening,
and 2" jaw width. T10253 base swivels 360°, and
overall size is 63⁄4" L x 4" W x 33⁄8" H with handle
removed. T10254 overall size is 61⁄2" L x 31⁄2" W x
23⁄8" H with handle removed.
T10253
T10254
Figure 105. Model H6195 3" Rotary Table w/
Clamps.
Figure 103. Mini Self-Centering Vises.
R-8 End Mill Holders
4-Flute C-2 Grade Carbide End Mills
Hold your end mills in the Model G0773 spindle
with these quality end mill holders. Sized for vari-
ous end mill shanks.
These American-made 4-flute Carbide End Mills
feature standard cutting lengths and nominal
minus diameter tolerances. Recommended for
profiling and finishing non-ferrous materials.
Model
T25697
T25698
T25699
T25700
T25701
Taper
R-8
Size
3⁄16"
Cutting
Diameter
Flute
Length
3
R-8
⁄
⁄
⁄
8
2
8
"
"
"
Model
OA Length
1
5
R-8
1
H3649
H3650
H3651
H3652
H3653
H3654
H3655
H3656
H3657
H3658
H3659
H3660
1⁄16"
3⁄32"
3⁄16"
1 ⁄2
"
"
"
R-8
3
1
⁄
⁄
8
"
"
1 ⁄2
3
R-8
⁄4"
1
1
1
⁄
8
"
2
1 ⁄2
5⁄32"
3⁄16"
7⁄32"
9⁄16"
2"
2"
5
⁄
⁄
8
"
"
T25697
5
3
3
8
21⁄2
21⁄2
21⁄2
21⁄2
21⁄2
23⁄4
3"
"
"
"
"
"
"
1
⁄4"
⁄
4"
9⁄32"
5⁄16"
⁄
4"
13⁄16"
3
7
⁄
8
"
⁄
8
"
T25700
7⁄16"
1"
1"
1
⁄
2
"
Figure 106. R-8 end mill holders.
Figure 104. 4-Flute C-2 grade carbide end mills.
order online at www.grizzly.com or call 1-800-523-4777
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G9274—6" Stainless Steel Outside Calipers
G9275—8” Stainless Steel Outside Calipers
G9276—10” Stainless Steel Outside Calipers
G9277—12” Stainless Steel Outside Calipers
G9278—16” Stainless Steel Outside Calipers
Spring Calipers with quick adjustment nut provide
fast determination of external measurements.
Ideal for physically transferring dimensions from
originals. Five different sizes allow you to match
the best caliper for your shop needs.
H7616—Oil Can w/Plastic Nozzle
This high-pressure oil can is perfect for lubricating
the ball oilers found on your machine. Each can
holds 5 ounces of oil.
Figure 109. High-pressure oil can for ball oilers.
H6879—Lathe Operation & Maintenance Book
This detailed metal lathe book provides extensive
coverage of a wide variety of metalworking opera-
tions. Special emphasis is placed on lathe com-
ponents, accessories, and operating procedures,
including basic machine setup and routine main-
tenance. A "must have" reference for all metal
lathe owners. 260 pages.
Figure 107. G9274 16" Stainless Steel Calipers.
T10255—Mini Lathe Tool Kit
Includes right, left, and straight turning tool hold-
1
ers with ⁄8" HSS tool bits, boring bar with holder
1
3
and ⁄8" HSS tool bit, cut off tool holder with ⁄32"
HSS blade and 3⁄8" shank, mini cut off tool holder
1
5
with ⁄16" HSS blade and ⁄16" shank, knurling tool
holder with pivoting head, single horizontal/verti-
cal knurling tool holder and assorted hex wrench-
es. Maximum shank size is 1⁄2".
Figure 110. H6879 Lathe Operation &
Maintenance Book.
Figure 108. T10255 Mini Lathe Tool Kit.
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SECTION 7: MAINTENANCE
Daily, After Operations
•
•
•
Press the Emergency Stop button (to prevent
accidental startup).
Vacuum/clean all chips and swarf from bed,
slides.
Wipe down all unpainted or machined sur-
faces with an oiled rag.
Always disconnect power
to the machine before
performing maintenance.
Failure to do this may
result in serious person-
al injury.
Annually
•
Lubricate end gears (Page 65).
Schedule
Cleaning/Protecting
Ongoing
To maintain a low risk of injury and proper
machine operation, if you ever observe any of the
items below, shut down the machine immediately
and fix the problem before continuing operations:
Because of its importance, we recommend that
the cleaning routine be planned into the workflow
schedule.
•
•
•
•
Loose mounting bolts or fasteners.
Worn, frayed, cracked, or damaged wires.
Guards or covers removed.
Emergency Stop button not working correctly
or not requiring you to reset it before starting
the machine again.
Typically, the easiest way to clean swarf from the
machine is to use a brush and wet/dry shop vacu-
um that are dedicated for this purpose. The small
chips left over after vacuuming can be wiped up
with a slightly oiled rag. Avoid using compressed
air to blow off chips, as this may drive them deep-
er into the moving surfaces or cause sharp chips
to fly into your face or hands.
•
Damaged or malfunctioning components.
Daily, Before Operations
•
•
Add oil to the ball oilers (Page 62).
Lubricate the leadscrew and carriage rack
(Page 63).
Lubricate the bedways (Page 63).
Clean/lubricate the cross slide and com-
pound slide (Page 63).
All unpainted and machined surfaces should be
wiped down daily to keep them rust free and in top
condition. This includes any surface that is vulner-
able to rust if left unprotected. Use a quality ISO
68 way oil (see Page 57 for offerings from Grizzly)
to prevent corrosion.
•
•
•
•
Disengage the half nut on the carriage (to
prevent crashes upon startup).
Lubricate column ways (Page 66).
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Items Needed
Qty
Lubrication
Clean Rags........................................ As Needed
Mineral Spirits.................................... As Needed
Stiff Brush.......................................................... 1
Pump-Type Oil Can w/Plastic Cone Tip ............ 1
The lathe has metal-to-metal sliding surfaces that
require regular lubrication to maintain smooth
movement and ensure long-lasting precision.
Ball Oilers
Lube Type...............................ISO 32 Equivalent
Lube Amount............................1 or 2 Squirts/Fill
Lubrication Frequency................................. Daily
Other than the lubrication points covered in this
section, all other bearings are internally lubricated
and sealed at the factory. Simply leave them
alone unless they need to be replaced.
This lathe has four ball oilers that should be oiled
on a daily basis before beginning operation.
Before performing any lubrication task,
DISCONNECT MACHINE FROM POWER!
Proper lubrication of ball oilers is done with a
pump-type oil can that has a plastic or rubber-
ized cone tip. We do not recommend using metal
needle or lance tips, as they can push the ball too
far into the oiler, break the spring seat, and lodge
the ball in the oil galley.
We recommend using Model SB1365 Way Oil,
T23963 Machine Oil, and T23964 Multi-Purpose
Grease or equivalents (see Page 57) for most
lubrication tasks.
Lubrication Frequency
Lubricate the ball oilers before and after machine
use, and more frequently under heavy use. When
lubricating ball oilers, first clean the outside sur-
face to remove any dust or grime. Push the tip of
the oil can nozzle against the ball oiler to create
a hydraulic seal, then pump the oil can once or
twice. If you see sludge and contaminants coming
out of the lubrication area, keep pumping the oil
can until the oil runs clear. When finished, wipe
away any excess oil.
Lubrication Task
Frequency Page
This
Daily
Ball Oilers
Page
Leadscrew & Carriage
Rack
Daily
63
Bedways
Daily
63
64
Feed Gearbox
Annually
Cross Slide & Compound
Slide
Daily
64
End Gears
Annually
Daily
65
66
Mill Column Ways
NOTICE
The recommended lubrication is based on
light-to-medium usage. Since lubrication
helps to protect value and operation of
machine, these lubrication tasks may need
to be performed more frequently than rec-
ommended, depending on usage.
Failure to follow reasonable lubrication
practices as instructed in this manual could
lead to premature failure of machine com-
ponents and will void the warranty.
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Refer to Figures 111–113 to find the location of
each ball oiler.
Leadscrew & Carriage Rack
Lube Type. . Model SB1365 or ISO 68 Equivalent
Lube Amount..................................... As Needed
Lubrication Frequency................................. Daily
Before lubricating the leadscrew and carriage
rack (see Figure 114), clean them first with min-
eral spirits. Use a stiff brush to help remove any
debris or grime. Apply a thin coat of oil along the
entire length of the carriage rack. Use a stiff brush
to make sure oil is applied into the leadscrew
threads.
Note: In some environments, abrasive material
can become caught in the leadscrew lubricant and
drawn into the half nut. In this case, lubricate the
leadscrew with a quality dry lubricant.
Figure 111. Apron ball oilers.
Bedways
Leadscrew
Rack
Figure 112. Tailstock and leadscrew end ball
Figure 114. Identification of leadscrew, rack, and
oilers.
bedways for lubrication.
Bedways
Lube Type. . Model SB1365 or ISO 68 Equivalent
Lube Amount..................................... As Needed
Lubrication Frequency................................. Daily
Before lubricating the bedways (see Figure 114),
clean them with mineral spirits. Apply a thin coat
of oil along the length of the bedways. Move the
steady rest, carriage, and tailstock to access the
entire length of the bedways.
Figure 113. End gear ball oilers.
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Feed Gearbox
Cross Slide & Compound Slide
Lube Type. . Model SB1365 or ISO 68 Equivalent
Lube Amount........................................Thin Coat
Lubrication Frequency................................. Daily
Oil Type.... Grizzly T23963 or ISO 32 Equivalent
Oil Amount............................................... 1 Quart
Check/Add Frequency................................. Daily
Change Frequency................................ Annually
Use the handwheels to separately move the
cross slide and compound rest as far forward as
possible (see Figure 116). Clean the slides with
mineral spirits and wipe down with a rag. Apply
lubricant and move the slides back and forth to
distribute the oil.
Checking Oil Level
The gearbox reservoir has the proper amount of
oil when the oil level in the sight glass is approxi-
mately halfway. The oil sight glass is located on
the front of the gearbox, as shown in Figure 115.
Compound
Bottom Slide
Fill Plug
Drain Plug
Gearbox Oil
Sight Glass
Figure 115. Location of quick-change oil sight
glass and fill plug.
Cross Slide
Bottom Slide
Changing Oil
Place a catch pan under the quick-change gear-
box drain plug (see Figure 115). Use an 8mm
hex wrench to remove the gearbox fill plug, then
remove the drain plug and allow the gearbox res-
ervoir to empty. Re-install the drain plug and add
oil until the level is approximately halfway in the
gearbox oil sight glass, then re-install the fill plug.
Figure 116. Example of bottom slides.
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Lubricating
1. DISCONNECT MACHINE FROM POWER!
End Gears
Lube Type. . Model T23964 or NLGI#2 Equivalent
Frequency............... Annually or When Changing
2. Remove end gear cover and all end gears
shown in Figure 117.
The end gears, shown in Figure 117, should
always have a thin coat of heavy grease to
minimize corrosion, noise, and wear. Wipe away
excess grease that could be thrown onto the
V-belts and reduce optimal power transmission
from the motor.
3. Clean end gears thoroughly with mineral spir-
its to remove old grease. Use a small brush if
necessary to clean between teeth.
4. Clean shafts, and wipe away any grease
splatters in vicinity and on inside of end
cover.
5. Using a clean brush, apply a thin layer of
white lithium grease on the gears. Make sure
to get grease between gear teeth, but do not
fill teeth valleys.
6. Apply a small dab of grease to each gear
shaft.
7. Install end gears and mesh them together
with an approximate 0.002"–0.004" backlash.
Once gears are meshed together, apply a
small dab of grease between them where
they mesh together—this grease will be dis-
tributed when gears rotate and re-coat any
areas scraped off during installation.
Figure 117. End gears.
Handling & Care
Make sure to clean and lubricate any gears you
install or change. Be very careful during handling
and storage—the grease coating on the gears will
easily pickup dirt or debris, which can then spread
to the other gears and increase the rate of wear.
8. Re-install end cover before re-connecting
machine to power.
Make sure the end cover remains installed when-
ever possible to keep the gears free of dust or
debris from the outside environment.
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Column Rack
Lube Type. . Model SB1365 or ISO 68 Equivalent
Lube Amount........................................Thin Coat
Lubrication Frequency................................. Daily
Machine Storage
To prevent the development of rust and corrosion,
the lathe must be properly prepared if it will be
stored for a long period of time. Doing this will
ensure the lathe remains in good condition for
later use.
Regular lubrication will ensure your milling head-
stock performs at its highest potential. Regularly
wipe table and column rack with recommended
lubrication, then move components back and
forth several times to ensure smooth movements
(see Figure 118).
Preparing Machine for Storage
1. DISCONNECT MACHINE FROM POWER!
2. Thoroughly clean all unpainted, bare metal
surfaces, then apply a liberal coat of way
oil, heavy grease, or rust preventative. Take
care to ensure these surfaces are completely
covered and that rust preventative or grease
is kept off of painted surfaces.
3. Lubricate machine as outlined in lubrication
section. Be sure to use an oil can to purge all
ball oilers and oil passages with fresh oil.
4. Place a few moisture absorbing desiccant
packs inside electrical box.
Figure 118. Column Rack lubrication location.
5. Cover machine and place it in a dry area that
is out of direct sunlight and away from haz-
ardous fumes, paint, solvents, or gas. Fumes
and sunlight can bleach or discolor paint.
6. Every few months, rotate by hand all gear-
driven components a few times in several
gear selections. This will keep bearings,
bushings, gears, and shafts well lubricated
and protected from corrosion—especially
during winter months.
Slide carriage, tailstock, and steady rest
down lathe bed to make sure that way spot-
ting is not beginning to occur. Move mill
headstock up and down column.
Bringing Machine Out of Storage
1. Remove moisture-absorbing desiccant packs
from electrical box.
2. Repeat Test Run and Spindle Break-In pro-
cedures, beginning on Page 24.
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SECTION 8: SERVICE
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
Troubleshooting
Motor & Electrical
Symptom
Possible Cause
Possible Solution
Machine does not
start or a circuit
breaker trips.
1. Improper switch position at startup.
1. DISCONNECT MACHINE FROM POWER; follow
proper procedure for startup (see Page 24).
2. Ensure correct power supply voltage.
2. Incorrect power supply voltage.
3. Power supply circuit breaker tripped or fuse 3. Ensure circuit is sized correctly and free of shorts.
blown.
Reset circuit breaker or replace fuse.
4. Check/fix broken, disconnected, or corroded wires.
5. Test/replace switch.
4. Wiring open/has high resistance.
5. On/Off switch at fault.
6. Emergency stop button engaged or at fault. 6. Test/replace Emergency Stop button.
7. Spindle speed dial at fault.
8. Spindle direction switch at fault.
9. Lathe/mill selector switch at fault.
10. Spindle rotation switch at fault.
11. Motor at fault.
7. Test/replace dial.
8. Test/replace switch.
9. Test/replace switch.
10. Test/replace switch.
11. Test/repair/replace.
Machine stalls or is 1. Machine undersized for task.
underpowered.
1. Use sharp bits/chisels at correct angle; reduce feed
rate/depth of cut; use coolant if possible.
2. Tension/replace belts; ensure belts and pulleys are
clean and dry.
2. Belts slipping or contaminated with oil or
grease.
3. Wrong workpiece material.
4. Feed rate/cutting speed too fast.
5. Motor overheated.
3. Use correct type/size of metal.
4. Decrease feed rate/cutting speed.
5. Use sharp bits; reduce feed rate/depth of cut.
6. Clean motor, let cool, and reduce workload.
7. Test and replace if at fault.
6. Computer board at fault.
7. Motor speed dial at fault.
8. Pulley/sprocket slipping on shaft.
9. Motor bearings at fault.
8. Replace loose pulley/shaft.
9. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
10. Motor at fault.
10. Test/repair/replace.
Machine has
vibration or noisy
operation.
1. Motor or component loose.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. Bit chattering.
2. Replace/sharpen bit; index bit to workpiece; use
correct feed rate and cutting RPM; retract tool
holder and position workpiece closer.
3. V-belt(s) worn or loose.
3. Inspect/replace belts with a new matched set.
4. Fix/replace fan cover; replace loose/damaged fan.
5. Tighten/replace.
4. Motor fan rubbing on fan cover.
5. Motor mount loose/broken.
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Lathe Operation
Symptom
Possible Cause
Possible Solution
Bad surface finish.
1. Wrong spindle speed or feed rate.
2. Dull tooling or poor tool selection.
1. Adjust for appropriate spindle speed and feed rate.
2. Sharpen tooling or select a better tool for the
intended operation.
3. Tool height not at spindle centerline.
3. Adjust tool height to spindle centerline (see Page
39).
4. Too much play in gibs.
4. Tighten gibs (see Page 72).
Tapered tool difficult 1. Quill not fully retracted into tailstock.
to remove from
1. Turn quill handwheel until tapered tool is forced out
of quill.
tailstock quill.
2. Contaminants not removed from taper
before inserting into quill.
2. Clean taper and bore, then re-install tool.
Cross slide,
1. Ways loaded with shavings, dust, or grime. 1. Clean ways and relubricate.
compound rest, or
carriage feed has
sloppy operation.
2. Gibs are out of adjustment.
2. Adjust gibs (see Page 72).
3. Handwheel loose or excessive backlash.
3. Tighten handwheel fasteners, adjust handwheel
backlash to a minimum (see Page 71).
4. Adjust leadscrew to remove end play (see Page
71).
4. Leadscrew mechanism worn or out of
adjustment.
Cross slide,
compound,
or carriage
1. Ways loaded with chips, dust, or grime.
2. Gibs are too tight.
1. Clean ways and lubricate.
2. Loosen gibs slightly (see Page 72).
3. Slightly loosen backlash setting (see Page 71).
4. Lubricate bedways.
3. Backlash setting too tight.
handwheels hard to 4. Bedways are dry.
move.
5. Half nut lever engaged.
5. Disengage half nut lever for manual feeding.
Cutting tool
1. Tool holder not tight enough.
2. Cutting tool sticks too far out of tool holder; 2. Re-install cutting tool so no more than 1⁄3 of the total
1. Check for debris, clean, and retighten.
or machine
components vibrate
excessively during
cutting.
lack of support.
length is sticking out of tool holder.
3. Gibs are out of adjustment.
4. Dull cutting tool.
3. Adjust gibs at affected component (see Page 72).
4. Replace or resharpen cutting tool.
5. Incorrect spindle speed or feed rate.
5. Use the recommended spindle speed and feed rate.
Workpiece is
tapered.
1. Headstock and tailstock not properly
aligned.
1. Re-align tailstock to headstock spindle centerline
(see Page 34).
Chuck jaws will
not move or do not
move easily.
1. Chips lodged in jaws or scroll plate.
1. Remove jaws, clean and lubricate scroll plate, then
replace jaws.
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Mill Operation
Symptom
Possible Cause
Possible Solution
Tool slips in spindle. 1. Tool is not fully drawn up into spindle taper. 1. Tighten drawbar (Do not overtighten).
2. Debris on tool or in spindle taper.
3. Taking too big of cut.
2. Clean collet and spindle taper.
3. Lessen depth of cut and allow chips to clear.
Breaking tools or
cutters.
1. Spindle speed/feed rate is too fast.
1. Set spindle speed correctly (Page 56) or use slower
feed rate.
2. Cutting tool too small.
2. Use larger cutting tool and slower feed rate.
3. Use coolant fluid or oil for appropriate application if
possible.
3. Cutting tool getting too hot.
4. Taking too big of a cut.
4. Lessen depth of cut and allow chips to clear.
5. Fully retract spindle and lower headstock. This
increases rigidity.
5. Spindle extended too far down.
Workpiece vibrates 1. Workpiece not secure.
1. Properly clamp workpiece on table or in vise.
2. Set spindle speed correctly (Page 56) or use slower
feed rate.
or chatters during
operation.
2. Spindle speed/feed rate is too fast.
3. Spindle extended too far down.
3. Fully retract spindle and lower headstock. This
increases rigidity.
Cross slide table is
hard to move.
1. Chips have loaded up on ways.
1. Frequently clean away chips that load up during
milling operations.
2. Ways are dry and need lubrication.
3. Gibs are too tight.
2. Lubricate ways (Page 64).
3. Adjust gibs (see Page 72).
Bad surface finish.
1. Spindle speed/feed rate is too fast.
1. Set spindle speed correctly (Page 56) or use a
slower feed rate.
2. Using dull or incorrect cutting tool.
2. Sharpen cutting tool or select one that better suits
operation.
3. Wrong rotation of cutting tool.
4. Workpiece not secure.
3. Check for proper cutting rotation for cutting tool.
4. Properly clamp workpiece on table or in vise.
5. Fully retract spindle and lower headstock. This
increases rigidity.
5. Spindle extended too far down.
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The V-belt is correctly tensioned when there
is approximately ⁄8" deflection when pushed
with moderate pressure between the pulleys,
as shown in Figure 120.
1
Tensioning &
Replacing V-Belts
V-belts stretch and wear with use, so it is impor-
tant that tension is routinely checked and adjusted
as needed. Improperly tensioned V-belts will slip
or poorly transmit power from the motor. We rec-
ommend checking the tension on a monthly basis
to ensure optimal power transmission. Replace
the V-belt if it becomes cracked, frayed, or glazed.
Keep belts and pulleys clear of exposure to oil,
grease, or cutting fluids that will cause them to
slip.
Pulley
Deflection
1
⁄8
"
Pulley
Figure 120. Correct V-belt deflection.
Tool Needed
Qty
Hex Wrench 4mm.............................................. 1
1
—If there is more than ⁄8" deflection, adjust
tension until it is correct.
Tensioning V-Belts
1. DISCONNECT MACHINE FROM POWER!
5. Close end cover.
2. Open end cover.
Replacing V-Belts
1. DISCONNECT MACHINE FROM POWER!
3. Loosen tensioner hex bolt (see Figure 119).
2. Open end cover.
3. Loosen tensioner bolt (see Figure 119) to
relieve tension on V-belt.
4. Carefully roll V-belt off of pulleys.
V-Belt
5. Install new V-belt, then tension as described
in Tensioning V-Belts.
Tensioner
Figure 119. Tensioner bolt and V-belt.
4. Pivot tensioner (see Figure 119) against
V-belt to increase belt tension, then re-tighten
tensioner hex bolt.
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Adjusting Backlash Adjusting Leadscrew
End Play
Backlash is the amount of free play felt while
changing rotation directions with the handwheel.
A small amount of end play is normal, however
after a long period of time, you may find that the
leadscrew develops excessive end play. This can
be removed with a simple adjustment of the nuts
at the end of the leadscrew.
This can be adjusted on the cross slide leadscrew.
Before beginning any adjustment, make sure all
associated components are cleaned and lubri-
cated and locks are loose.
When adjusting backlash, tighten the components
enough to remove backlash, but not so much that
the components bind the leadscrew, making it
hard to turn. Overtightening will cause excessive
wear to the nut and leadscrew.
Tools Needed
Hex Wrench 6mm.............................................. 1
Open-End Wrench 19mm.................................. 1
Qty
To remove leadscrew end play:
1. DISCONNECT MACHINE FROM POWER!
2. Loosen jam nut shown in Figure 122.
Reducing backlash to less than 0.002" is
impractical and can lead to accelerated
wear in leadscrew and other components.
Avoid temptation to overtighten leadscrew
nut or set screw while adjusting.
Leadscrew
Retaining Nut
Cross Slide
Tool Needed:
Qty
Hex Wrench 4mm ............................................. 1
Jam Nut
End Bracket
The cross slide backlash is adjusted by tightening
and loosening the set screw shown in Figure 121.
Flat Washer
Figure 122. Leadscrew end play adjustments.
Set Screw
3. Using your fingers, tighten retaining nut until
it firmly pushes flat washer against end
bracket, then back retaining nut off 1⁄8 turn.
4. Hold retaining nut in position and tighten jam
nut against it until snug.
Figure 121. Example of cross slide backlash
adjustment.
Move the cross slide handwheel back and forth
while adjusting set screw until backlash is approx-
imately 0.002"–0.003", as indicated on the gradu-
ated dial.
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Adjusting Cross Slide & Compound
Slide Gibs
1. DISCONNECT MACHINE FROM POWER!
Adjusting Gibs
The goal of adjusting the gib screws is to remove
sloppiness or "play" from the ways without over-
adjusting them to the point where they become
stiff and difficult to move.
2. Loosen hex nuts on side of cross slide or
compound slide (see Figures 123).
In general, loose gibs cause poor finishes and
tool chatter; however, over-tightened gibs cause
premature wear and make it difficult to turn the
handwheels.
The cross-slide and compound slide both use a
straight gib, which is adjusted with cap screws
and hex nuts along its length. The screws push
the gib in to create more contact with the slid-
ing surfaces. The Z-axis ways use a tapered gib,
which is adjusted with screws on each end.
Figure 123. Gib adjustment hex nuts and cap
The gib adjustment process usually requires some
trial-and-error. Repeat the process as necessary
until you find the best balance between loose and
stiff movement. Most machinists find that the ideal
gib adjustment is one where a small amount of
drag or resistance is present, yet the handwheels
are still somewhat easy to move.
screws.
3. Adjust all corresponding cap screws in small
and equal increments while testing move-
ment of slide by rotating handwheel.
Note: Turn cap screws clockwise to tighten
the gib, or counterclockwise to loosen the gib.
Clean and lubricate the ways before beginning
any adjustments. Refer to Lubrication on Page
62 for instructions and lubricant specifications.
4. When satisfied with gib adjustment, use hex
wrench to prevent set screws from moving,
then retighten hex nuts to secure settings.
Tools Needed
Qty
Open-End Wrench 10mm.................................. 1
Hex Wrench 3mm.............................................. 1
Flat Head Screwdriver #2.................................. 1
5. Re-check movement of slide and, if neces-
sary, repeat Steps 2–4.
-72-
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3. Loosen gib nuts and adjust screws in small,
even increments so one end of the gib
does not become tighter than the other (see
Figure 124).
Adjusting Half Nut
The rigidity of the half nut engagement is adjusted
by tightening or loosening the half nut gib screws.
Adjust the half nut if it feels too loose or too tight
when being engaged. Movement that is too stiff
will accelerate wear. Movement that is too slop-
py will produce inaccurate turning or threading
results.
Gib Nuts &
Screws
Tools Needed
Qty
Open-End Wrench 7mm.................................... 1
Hex Wrench 3mm.............................................. 1
To adjust half nut:
Figure 124. Half nut gib adjustment set screws.
1. DISCONNECT MACHINE FROM POWER!
2. Disengage half nut.
4. Engage/disengage half nut several times and
notice how it feels. The adjustment is cor-
rect when half nut firmly and easily engages
leadscrew while opening and closing.
5. Repeat Steps 3–4, if necessary, until satis-
fied with feel of half nut engagement.
6. Re-tighten gib nuts to secure position of
adjustment screws.
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machine
SECTION 9: WIRING
These pages are current at the time of printing. However, in the spirit of improvement, we may make chang-
es to the electrical systems of future machines. Compare the manufacture date of your machine to the one
stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at
(570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated
wiring diagram may be available. Note: Please gather the serial number and manufacture date of your
machine before calling. This information can be found on the main machine label.
Wiring Safety Instructions
SHOCK HAZARD. Working on wiring that is con- WIRE/COMPONENT DAMAGE. Damaged wires
nected to a power source is extremely dangerous. or components increase the risk of serious per-
Touching electrified parts will result in personal sonal injury, fire, or machine damage. If you notice
injury including but not limited to severe burns, that any wires or components are damaged while
electrocution, or death. Disconnect the power performing a wiring task, replace those wires or
from the machine before servicing electrical com- components.
ponents!
MOTOR WIRING. The motor wiring shown in
MODIFICATIONS. Modifying the wiring beyond these diagrams is current at the time of printing
what is shown in the diagram may lead to unpre- but may not match your machine. If you find this
dictable results, including serious injury or fire. to be the case, use the wiring diagram inside the
This includes the installation of unapproved after- motor junction box.
market parts.
CAPACITORS/INVERTERS. Some capacitors
WIRE CONNECTIONS. All connections must and power inverters store an electrical charge for
be tight to prevent wires from loosening during up to 10 minutes after being disconnected from
machine operation. Double-check all wires dis- the power source. To reduce the risk of being
connected or connected during any wiring task to shocked, wait at least this long before working on
ensure tight connections.
capacitors.
CIRCUIT REQUIREMENTS. You MUST follow EXPERIENCING DIFFICULTIES. If you are expe-
the requirements at the beginning of this manual
riencing difficulties understanding the information
when connecting your machine to a power source. included in this section, contact our Technical
Support at (570) 546-9663.
The photos and diagrams
included in this section are
best viewed in color. You
can view these pages in
color at www.grizzly.com.
-74-
Model G0773 (Mfd. Since 12/14)
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Wiring Overview
BLDC Mill Motor
230V 2.8A
Mill Rear
Electrical Box
Emergency Stop
5
⁄
8
HP 5000 RPM
Mill
Safety Guard
Limit Switch
LED Fault
Indicator
Halogen Power
Indicator
Circuit Breaker
(Back Panel)
Chint NB1-63 D16
400V 16A
Variable-Speed Dial
Limit Switches
(Inside)
Lathe/Mill
Selector Switch
Halogen Power
Indicator
Emergency Stop
Spindle Direction
Switch
Lathe Motor
(Inside)
110V 11.6A
Single-Phase
1 HP 1700 RPM
READ ELECTRICAL SAFETY
ON PAGE 74!
-75-
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Wiring Diagram
Rd
Yl
Or
Br
Br
Yl
Rd
Or
Rd
Pu
Mill Speed
Control
Circuit Board
Rd
M
Pu
V
U
N
Halogen
Fault Indicator
LED (Yellow)
Power Indicator
BLDC
Mill/Drill
Motor
Pu
Or
Lamp (Green)
L
Rd
Yl
23
24
13
14
230V 2.8A
5/8 HP
5000 RPM
Gn
Wt
Rd
Br
A1
Gy
KEDU
KJD17B
120V
Pu
Rd
15AL
250V
Yl
Or
Gn
Wt
Br
Gy
Fuse
F10al250V
ZM 3405
Rd Tq Pk
Mill Switch Box
(Viewed from Front)
Gy
Br Or
DRO
Connector
KEDU QKS7
AC-15 250VAC
Mill Shield
Limit Switch
Br
Br
GND
GND
KEDU QKS7
AC-15 250VAC
Lathe Chuck Guard
Limit Switch
Br
Wt
Br
Mill Electrical Box
(Viewed from Rear)
KEDU QKS7
AC-15 250VAC
Change Gear Cabinet
Limit Switch
Neutral
Hot
110 VAC
5-15 Plug
Ground
3
3
3
1
L
Motor Cabinet
(Viewed from Rear)
1
7
6
1
L
7
6
5
L
N
N
N
Circuit Breaker
Chint NB1-63 D16
400V 16A
GND
GND
GND
ON
ON
5
U2
OFF
OFF
Halogen
Power Indicator
Lamp (Green)
Z2
V1
2
N
L
1
C C
C
C
110V
MOTOR
N
2
1
B2
A2
B1
A1
L
2
4
1
3
5
7
6
8
3
5
U1
4
KEDU
KEDU
GND
Gn
KEDU ZH-B
5E4
(Top)
ZHHCZA
EN609471
(Top)
KEDU ZH-B
5E4
(Bottom)
ZHHCZA
EN609471
(Bottom)
Z2
W2
8
U1
Start
V1
Bk
Capacitor
300MFD
125VAC
5
6
2
Bk
Bk
Run
Headstock Casting
(Viewed from Front)
Bk
KEDU
KJD17B
120V
Capacitor
25MFD
450VAC
U2
4
8
READ ELECTRICAL SAFETY
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-76-
Model G0773 (Mfd. Since 12/14)
Wiring Photos
Figure 125. Control panel.
Figure 128. Headstock casting.
Figure 126. Mill rear electrical box and switch
box.
Figure 129. Back panel.
Figure 127. Mill/drill motor.
Figure 130. Start and run capacitors.
READ ELECTRICAL SAFETY
ON PAGE 74!
-77-
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SECTION 10: PARTS
Accessories
24
15
13
23-2
23-1
17
24-1
16
18
26
23-3
4
22
23
2
10
3
7
5
6
8
12
11
9
20
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
2
P07730002
P07730003
P07730004
P07730005
P07730006
P07730007
P07730008
P07730009
P07730010
P07730011
P07730012
P07730013
P07730015
HEX WRENCH 3MM
16
17
18
20
22
23
P07730016
P07730017
P07730018
P07730020
P07730022
P07730023
CHANGE GEAR 50T
CHANGE GEAR 35T
CHANGE GEAR 60T
3
HEX WRENCH 4MM
4
HEX WRENCH 5MM
5
HEX WRENCH 6MM
WRENCH 36MM OPEN-END
CAP SCREW M6-1 X 10
3-JAW CHUCK 6"
6
HEX WRENCH 8MM
7
WRENCH 8 X 10MM OPEN-ENDS
8
WRENCH 12 X 14MM OPEN-ENDS
WRENCH 17 X 19MM OPEN-ENDS
DEAD CENTER MT#3
23-1 P07730023-1 CHUCK 6" D1-5
23-2 P07730023-2 EXTERNAL JAW SET
23-3 P07730023-3 LATHE CHUCK KEY
9
10
11
12
13
15
DEAD CENTER MT#5
24
24-1 P07730025
26 P07730026
P07730024
DRILL CHUCK B-16 1-13MM
BOTTLE FOR OIL
DRILL CHUCK KEY 5/16" AH 11T SD-5/8
CAMLOCK STUD D1-5
SPANNER WRENCH 45-52MM HOOK-TYPE
SPANNER WRENCH 63MM PIN-TYPE
Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here
are available for purchase. Call (800) 523-4777 or visit our online parts store at www.grizzly.com to check for availability.
-78-
Model G0773 (Mfd. Since 12/14)
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Lathe Bed
101
122
119
122
125
119
122
124
125
102
103
104
106
120
121
119
108
107
109
108
110
111
117
113
124
105
116
115
114
113
112
118
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
101
102
103
104
105
106
107
108
109
110
111
112
P07730101
P07730102
P07730103
P07730104
P07730105
P07730106
P07730107
P07730108
P07730109
P07730110
P07730111
P07730112
SPLASH GUARD
113
114
115
116
117
118
119
120
121
122
124
125
P07730113
FLAT WASHER 10MM
DOWEL PIN 8 X 30
BALL OILER 6MM PRESS-IN
CAP SCREW M8-1.25 X 45
HEX NUT M10-1.25 THIN
KEY 4 X 4 X 28
CAP SCREW M8-1.25 X 12
FLAT WASHER 8MM
LATHE BED
P07730114
P07730115
P07730116
P07730117
P07730118
P07730119
P07730120
P07730121
P07730122
P07730124
P07730125
LEADSCREW SHIELD
LEADSCREW
HEX NUT M12-1.5 THIN
FLAT WASHER 12MM
LEADSCREW BRACKET
PROTECTIVE SUPPORT
CAP SCREW M4-.7 X 8
FEED ROD
CAP SCREW M6-1 X 12
DOWEL PIN 8 X 16
BED RACK
FLAT WASHER 6MM
LOCK WASHER 6MM
HEX NUT M6-1
-79-
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Headstock
203
204
202
205
201
207
206
229
228 227
220
219
209
221
208
226
225
224
223
222
230
231
216 217
218
204
233
215
242
226
279
237
238
278
204
209
240
226
280
299
298
249
243
297
296
248
236
295
265
230
245
247
229
228
227
294
226
293
292
291
290
289
288
245
287
286
285
284
282
283
281
251
-80-
Model G0773 (Mfd. Since 12/14)
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Headstock Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
201 P07730201 HEADSTOCK COVER
242 P07730242 ROTARY SWITCH KEDU ZH-HC-2 1/0/2
243 P07730243 TERMINAL BLOCK 12P
245 P07730245 CAP SCREW M10-1.5 X 35
247 P07730247 HEADSTOCK SWITCH PANEL
248 P07730248 SWITCH PANEL FACEPLATE
249 P07730249 TAP SCREW M4 X 16
251 P07730251 FLAT HD SCR M5-.8 X 20
265 P07730265 PHLP HD SCR M2.5-.45 X 14
278 P07730278 ON/OFF SWITCH MOUNTING PLATE
279 P07730279 ON/OFF SWITCH KEDU KJD17B 120V
280 P07730280 FLAT HD SCR M4-.7 X 12
281 P07730281 SPINDLE LOCK NUT
282 P07730282 SPINDLE PULLEY
202 P07730202 CAP SCREW M5-.8 X 12
203 P07730203 FLAT HD SCR M5-.8 X 30
204 P07730204 FLAT WASHER 4MM
205 P07730205 FLAT HD SCR M4-.7 X 8
206 P07730206 LATHE CHUCK GUARD
207 P07730207 LATHE CHUCK GUARD WINDOW
208 P07730208 CAP SCREW M4-.7 X 16
209 P07730209 HEX NUT M4-.7
215 P07730215 HEX NUT M5-.8
216 P07730216 COMPRESSION SPRING
217 P07730217 CAP SCREW M5-.8 X 50
218 P07730218 LATHE CHUCK GUARD MOUNTING BRACKET
219 P07730219 LATHE CHUCK GUARD HARD STOP
220 P07730220 LATHE CHUCK GUARD SHIM
221 P07730221 LATHE CHUCK GUARD BRACE
222 P07730222 EXT TOOTH WASHER 4MM
223 P07730223 FLAT WASHER 4MM
283 P07730283 SPINDLE SPACER
284 P07730284 SPINDLE GEAR
285 P07730285 SPINDLE SPACER
286 P07730286 OIL SEAL
287 P07730287 BALL BEARING 6010ZZ
288 P07730288 INT RETAINING RING 80MM
289 P07730289 OIL SEAL
224 P07730224 LOCK WASHER 4MM
225 P07730225 GROUND LUG
226 P07730226 PHLP HD SCR M4-.7 X 12
227 P07730227 PIN SHAFT
290 P07730290 TAPERED ROLLER BEARING 32011
291 P07730291 OIL SEAL
228 P07730228 EXT RETAINING RING 8MM
229 P07730229 CAP SCREW M4-.7 X 30
230 P07730230 LIMIT SWITCH KEDU QKS7 AC15 250V
231 P07730231 CAP SCREW M4-.7 X 20
233 P07730233 MICRO SWITCH MOUNTING PLATE
236 P07730236 HEADSTOCK CASTING
237 P07730237 FLAT HD CAP SCR M5-.8 X 12
238 P07730238 ROTARY SWITCH KEDU ZH-B FOR/OFF/REV
240 P07730240 POWER INDICATOR LIGHT ZD10
292 P07730292 KEY 6 X 6 X 12
293 P07730293 KEY 6 X 6 X 8
294 P07730294 SPINDLE
295 P07730295 SPINDLE CAM
296 P07730296 REGISTER PIN
297 P07730297 COMPRESSION SPRING
298 P07730298 LOCK WASHER 8MM
299 P07730299 CAP SCREW M8-1.25 X 14
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Tailstock
301
304
303
306
305
310
344
343
332
311
341
310
333
334
336
342
338
346
337
309
326
317
318
325
321
339
319
320
340
345
325
323
REF PART #
301 P07730301 QUILL LOCK HANDLE M8-1.25 X 10
303 P07730303 TAILSTOCK LOCK HANDLE M10-1.5 X 14
DESCRIPTION
REF PART #
DESCRIPTION
326 P07730326 TAILSTOCK T-NUT 30 X 16 X 32 M8-1.25
332 P07730332 ROLL PIN 5 X 26
304 P07730304 TAILSTOCK LOCK HANDLE KNOB M10-1.5
305 P07730305 QUILL LOCK HANDLE BASE M8-1.25 X 30
306 P07730306 TAILSTOCK HANDLE BASE M12-1.75
309 P07730309 T-TAP FLAT KEY 12 X 12 X 7
310 P07730310 BALL OILER 6MM PRESS-IN
333 P07730333 FLAT WASHER 5MM
334 P07730334 TUBULAR CLAMP M8-1.25
336 P07730336 TAILSTOCK QUILL
337 P07730337 TAILSTOCK BODY
338 P07730338 SET SCREW M8-1.25 X 16 DOG-PT
339 P07730339 SQ HD BOLT M12-1.75 X 230
340 P07730340 TAILSTOCK BASE
311 P07730311 FLAT WASHER 12MM
317 P07730317 QUILL HANDWHEEL HANDLE
318 P07730318 SHOULDER SCREW M6-1 X 10, 10 X 45
319 P07730319 HANDWHEEL 100MM DIA DISHED W/HANDLE
320 P07730320 HANDWHEEL CURVED PLATE SPRING
321 P07730321 GRADUATED COLLAR
341 P07730341 THRUST BEARING 51102
342 P07730342 TAILSTOCK END COVER
343 P07730343 CAP SCREW M8-1.25 X 16
344 P07730344 TAILSTOCK LEADSCREW
345 P07730345 CAP SCREW M6-1 X 25
346 P07730346 HARD STOP
323 P07730323 TAILSTOCK CLAMP PLATE
325 P07730325 CAP SCREW M8-1.25 X 35
-82-
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Tool Post
411
401
402
403
404
405
427
406
416
408
415
407
414
428
413
412
424
410
430
409
429
426
425
418
419
420
421
423
422
REF PART #
DESCRIPTION
TOOL POST LEVER M10-1.5
REF PART #
DESCRIPTION
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
P07730401
416
418
419
420
421
422
423
424
425
426
427
428
429
430
P07730416
P07730418
P07730419
P07730420
P07730421
P07730422
P07730423
P07730424
P07730425
P07730426
P07730427
P07730428
P07730429
P07730430
HANDWHEEL HANDLE M6-1 X 8
CAP SCREW M8-1.25 X 16
COMPOUND REST GIB
P07730402
P07730403
P07730404
P07730405
P07730406
P07730407
P07730408
P07730409
P07730410
P07730411
P07730412
P07730413
P07730414
P07730415
TOOL POST LEVER BASE M12-1.75
TOOL POST LEVER SPACER
SQ HD BOLT M8-1.25 X 30
TURRET TOOL HOLDER
SET SCREW M6-1 X 16 DOG-PT
COMPOUND REST BASE
SET SCREW M6-1 X 20 CONE-PT
HEX NUT M6-1 THIN
BALL OILER 6MM PRESS-IN
COMPOUND REST
SET SCREW M6-1 X 10 CONE-PT
LEADSCREW COLLAR 6MM
TOOL POST SHAFT M12-1.75
COMPRESSION SPRING
SET SCREW M4-.7 X 16 LONG DOG-PT
HEX NUT M4-.7 THIN
COMPOUND REST LEADSCREW NUT
COMPOUND REST LEADSCREW
TOOL POST LEVER KNOB M10-1.5
LEADSCREW SUPPORT
CAP SCREW M6-1 X 16
LOCKING PIN
GRADUATED COLLAR
HEX NUT M8-1.25
HANDWHEEL 68MM DIA FLAT W/HANDLE
-83-
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Cross Slide
531
530
501
549
503
543
505
504
544
506
510
507
532
519
508
509
507
533
511
512
534
529
529
513
527
535
527
526
517
537
514
515
518
519
516
536
528
519
517
520
518
537
519
518
522
523
518
539
540
524
538
525
547
548
541
542
543
546
544
545
-84-
Model G0773 (Mfd. Since 12/14)
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Cross Slide Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
501 P07730501 CAP SCREW M8-1.25 X 20
503 P07730503 T-SLOT NUT 10MM, M8-1.25
504 P07730504 CROSS SLIDE CASTING
505 P07730505 ROLL PIN 3 X 18
527 P07730527 CAP SCREW M8-1.25 X 40
528 P07730528 FLAT WASHER 8MM
529 P07730529 CAP SCREW M8-1.25 X 35
530 P07730530 T-SLOT NUT M8-1.25, ROUNDED
531 P07730531 COMPOUND REST MOUNTING POST
532 P07730532 CROSS SLIDE GIB
506 P07730506 GEAR 22T
507 P07730507 THRUST BEARING 51100
508 P07730508 LEADSCREW HUB
533 P07730533 HEX NUT M5-.8
509 P07730509 CAP SCREW M6-1 X 35
510 P07730510 SET SCREW M8-1.25 X 16 CONE-PT
511 P07730511 GRADUATED COLLAR
512 P07730512 HANDWHEEL CURVED PLATE SPRING
513 P07730513 HANDWHEEL 68MM DIA FLAT W/HANDLE
514 P07730514 HEX NUT M10-1.5
534 P07730534 CAP SCREW M6-1 X 18
535 P07730535 SET SCREW M5-.8 X 30 CONE-PT
536 P07730536 SET SCREW M8-1.25 X 8
537 P07730537 STRAIGHT WAY WIPER COVER
538 P07730538 SADDLE CASTING
539 P07730539 V-WAY WIPER COVER, LONG
540 P07730540 V-WAY WIPER, LONG
515 P07730515 HANDWHEEL HANDLE 50MM
516 P07730516 SHOULDER SCREW M6-1 X 8, 8 X 45
517 P07730517 STRAIGHT WAY WIPER
518 P07730518 PHLP HD SCR M4-.7 X 12
519 P07730519 BALL OILER 6MM PRESS-IN
520 P07730520 V-WAY WIPER COVER
522 P07730522 V-WAY WIPER
541 P07730541 SADDLE GIB
542 P07730542 SADDLE CLAMP SLIDE
543 P07730543 FLAT WASHER 6MM
544 P07730544 CAP SCREW M6-1 X 20
545 P07730545 SET SCREW M4-.7 X 16 LONG DOG-PT
546 P07730546 HEX NUT M4-.7 THIN
523 P07730523 CROSS SLIDE CLAMP, LARGE
524 P07730524 CROSS SLIDE CLAMP, SMALL
525 P07730525 CROSS SLIDE LEADSCREW
526 P07730526 CAP SCREW M8-1.25 X 45
547 P07730547 CROSS SLIDE CLAMP, MEDIUM
548 P07730548 SADDLE LEADSCREW NUT
549 P07730549 COMPOUND REST MOUNTING PLATE
-85-
Model G0773 (Mfd. Since 12/14)
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Apron
601
602
603
604
634
635
636
612
613
605
603
641
610
637
611
604
640
638
608
607
658
659
660
614
641
642
643
661
662
620
615
621
644
663
664
619
618
617
645
641
629
657
656
629
658
666
613
630
631
632
625
626
616
622
646
669
670
647
648
623
671
649
647
651
652
653
654
627
628
672
673
674
667
668
639
606
633
650
624
655
609
-86-
Model G0773 (Mfd. Since 12/14)
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Apron Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
601 P07730601 CAP SCREW M5-.8 X 35
602 P07730602 HEX NUT M5-.8 THIN
603 P07730603 HALF NUT
638 P07730638 SHAFT
639 P07730639 HANDWHEEL 122MM DIA DISHED
640 P07730640 SET SCREW M6-1 X 6
641 P07730641 SET SCREW M6-1 X 6 CONE-PT
642 P07730642 GEARED SHAFT
604 P07730604 SET SCREW M8-1.25 X 10
605 P07730605 CARRIAGE CLAMP
606 P07730606 FENDER WASHER 6MM
607 P07730607 HEX NUT M5-.8
643 P07730643 GEAR 67T
644 P07730644 CARRIAGE SUPPORT, LEFT
645 P07730645 SET SCREW M6-1 X 8 CONE-PT
646 P07730646 CARRIAGE CASTING
647 P07730647 EXT RETAINING RING 14MM
648 P07730648 GEAR 60T
608 P07730608 CAP SCREW M5-.8 X 16
609 P07730609 ACORN NUT M6-1
610 P07730610 RETAINING COLLAR
611 P07730611 WORM GEAR
612 P07730612 CARRIAGE SUPPORT, RIGHT
613 P07730613 CAP SCREW M5-.8 X 10
614 P07730614 SET SCREW M6-1 X 12 DOG-PT
615 P07730615 SET SCREW M6-1 X 8
616 P07730616 ROCKER ARM
649 P07730649 KEY 5 X 5 X 16
650 P07730650 HANDWHEEL HANDLE 75MM
651 P07730651 KEY 4 X 4 X 16
652 P07730652 HANDWHEEL SHAFT
653 P07730653 GRADUATED COLLAR
654 P07730654 HANDWHEEL CURVED PLATE SPRING
655 P07730655 SHOULDER SCREW M8-1.25 X 10, 9 X 70
656 P07730656 SET SCREW M6-1 X 12
657 P07730657 COMPRESSION SPRING
658 P07730658 PHLP HD SCR M4-.7 X 8
659 P07730659 FLAT WASHER 4MM
660 P07730660 DIAL PIN
617 P07730617 ROCKER SHAFT
618 P07730618 EXT RETAINING RING 35MM
619 P07730619 FEED SELECTOR CAM SHAFT
620 P07730620 FEED SELECTOR SHAFT MOUNT
621 P07730621 CAP SCREW M6-1 X 30
622 P07730622 EXT RETAINING RING 15MM
623 P07730623 BUSHING
624 P07730624 GEARED SHAFT
661 P07730661 THREAD DIAL
625 P07730625 DOWEL PIN 5 X 12
626 P07730626 DOWEL PIN 5 X 16
627 P07730627 HALF NUT CAM
662 P07730662 COMPRESSION SPRING
663 P07730663 E-CLIP 9MM
664 P07730664 THREAD DIAL SHAFT
666 P07730666 THREAD DIAL GUARD
667 P07730667 CAP SCREW M5-.8 X 45
668 P07730668 FLAT WASHER 5MM
669 P07730669 THREAD DIAL CASTING
670 P07730670 KEY 4 X 4 X 8
628 P07730628 HALF NUT LEVER M8-1.25 X 8
629 P07730629 STEEL BALL 6MM
630 P07730630 COMPRESSION SPRING
631 P07730631 FEED CONTROL SHAFT M12-1.75 X 18
632 P07730632 COMPRESSION SPRING
633 P07730633 FEED CONTROL SHAFT KNOB M12-1.75
634 P07730634 CAP SCREW M6-1 X 16
635 P07730635 GEAR 81T
671 P07730671 GEAR 28T
672 P07730672 LOCK WASHER 4MM
673 P07730673 FENDER WASHER 4MM
674 P07730674 PHLP HD SCR M4-.7 X 10
636 P07730636 FLAT WASHER 6MM
637 P07730637 GEAR 22T
-87-
Model G0773 (Mfd. Since 12/14)
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Gearbox
714
715
712
711
716
710
709
711
708
707
733
731
732
705
706
720
734
729
701
728
741
703
702
701
726
727
728
723
723
724
722
721
770
719
760
761
755
717
759
740
738
758
739
735
757
752
701
756
751
750
754
730
748
741
742
741
736
749
741
768
735
765
746
743
745
744
767
773
701
766
761
725
764
768
718
762
753
763
769
770
704
771
747
737
762
772
-88-
Model G0773 (Mfd. Since 12/14)
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Gearbox Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
701
702
703
704
705
706
707
708
709
710
711
712
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
P07730701 CAP SCREW M5-.8 X 12
P07730702 OIL SEAL 22 X 35 X 7
P07730703 GASKET HOUSING
P07730704 INDICATOR PLATE
P07730705 KEY 4 X 4 X 16
P07730706 SHAFT
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
P07730738 COMBO GEAR 13T/40T
P07730739 O-RING 12.5 X 1.8
P07730740 SHAFT
P07730741 SET SCREW M5-.8 X 8 CONE-PT
P07730742 SIGHT GLASS M16-2 X 1.5
P07730743 SHAFT END CAP
P07730744 SPACER, SMALL
P07730707 KEY 5 X 5 X 80
P07730708 SPACER
P07730745 COMBO GEAR 24T/16T/38T/35T/24T
P07730746 SHAFT
P07730709 GEAR 30T
P07730710 GEAR 28T
P07730747 STEEL BALL 5MM
P07730748 COMBO GEAR 24T/16T/38T
P07730749 GEAR 42T
P07730711 SPACER
P07730712 GEAR 25T
P07730714 GEAR 24T
P07730750 SPACER, LARGE
P07730751 OIL SEAL 25 X 32 X 4
P07730752 GASKET HOUSING
P07730753 SELECTOR KNOB
P07730754 CLUTCH COUPLER
P07730755 O-RING 15 X 1.8
P07730715 GEAR 28T
P07730716 EXT RETAINING RING 16MM
P07730717 GEARBOX CASTING
P07730718 KEY 5 X 5 X 12
P07730719 SPACER
P07730720 SHAFT
P07730756 CLUTCH, DRIVE SIDE
P07730757 CLUTCH, FOLLOW SIDE
P07730758 CLUTCH HOUSING
P07730759 COMPRESSION SPRING
P07730760 FEED ROD COUPLING
P07730761 O-RING 8.75 X 1
P07730721 KEY 5 X 5 X 60
P07730722 GEAR 30T
P07730723 SPACER
P07730724 GEAR 19T
P07730725 SELECTOR KNOB SHAFT
P07730726 GEAR 40T
P07730762 SET SCREW M6-1 X 12 CONE-PT
P07730763 RETAINING PIN
P07730727 GEAR 14T
P07730728 O-RING 30 X 2.65
P07730729 SHAFT HUB
P07730764 CAP SCREW M8-1.25 X 80
P07730765 KEY 5 X 5 X 50
P07730730 EXT RETAINING RING 10MM
P07730731 OIL SEAL 18 X 30 X 7
P07730732 LEADSCREW SUPPORT
P07730733 CAP SCREW M4-.7 X 8
P07730734 CONNECTING COLLAR
P07730735 OIL PLUG M16-2 X 1.5
P07730736 O-RING 16 X 2.65
P07730737 COMPRESSION SPRING 0.7 X 4 X 25
P07730766 KEY 5 X 5 X 32
P07730767 ROLL PIN 4 X 24
P07730768 FLT HD SCR M3-.5 X 6
P07730769 DRIVING LEVER
P07730770 ROLL PIN 4 X 18
P07730771 GEARBOX COVER
P07730772 CAP SCREW M5-.8 X 30
P07730773 GEARBOX FACEPLATE
-89-
Model G0773 (Mfd. Since 12/14)
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Change Gears
801
802
803
811
804
854
813
812
856
807
808
810
805
845
851
859
806
808
807
846
825
810
845
851
856
824
820
819
855
818
816
832
834
823
831
821
827
833
835
829
828
826
830
817
849
851
845
836
811
837
848
850
847
812
843
844
853
840
841
857
841
838
839
842
-90-
Model G0773 (Mfd. Since 12/14)
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Change Gears Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
801 P07730801 PHLP HD SCR M4-.7 X 10
802 P07730802 FLAT WASHER 4MM
803 P07730803 HEX NUT M4-.7
832 P07730832 GEAR 91T
833 P07730833 END GEAR SUPPORT SHAFT M30-1.5
834 P07730834 FENDER WASHER 10MM
835 P07730835 SQUARE NUT M10-1.5
836 P07730836 BALL OILER 6MM PRESS-IN
837 P07730837 COMPRESSION SPRING
838 P07730838 E-CLIP 12MM
804 P07730804 CHANGE GEAR ENCLOSURE HINGE
805 P07730805 CHANGE GEAR ENCLOSURE MOUNT
806 P07730806 GREASE FITTING 1/8PT 65-DEG
807 P07730807 SHAFT
808 P07730808 BUSHING
839 P07730839 HEX NUT M12-1.75 THIN
840 P07730840 LOCKING PIN
810 P07730810 SPACER
811 P07730811 CAP SCREW M8-1.25 X 25
812 P07730812 FLAT WASHER 8MM
813 P07730813 SET SCREW M5-.8 X 10 CONE-PT
816 P07730816 PHLP HD SCR M5-.8 X 10
817 P07730817 ACCESS PORT COVER
818 P07730818 CAP SCREW M6-1 X 14
819 P07730819 FENDER WASHER 6MM
820 P07730820 KEY 4 X 4 X 22
841 P07730841 FLAT WASHER 12MM
842 P07730842 BUSHING
843 P07730843 ROLL PIN 3 X 30
844 P07730844 CHANGE GEAR CABINET KNOB
845 P07730845 FLAT WASHER 6MM
846 P07730846 SUPPORT ARM HANDLE M5-.8 X 8
847 P07730847 FENDER WASHER 8MM
848 P07730848 SPACER
821 P07730821 GEAR 30T
849 P07730849 GEAR 90T
823 P07730823 SPACER
850 P07730850 CAP SCREW M12-1.75 X 45
851 P07730851 CAP SCREW M6-1 X 12
853 P07730853 SPACER
824 P07730824 UPPER GEAR SUPPORT SHAFT
825 P07730825 UPPER GEAR AXLE
826 P07730826 HEX NUT M6-1
854 P07730854 UPPER SUPPORT ARM
855 P07730855 GEAR 65T
827 P07730827 HEX BOLT M6-1 X 35
828 P07730828 END GEAR AXLE M10-1.5 X 19
829 P07730829 KEY 8 X 7 X 14
856 P07730856 GEAR 48T
857 P07730857 END GEAR SUPPORT ARM
859 P07730859 CHANGE GEAR CABINET DOOR
830 P07730830 SPANNER NUT M30-1.5
831 P07730831 GEAR 86T
-91-
Model G0773 (Mfd. Since 12/14)
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Motor & Drive
901
914
903
902
915
916
904
917
910
909
920
918
912
911
905
908
906
919
907
913
927
928
926
925
924
940
939
923
922
921
941
927
938
943
931 936
925
944
937
935
929
969
932
933
934
932
970
930
929
950
945
946
945
935-1
935-5
935-9
935-3
935-8
935-4
947
949
948
935-2
935-6
935-7
-92-
Model G0773 (Mfd. Since 12/14)
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Motor & Drive Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
P07730901
P07730902
P07730903
P07730904
P07730905
P07730906
P07730907
P07730908
P07730909
P07730910
P07730911
P07730912
P07730913
P07730914
P07730915
P07730916
P07730917
P07730918
P07730919
P07730920
P07730921
P07730922
P07730923
P07730924
P07730925
P07730926
P07730927
P07730928
P07730929
P07730930
POWER CORD 16G 3W 72" 5-15P
STRAIN RELIEF M12-1.75 TYPE-3
PHLP HD SCR M4-.7 X 8
MOTOR ENCLOSURE COVER, BACK
CIRCUIT BREAKER CHINT NB1-63 D16 400V
FLAT HD SCR M4-.7 X 8
DIN RAIL
931
932
933
934
935
P07730931
P07730932
P07730933
P07730934
P07730935
TENSIONER PULLEY MANDREL
BALL BEARING 6001-2RS
SPACER
INT RETAINING RING 28MM
MOTOR 1HP 110V 1-PH
935-1 P07730935-1 MOTOR FAN COVER
935-2 P07730935-2 MOTOR FAN
BALL OILER 6MM PRESS-IN
EXT RETAINING RING 13MM
TIMING BELT PULLEY
935-3 P07730935-3 S CAPACITOR 150M 250V 1-5/8 X 3-1/8
935-4 P07730935-4 R CAPACITOR 20M 450V 1-1/2 X 2-3/4
935-5 P07730935-5 MOTOR JUNCTION BOX
935-6 P07730935-6 CONTACT PLATE
TIMING BELT PULLEY SHAFT M12-1.5 X 30
FENDER WASHER 12MM
TIMING BELT 1.5 X 15 X 124
CAP SCREW M5-.8 X 12
MOTOR ENCLOSURE COVER, TOP
FLAT HD SCR M3-.5 X 10
SOCKET IEC 320 C14 110V
HEX NUT M3-.5
935-7 P07730935-7 CENTRIFUGAL SWITCH
935-8 P07730935-8 BALL BEARING 6204-2RS
935-9 P07730935-9 BALL BEARING 6204-2RS
936
937
938
939
940
941
943
944
945
946
947
948
949
950
969
970
P07730936
P07730937
P07730938
P07730939
P07730940
P07730941
P07730943
P07730944
P07730945
P07730946
P07730947
P07730948
P07730949
P07730950
P07730969
P07730970
TENSIONER SUPPORT ARM SHAFT
SPACER
FLAT WASHER 10MM
HEX NUT M10-1.5
MOUNTING BRACKET
FENDER WASHER 12MM
CIRCUIT BREAKER MOUNTING PLATE
CAP SCREW M8-1.25 X 20
FENDER WASHER 8MM
SPACER
CAP SCREW M4-.7 X 8
CAP SCREW M8-1.25 X 25
FLAT WASHER 8MM
TENSIONER SUPPORT ARM
SPACER
MOTOR TIMING BELT PULLEY
CAP SCREW M6-1 X 16
FENDER WASHER 6MM
MOTOR V-BELT PULLEY
KEY 5 X 5 X 50
CAP SCREW M10-1.5 X 40
TIMING BELT SUPPORT ARM
SPACER
HEX NUT M12-1.75 THIN
EXT RETAINING RING 12MM
TENSIONER PULLEY
MOTOR ENCLOSURE
V-BELT 10X838
-93-
Model G0773 (Mfd. Since 12/14)
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Mill
1094
1095
1093
1091
1010
1160
1092
1090
1081
1096
1097
1098
1100
1010
1082
1083
1101
1105
1102
1099
1107
1145
1150
1015
1140
1088
1089
1157
1108
1014
1104
1185
1151
1148
1149
1018
1147
1146
1106
1015
1130
1114
1145-1
1115
1123
1103
1083
1156
1164
1165
1117
1129
1130
1133
1116
1118
1166
1167
1168
1169
1170
1120
1119
1121
1149
1082
1136
1009
1177
1113
1131
1132
1134
1135
1178
1179
1081
1126
1127
1171
1124
1125
1122
1180
1138
1172
1085
1182
1183
1181
1137
1084
1128
1162
1174
1175
1143
1080
1075
1052
1004
1065
1176
1141
1176
1158
1173
1064
1063
1062
1057
1158
1142-1
1053
1054
1142
1051
1066
1056
1046
1050
1071
1061
1159
1184
1058
1028
1058
1055
1060
1078
1077
1073
1078
1059
1028
1046
1048
1028
1031
1045
1044
1043
1072
1184
1076
1067
1070
1049
1079
1039
1014
1074
1068
1069
1047
1042
1041
1040
1018
1153
1154
1045
1044
1043
1155
1152
-94-
Model G0773 (Mfd. Since 12/14)
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Mill Parts List
REF PART #
DESCRIPTION
REF PART #
DESCRIPTION
1004 P07731004 FLAT WASHER 8MM
1009 P07731009 HANDWHEEL CURVED PLATE SPRING
1010 P07731010 CAP SCREW M6-1 X 12
1014 P07731014 SET SCREW M6-1 X 20 DOG-PT
1015 P07731015 HEX NUT M6-1 THIN
1018 P07731018 LOCKING HANDLE
1028 P07731028 RIVET 2 X 3 FLUTED
1031 P07731031 POSITION MARKER
1039 P07731039 MILL TILT CLAMP
1040 P07731040 KEY 8 X 8 X 12
1084 P07731084 SPINDLE R-8
1085 P07731085 KEY 6 X 6 X 18
1088 P07731088 MILL SWITCH BOX
1089 P07731089 PHLP HD SCR M5-.8 X 8
1090 P07731090 SPINDLE PULLEY
1091 P07731091 RETAINING COLLAR
1092 P07731092 SPANNER NUT
1093 P07731093 DRAWBAR 7/16-20 X 6-3/4
1094 P07731094 DRAWBAR CAP
1095 P07731095 MOTOR BLDC 230V W80-500WC
1096 P07731096 KEY 5 X 5 X 20
1041 P07731041 TILT SHAFT M24-3.0
1042 P07731042 MILL MOUNTING BRACKET
1043 P07731043 FLAT WASHER 10MM
1044 P07731044 LOCK WASHER 10MM
1045 P07731045 CAP SCREW M10-1.5 X 30
1046 P07731046 CAP SCREW M6-1 X 16
1047 P07731047 TILT HUB
1097 P07731097 MOTOR PULLEY
1098 P07731098 FENDER WASHER 6MM
1099 P07731099 TIMING BELT HTD 350-SM
1100 P07731100 FLAT HD SCR M6-1 X 18
1101 P07731101 MOTOR MOUNTING PLATE
1102 P07731102 GEARBOX
1048 P07731048 GRADUATED PLATE
1049 P07731049 FLAT HD SCR M6-1 X 12
1050 P07731050 COLUMN RACK
1103 P07731103 SPINDLE BOX
1104 P07731104 SET SCREW M6-1 X 25 CONE-PT
1105 P07731105 GROUND INDICATOR PLATE
1106 P07731106 MILL BODY
1051 P07731051 HARD STOP
1052 P07731052 FLAT HD SCR M3-.5 X 8
1053 P07731053 COLUMN RACK BRACKET
1054 P07731054 GRADUATED DEPTH GAUGE
1055 P07731055 SHAFT
1107 P07731107 MILL GIB
1108 P07731108 CAP SCREW M8-1.25 X 80
1113 P07731113 WORM GEAR
1114 P07731114 KEY 4 X 4 X 20
1056 P07731056 KEY 4 X 4 X 8
1115 P07731115 GEARED SHAFT 14T
1116 P07731116 GEAR 29T
1057 P07731057 TORSION SPRING
1058 P07731058 SPACER
1117 P07731117 WORM SUPPORT
1059 P07731059 SPRING HOUSING
1060 P07731060 FLAT HD SCR M5-.8 X 8
1061 P07731061 SPRING SHROUD
1062 P07731062 SUPPORT BRACE
1063 P07731063 FLAT WASHER 12MM
1064 P07731064 END CAP
1118 P07731118 DOWEL PIN 4 X 16
1119 P07731119 COMPRESSION SPRING
1120 P07731120 SET SCREW M6-1 X 8
1121 P07731121 STEEL BALL 5MM
1122 P07731122 HANDLE LEVER M8-1.25 X 10
1123 P07731123 HANDLE KNOB M8-1.25
1124 P07731124 EXT RETAINING RING 12MM
1125 P07731125 DOWN-FEED HANDLE HUB M8-1.25
1126 P07731126 CAP SCREW M5-.8 X 20
1127 P07731127 FINE DOWN-FEED CONTROL COVER
1128 P07731128 PHLP HD SCR M4-.7 X 6
1129 P07731129 FINE DOWN-FEED LINKAGE (WORMGEAR)
1130 P07731130 TAPER PIN 3 X 12
1065 P07731065 ACORN NUT M8-1.25
1066 P07731066 SHOULDER SCREW M8-1.25 X 12, 10 X 12
1067 P07731067 HEX NUT M24-3
1068 P07731068 DEPTH STOP
1069 P07731069 DEPTH STOP GIB
1070 P07731070 COLUMN TILT WASHER 24MM
1071 P07731071 STANDOFF M10-1.5 X 8
1072 P07731072 SET SCREW M5-.8 X 6 CONE-PT
1073 P07731073 RETAINING COLLAR
1074 P07731074 MILL COLUMN
1131 P07731131 DOWEL PIN 3 X 12
1132 P07731132 FINE DOWN-FEED LINKAGE (MIDDLE)
1133 P07731133 FINE DOWN FEED LINKAGE (KNOB)
1134 P07731134 CAP SCREW M5-.8 X 25
1135 P07731135 FINE DOWN-FEED CONTROL BRACKET
1136 P07731136 GRADUATED COLLAR
1137 P07731137 SET SCREW M4-.7 X 12 DOG-PT
1138 P07731138 FINE DOWN-FEED KNOB
1140 P07731140 CAP SCREW M6-1 X 35
1141 P07731141 TAP SCREW M4 X 10
1142 P07731142 MILL CIRCUIT BOARD ZM3405
1075 P07731075 COLUMN CAP
1076 P07731076 POWER CORD 18G 3W 72"
1077 P07731077 MILL ELECTRICAL BOX
1078 P07731078 PHLP HD SCR M4-.7 X 8
1079 P07731079 PLUG IEC 320 C14
1080 P07731080 ARBOR R-8 X B-16
1081 P07731081 CAP SCREW M5-.8 X 10
1082 P07731082 BEARING RETAINER
1083 P07731083 BALL BEARING 6206ZZ
-95-
Model G0773 (Mfd. Since 12/14)
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Mill Parts Cont.
REF
PART #
DESCRIPTION
REF PART #
DESCRIPTION
1142-1 P07731142-1 MILL CIRCUIT BOARD XMT-COM
1165 P07731165 CAP SCREW M4-.7 X 20
1166 P07731166 HEX NUT M6-1
1143
1145
P07731143
P07731145
ELECTRICAL BOX COVER
VARIABLE-SPEED CIRCUIT BOARD X-1
1167 P07731167 FLAT WASHER 6MM
1168 P07731168 LIMIT SWITCH MOUNTING PLATE
1169 P07731169 CAP SCREW M4-.7 X 12
1170 P07731170 MILL SAFETY SHIELD CAM
1171 P07731171 SET SCREW M4-.7 X 6
1172 P07731172 SAFETY SHIELD MOUNT
1173 P07731173 FLAT WASHER 5MM
1174 P07731174 THUMB SCREW M5-.8 X 20
1175 P07731175 MILL SAFETY SHIELD
1176 P07731176 MILL SAFETY SHIELD EXTENSION
1177 P07731177 BRACKET
1145-1 P07731145-1 VARIABLE-SPEED DIAL
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1162
1164
P07731146
P07731147
P07731148
P07731149
P07731150
P07731151
P07731152
P07731153
P07731154
P07731155
P07731156
P07731157
P07731158
P07731159
P07731160
P07731162
P07731164
POWER INDICATOR LIGHT
FAULT INDICATOR LIGHT
SWITCH BOX COVER
TAP SCREW M6 X 10
POWER SWITCH KEDU KJD17B 120V
FUSE ENCLOSURE
MILL MOUNTING BRACKET
CONNECTING ROD M14-2 X 20
HEX NUT M14-2
ADJUSTABLE FOOT M14-2
SWITCHBOX FACEPLATE
FLAT HD SCR M4-.7 X 16
STRAIN RELIEF TYPE-5
CONDUIT
1178 P07731178 LIMIT SWITCH KEDU QKS7 AC15 250V
1179 P07731179 CAP SCREW M4-.7 X 30
1180 P07731180 FLAT HD SCR M4-.7 X 10
1181 P07731181 MAGNET
1182 P07731182 SAFETY WINDOW LATCH
1183 P07731183 CAP SCREW M4-.7 X 16
1184 P07731184 STRAIN RELIEF M12-1.75 TYPE-3
1185 P07731185 DRO CONNECTOR
SET SCREW M6-1 X 8 CONE-PT
COLUMN COVER
SAFETY SHIELD MOUNTING BRACKET
-96-
Model G0773 (Mfd. Since 12/14)
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Labels & Cosmetics
1204
1203
1202
1205
1206
1201
1209
1207
1208
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
1201
1202
1203
1204
1205
P07731201
P07731202
P07731203
P07731204
P07731205
PINCH/ENTANGLEMENT LABEL
ELECTRICITY LABEL
1206
1207
1208
1209
P07731206
P07731207
P07731208
P07731209
ENTANGLEMENT HAZARD LABEL
SPINDLE SPEED WARNING LABEL
MACHINE ID LABEL
DISCONNECT 110V LABEL
READ MANUAL LABEL
GRIZZLY GREEN TOUCH-UP PAINT
FACE SHIELD & SAFETY GLASSES LABEL
Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes
off or becomes unreadable, the owner of this machine MUST replace it in the original location
before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.
-97-
Model G0773 (Mfd. Since 12/14)
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SECTION 11: APPENDIX
Threading & Feeding
Chart
Thread Dial Chart
-98-
Model G0773 (Mfd. Since 12/14)
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WARRANTY CARD
Name_____________________________________________________________________________
Street_____________________________________________________________________________
City _______________________ State_________________________ Zip _____________________
Phone #____________________ Email _________________________________________________
Model # ____________________ Order #_______________________ Serial #__________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop
better products and services. Of course, all information is strictly confidential.
1. How did you learn about us?
____ Advertisement
____ Card Deck
____ Friend
____ Website
____ Catalog
____ Other:
2. Which of the following magazines do you subscribe to?
____ Cabinetmaker & FDM
____ Family Handyman
____ Hand Loader
____ Popular Science
____ Popular Woodworking
____ Precision Shooter
____ Projects in Metal
____ RC Modeler
____ Rifle
____ Shop Notes
____ Wooden Boat
____ Woodshop News
____ Woodsmith
____ Handy
____ Woodwork
____ Home Shop Machinist
____ Journal of Light Cont.
____ Live Steam
____ Woodworker West
____ Woodworker’s Journal
____ Other:
____ Model Airplane News
____ Old House Journal
____ Popular Mechanics
____ Shotgun News
____ Today’s Homeowner
____ Wood
3. What is your annual household income?
____ $20,000-$29,000
____ $30,000-$39,000
____ $40,000-$49,000
____ $70,000+
____ $50,000-$59,000
____ $60,000-$69,000
4. What is your age group?
____ 20-29
____ 30-39
____ 60-69
____ 40-49
____ 70+
____ 50-59
5. How long have you been a woodworker/metalworker?
____ 0-2 Years ____ 2-8 Years
____ 8-20 Years
____20+ Years
____10+
6. How many of your machines or tools are Grizzly?
____ 0-2 ____ 3-5
____ 6-9
7. Do you think your machine represents a good value?
8. Would you recommend Grizzly Industrial to a friend?
_____Yes
_____Yes
_____No
_____No
9. Would you allow us to use your name as a reference for Grizzly customers in your area?
Note: We never use names more than 3 times. _____Yes _____No
10. Comments:_____________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
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FOLD ALONG DOTTED LINE
Place
Stamp
Here
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
FOLD ALONG DOTTED LINE
Send a Grizzly Catalog to a friend:
Name_______________________________
Street_______________________________
City______________State______Zip______
TAPE ALONG EDGES--PLEASE DO NOT STAPLE
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WARRANTY & RETURNS
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any par-
ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,
or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then issue
you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the carton. We
will not accept any item back without this number. Proof of purchase must accompany the merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
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