Grizzly Sander G0459 User Manual

MODEL G0459

12" DRUM SANDER

OWNER’S MANUAL

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

#BL7307 PRINTED IN TAIWAN

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Table of Contents

INTRODUCTION............................................................................................................................... 3

Foreword .................................................................................................................................... 3

Contact Info................................................................................................................................ 3

Machine Data Sheet................................................................................................................... 4

Identification ............................................................................................................................... 5

SECTION 1: SAFETY....................................................................................................................... 6

Safety Instructions for Machinery............................................................................................... 6

Additional Safety for Drum Sanders........................................................................................... 8

SECTION 2: CIRCUIT REQUIREMENTS ........................................................................................ 9

110V Operation.......................................................................................................................... 9

SECTION 3: SET UP...................................................................................................................... 10

Set Up Safety........................................................................................................................... 10

Items Needed for Set Up ......................................................................................................... 10

Unpacking ................................................................................................................................ 10

Inventory................................................................................................................................... 11

Site Considerations.................................................................................................................. 11

Placing Sander......................................................................................................................... 12

Mounting................................................................................................................................... 12

Installing Crank Handle............................................................................................................ 13

Dust Collection......................................................................................................................... 13

Test Run................................................................................................................................... 14

Recommended Adjustments.................................................................................................... 14

SECTION 4: OPERATIONS ........................................................................................................... 15

Operation Safety ...................................................................................................................... 15

Switch/Lockout ......................................................................................................................... 15

Depth of Cut............................................................................................................................. 16

Variable Speed......................................................................................................................... 16

Sanding .................................................................................................................................... 17

Sanding Tips ............................................................................................................................ 17

Choosing Sandpaper ............................................................................................................... 18

Paper Replacement ................................................................................................................. 18

SECTION 5: ACCESSORIES......................................................................................................... 19

SECTION 6: MAINTENANCE ........................................................................................................ 21

Schedule .................................................................................................................................. 21

Cleaning ................................................................................................................................... 21

Lubrication................................................................................................................................ 21

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SECTION 7: SERVICE ................................................................................................................... 23

Troubleshooting........................................................................................................................ 23

Gauge Blocks........................................................................................................................... 26

V-Belt Service .......................................................................................................................... 26

Conveyor Tensioning & Tracking............................................................................................. 28

Drum Adjustments.................................................................................................................... 29

Pressure Roller Height............................................................................................................. 31

Scale Pointer Calibration.......................................................................................................... 32

Table Lift Screws...................................................................................................................... 33

Conveyor Belt Replacement .................................................................................................... 34

Electrical Components ............................................................................................................. 39

Wiring Diagram ........................................................................................................................ 40

Frame Parts Breakdown .......................................................................................................... 41

Drum and Conveyor Parts Breakdown .................................................................................... 42

Parts List .................................................................................................................................. 43

Parts List .................................................................................................................................. 44

Safety Label Placement and Parts List.................................................................................... 45

WARRANTY AND RETURNS........................................................................................................ 46

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INTRODUCTION

Foreword

Contact Info

We are proud to offer the Model G0459 12" Drum

Sander. This machine is part of a growing Grizzly

family of fine woodworking machinery. When

used according to the guidelines set forth in this

manual, you can expect years of trouble-free,

enjoyable operation and proof of Grizzly’s com-

mitment to customer satisfaction.

If you have any comments regarding this manual,

please write to us at the address below:

Grizzly Industrial, Inc.

Technical Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

We are pleased to provide this manual with

the Model G0459. It was written to guide you

through assembly, review safety considerations,

and cover general operating procedures. It repre-

sents our effort to produce the best documenta-

tion possible.

We stand behind our machines. If you have any

service questions or parts requests, please call or

write us at the location listed below.

Grizzly Industrial, Inc.

1203 Lycoming Mall Circle

Muncy, PA 17756

Phone: (570) 546-9663

Fax: (800) 438-5901

The specifications, drawings, and photographs

illustrated in this manual represent the Model

G0459 as supplied when the manual was pre-

pared. However, owing to Grizzly’s policy of con-

tinuous improvement, changes may be made at

any time with no obligation on the part of Grizzly.

For your convenience, we always keep current

Grizzly manuals available on our website at www.

grizzly.com. Any updates to your machine will be

reflected in these manuals as soon as they are

complete. Visit our site often to check for the lat-

est updates to this manual!

E-Mail: techsupport@grizzly.com

Web Site: http://www.grizzly.com

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Machine Data Sheet

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Identification

Figure 1. Front view, Model G0459.

A. Top Cover

B. Cover Lock Knob

C. Dust Port

D. Handle

E. Crank Handle

F. Depth Scale

G. Drum Sander Frame

H. ON/OFF Switch

I. Variable Speed Control

J. Conveyor Belt

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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 which are intended to convey the level of

importance 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.

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

1. READ THROUGH THE ENTIRE MANUAL

BEFORE STARTING MACHINERY.

Machinery presents serious injury hazards

to untrained users.

4. ALWAYS USE HEARING PROTECTION

WHEN OPERATING MACHINERY.

Machinery noise can cause permanent

hearing damage.

5. WEAR PROPER APPAREL. DO NOT

wear loose clothing, gloves, neckties, rings,

or jewelry which may get caught in moving

parts. Wear protective hair covering to con-

tain long hair and wear non-slip footwear.

2. ALWAYS USE ANSI APPROVED

SAFETY GLASSES WHEN OPERATING

MACHINERY. Everyday eyeglasses only

have impact resistant lenses, they are

NOT safety glasses.

6. NEVER OPERATE MACHINERY WHEN

TIRED, OR UNDER THE INFLUENCE OF

DRUGS OR ALCOHOL. Be mentally alert

at all times when running machinery.

3. ALWAYS WEAR AN ANSI APPROVED

RESPIRATOR WHEN OPERATING

MACHINERY THAT PRODUCES DUST.

Wood dust is a carcinogen and can cause

cancer and severe respiratory illnesses.

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Safety Instructions for Machinery

7. ONLY ALLOW TRAINED AND PROP-

17. REMOVE ADJUSTING KEYS AND

ERLY SUPERVISED PERSONNEL TO

OPERATE MACHINERY. Make sure

operation instructions are safe and clearly

understood.

WRENCHES. Make a habit of checking for

keys and adjusting wrenches before turn-

ing machinery ON.

18. CHECK FOR DAMAGED PARTS

BEFORE USING MACHINERY. Check

for binding and alignment of parts, broken

parts, part mounting, loose bolts, and any

other conditions that may affect machine

operation. Repair or replace damaged

parts.

8. KEEP CHILDREN AND VISITORS AWAY.

Keep all children and visitors a safe dis-

tance from the work area.

9. MAKE WORKSHOP CHILD PROOF. Use

padlocks, master switches, and remove

start switch keys.

19. USE RECOMMENDED ACCESSORIES.

Refer to the instruction manual for recom-

mended accessories. The use of improper

accessories may cause risk of injury.

10. NEVER LEAVE WHEN MACHINE IS

RUNNING. Turn power OFF and allow all

moving parts to come to a complete stop

before leaving machine unattended.

20. DO NOT FORCE MACHINERY. Work at

the speed for which the machine or acces-

sory was designed.

11. DO NOT USE IN DANGEROUS

ENVIRONMENTS. DO NOT use machin-

ery in damp, wet locations, or where any

flammable or noxious fumes may exist.

21. SECURE WORKPIECE. Use clamps or

a vise to hold the workpiece when practi-

cal. A secured workpiece protects your

hands and frees both hands to operate the

machine.

12. KEEP WORK AREA CLEAN AND WELL

LIT. Clutter and dark shadows may cause

accidents.

22. DO NOT OVERREACH. Keep proper foot-

13. USE A GROUNDED EXTENSION CORD

RATEDFORTHEMACHINEAMPERAGE.

Undersized cords overheat and lose power.

Replace extension cords if they become

damaged. DO NOT use extension cords

for 220V machinery.

ing and balance at all times.

23. MANY MACHINES WILL EJECT THE

WORKPIECETOWARDTHEOPERATOR.

Know and avoid conditions that cause the

workpiece to "kickback."

14. ALWAYS DISCONNECT FROM POWER

24. ALWAYS LOCK MOBILE BASES

(IF USED) BEFORE OPERATING

MACHINERY.

SOURCE

BEFORE

SERVICING

MACHINERY. Make sure switch is in OFF

position before reconnecting.

25. BE AWARE THAT CERTAIN WOODS

MAY CAUSE AN ALLERGIC REACTION

in people and animals, especially when

exposed to fine dust. Make sure you

know what type of wood dust you will be

exposed to and always wear an approved

respirator.

15. MAINTAIN MACHINERY WITH CARE.

Keep blades sharp and clean for best and

safest performance. Follow instructions for

lubricating and changing accessories.

16. MAKE SURE GUARDS ARE IN PLACE

AND WORK CORRECTLY BEFORE

USING MACHINERY.

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Additional Safety for Drum Sanders

1. FEEDING STOCK. DO NOT allow anyone

to stand directly in front of this sander when

feeding your stock. Never sand more than

one piece of stock at a time.

6. DUST COLLECTION SYSTEM. Never

operate the sander without an adequate

dust collection system in place and run-

ning.

DO NOT jam the workpiece into the

machine during operation. Firmly grasp the

workpiece in both hands and ease it into

the machine using light pressure.

7. BE ATTENTIVE. Never leave the machine

running unattended.

8. REPLACING SANDING PAPER. Replace

sanding paper when it becomes worn or

damaged.

2. MINIMUM STOCK DIMENSIONS. DO NOT

sand any stock thinner than ⁄8", narrower

than ¹⁄8", or shorter than 8". DO NOT sand

thin stock by using a “dummy” board under

your workpiece.

9. EXPERIENCING DIFFICULTIES. Any

problem, with the exception of convey-

or belt tracking that is concerned with

any moving parts or accessories, must be

investigated and corrected with the power

disconnected, and after all moving parts

have come to a complete stop.

3. CLOTHING. DO NOT wear loose clothing

while operating this machine. Roll up or

button sleeves at the cuff.

4. HAND PROTECTION. DO NOT place

hands near, or in contact with, sanding

drums during operation. DO NOT allow

fingers to get pinched between board and

conveyor belt during operation. This may

pull the operator’s hand into the machine

and cause serious injury or death!

10. MAINTENANCE AND ADJUSTMENTS.

Never attempt to adjust conveyor belt track-

ing when the sanding drums are running.

Perform machine inspections and main-

tenance service promptly when called for.

Disconnect power before performing main-

tenance or adjustments on the sander.

5. INSPECTING WORKPIECES. Always

inspect one workpiece at a time for nails,

staples, knots, and other imperfections that

could be dislodged and thrown from the

machine during sanding operations.

11. RESPIRATOR AND SAFETY GLASSES.

Always wear a respirator and safety glass-

es while operating the machine. Dust and

chips are created when sanding. Some

debris will be ejected, becoming hazards to

the eyes and lungs.

No list of safety guidelines can be complete.

Every shop environment is different. Always

consider safety first, as it applies to your

individual working conditions. Use this and

other machinery with caution and respect.

Failure to do so could result in serious per-

sonal injury, damage to equipment, or poor

work results.

Like all machines there is danger associ-

ated with the Model G0459. Accidents are

frequently caused by lack of familiarity or

failure to pay attention. Use this machine

with respect and caution to lessen the pos-

sibility of operator injury. If normal safety

precautions are overlooked or ignored, seri-

ous personal injury may occur.

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SECTION 2: CIRCUIT REQUIREMENTS

110V Operation

Electrocution or fire could

result if this machine is

not grounded correctly or

if your electrical configu-

Serious personal injury could occur if you

ration does not comply

connect the machine to the power source

with local and state codes.

before you have completed the set up pro-

Ensure compliance by

cess. DO NOT connect the machine to the

checking with a qualified

power source until instructed to do so.

electrician!

Amperage Draw

The a 1¹⁄2 HP motor on the Model G0459 will

draw the following amps:

Motor Draw............................................ 18 Amps

Circuit Requirements

Only connect your machine to a circuit that meets

the requirements below. Always check to see if

the wires and circuit breaker in your circuit are

capable of handling the amperage draw from

your machine, as well as any other machines that

could be operating on the same circuit. If you are

unsure, consult a qualified electrician.

Minimum Circuit Requirement.................25 Amp

This machine must have a ground prong in

the plug to help ensure that it is grounded.

Plug/Receptacle Type

Included Plug Type........................... NEMA 5-15

DO NOT remove ground prong from plug

to fit into a two-pronged outlet! If the plug

will not fit the outlet, have the proper outlet

installed by a qualified electrician.

Extension Cords

We do not recommend the use of extension

cords. If you find it absolutely necessary to use

an extension cord with your machine:

•

Use at least a 10 gauge cord that does not

exceed 50 feet in length!

The extension cord must also contain a

ground wire and plug pin.

Figure 2. Typical type 5-15 plug and receptacle.

A qualified electrician MUST size cords over

50 feet long to prevent motor damage.

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SECTION 3: SET UP

Set Up Safety

Items Needed for

Set Up

The following items are needed to complete the

set up process, but are not included with your

machine:

This machine presents

serious injury hazards

to untrained users. Read

through this entire manu-

al to become familiar with

the controls and opera-

tions before starting the

machine!

Description

Qty

•

Safety Glasses (for each person) .............. 1

An Assistant ............................................... 1

Dust Collection System.............................. 1

Dust Hoses 2¹⁄2" ..................(Length Varies)

Hose Clamp 2¹⁄2" ..............................(Varies)

Lag Bolts ⁵⁄16-18 x 40 (Not Included) .......... 4

Open End Wrench or Socket ¹⁄2"................ 1

Phillips Head Screwdriver #2 ..................... 1

Drill ............................................................. 1

Drill Bit ¹⁄4"................................................... 1

Wear safety glasses dur-

ing the entire set up pro-

cess!

Unpacking

The Model G0459 is a

heavy machine (146 lbs.

shipping weight). DO

NOT over-exert yourself

while unpacking or mov-

ing your machine—get

assistance.

The Model G0459 was carefully packed when it

left our warehouse. If you discover the machine

is damaged after you have signed for delivery,

please immediately call Customer Service at

(570) 546-9663 for advice.

Save the containers and all packing materials for

possible inspection by the carrier or its agent.

Otherwise, filing a freight claim can be difficult.

When you are completely satisfied with the con-

dition of your shipment, you should inventory the

contents.

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Inventory

Site Considerations

After all the parts have been removed from the

two boxes, you should have the following items:

Floor Load

Refer to the Machine Data Sheet for the weight

and footprint specifications of your machine.

Some workbenches may require additional rein-

forcement to support both the machine and the

workpiece.

Box 1: (Figure 3)

Qty

A. Drum Sander.............................................. 1

B. Crank Handle ............................................. 1

C. 2¹⁄2" Dust Port............................................. 1

D. 3mm Hex Wrench ...................................... 1

Working Clearances

Consider existing and anticipated needs, size of

material to be processed through each machine,

and space for auxiliary stands, work tables or

other machinery when establishing a location for

your new machine. See Figure 4 for the minimum

working clearances.

26.5"

24"

Figure 3. G0459 Inventory.

In the event that any nonproprietary parts are

missing (e.g. a nut or a washer), we would be

glad to replace them, or for the sake of expedi-

ency, replacements can be obtained at your local

hardware store.

Figure 4. Minimum working clearances.

Unsupervised children and

visitors inside your shop

could cause serious per-

sonal injury to themselves.

Lock all entrances to the

shop when you are away and

DO NOT allow unsupervised

children or visitors in your

shop at any time!

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Placing Sander

Mounting

Components and Hardware Needed:

Qty

Lag Bolts ⁵⁄16-18 x 40 (Not Included) ..................4

Flat Washers ⁵⁄16 (Not Included) ........................4

The Model G0459 is a

heavy machine (139 lbs.).

DO NOT over-exert your-

self while unpacking or

moving your machine—

get assistance.

To mount the drum sander to a bench top:

1. Place the sander on a bench top capable

of holding approximately 140 lbs. plus the

weight of the workpiece. Make sure the sur-

face is flat and stable.

To place the sander in a permanent location:

2. Drill four ⁄4" holes on the bench, using the

holes in the base as a guide.

1. With an assistant's help, lift the sander out of

the box and move it to your predetermined

location.

3. Using a ⁄2" wrench, bolt the base to the

bench top with ⁵⁄16" lag bolts and flat washers

as shown in Figure 5.

Figure 5. Installing sander onto bench top.

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Installing Crank

Handle

Dust Collection

Components and Hardware Needed:

Qty

Dust Hoses 2¹⁄2" (not included)...... Length Varies

Hose Clamps (not included).......................Varies

Dust Collection System (not included) ...............1

Components and Hardware Needed:

Crank Handle .................................................... 1

Qty

This drum sander requires a minimum of 400

CFM AT THE DUST PORT.

The crank handle is installed on the front right

lift screw shaft, and is held in place with two set

screws already threaded into the handle.

Note: Do not confuse this CFM recommendation

with the rating of the dust collector. To determine

the CFM at the dust port, you must take into

account many variables, including the rating of

the dust collector, the length of hose between the

dust collector and the machine, the amount of

branches or wyes, and the amount of other open

lines throughout the system.

To mount the handwheel:

1. Place the crank handle over the shaft shown

in Figure 6 and, using a 3mm hex wrench,

secure the handle with the two set screws.

A fine layer of dust will be present on your stock

as it comes out of the sander. This is normal.

To connect the dust port to a dust collector:

1. Remove the four Phillips head screws at the

dust port hole.

2. Place the 2¹⁄2" dust port over the top cover

mounting holes and secure with the Phillips

head screws removed in Step 1 as shown in

Figure 7.

Figure 6. Crank handle installation.

3. Attach a 2¹⁄2" dust collection hose to the dust

port and secure it with a hose clamp.

Figure 7. Dust port installation.

4. Connect the sander to the power source.

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Test Run

Recommended

Adjustments

Now that the machine is connected to the power

source, it is important to perform a test run to

make sure all the controls are working properly.

For your convenience, the adjustments listed

below have been performed at the factory and

no further setup is required to operate your

machine.

Before starting the sander, make sure you

have performed the preceding assembly

and adjustment instructions, and you have

read through the rest of the manual and

are familiar with the various functions and

safety issues associated with this machine.

Failure to follow this warning could result in

serious personal injury or even death!

However, because of the many variables involved

with shipping, some of these adjustments may

need to be repeated to ensure optimum results.

Keep this in mind as you start to use your new

drum sander.

Step-by-step instructions for these adjust-

ments can be found in SECTION 7: SERVICE

ADJUSTMENTS.

To test run the sander:

1. V-Belt Service (Page 26). Perform after the

first 16 hours.

1. Put on safety glasses and make sure any

bystanders are out of the way and also wear-

ing safety glasses.

2. Conveyor Tensioning & Tracking (Page 28).

3. Drum Adjustments (Page 29).

2. Flip the ON/OFF switch ON. Make sure

that your finger is poised over the ON/OFF

switch, just in case there is a problem.

4. Pressure Roller Height (Page 31).

The drum sander should run smoothly, with

little or no vibration or rubbing noises. Strange

or unnatural noises should be investigated

and corrected before operating the machine

further. To avoid injury or damage to the

machine, DO NOT attempt to make adjust-

ments to the machine without turning it OFF

and unplugging it from its power source.

Investigate and correct any problems before

operating the machine further. If you need help,

refer to the Troubleshooting section in the back

of this manual or contact Tech Support at (570)

546-9663.

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SECTION 4: OPERATIONS

Operation Safety

Switch/Lockout

The ON/OFF switch can be locked-out to prevent

unauthorized use.

Damage to your eyes, lungs, and ears could

result from using this machine without

proper protective gear. Always wear safety

glasses, a respirator, and hearing protection

when operating this machine.

To turn the switch ON and OFF:

1. To turn the sander ON, flip the switch up.

2. To turn the sander OFF, press the switch

down.

3. To lock-out the switch, remove the yellow key

from the switch housing, as shown in Figure

8. Place the key in a safe place.

Loose hair and cloth-

ing could get caught in

machinery and cause seri-

ous personal injury. Keep

loose clothing and long

hair away from moving

machinery.

NOTICE

Figure 8. Locking-out.

If you have never used this type of machine

or equipment before, WE STRONGLY REC-

OMMEND that you read books, trade maga-

zines, or get formal training before begin-

ning any projects. Regardless of the con-

tent in this section, Grizzly Industrial will

not be held liable for accidents caused by

lack of training.

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Depth of Cut

Variable Speed

The optimum depth of cut will vary based on

the type of wood, feed rate, and sandpaper grit.

Under most sanding conditions, the depth should

The variable speed knob allows you to increase

the feed rate from 0–15 FPM. The correct speed

to use depends on the type of stock you are using

(hardwood vs. softwood) and the stage of finish

you are at with that workpiece.

not exceed 0.006" (0.15 mm) (approx. ⁄4 turn of

the handwheel). Each full turn of the crank handle

raises the conveyor table approximately 0.027"

(0.69 mm). Attempts to remove too much material

can cause jamming, wood burning, rapid paper

wear or tearing, poor finish, belt slippage, and

motor damage.

As a general rule, a slower feed rate will sand

the surface smoother, but runs the risk of burning

the wood; a faster feed rate will remove material

faster, but runs the risk of overloading the motor.

Use trial-and-error to determine the best settings

for your specific applications.

To set the depth of cut:

1. Rotate the crank handle (Figure 9) until the

table is well below the sanding drum, then

raise the table, allowing a gap between the

workpiece and the drum.

To adjust the conveyor speed:

1. Start the conveyor.

2. Rotate the variable speed knob (Figure

10) clockwise to increase the feed speed,

or counterclockwise to decrease the feed

speed.

Note: When adjusting the table to sand a

thicker workpiece, lower and then raise the

table to remove backlash from the adjust-

ment mechanism. If the table is lowered too

far, the conveyor belt may rub against the

chain, leaving grease on the belt.

Figure 10. Variable speed knob.

Figure 9. Setting depth of cut.

2. Turn the sander ON, start the conveyor (see

Variable Speed, on this page), and feed the

workpiece into the sander. SLOWLY raise

the conveyor table until the workpiece makes

light contact with the sanding drum. This

is the correct height to begin sanding the

workpiece.

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Sanding

Sanding Tips

•

Replace the sandpaper with a higher grit to

achieve a finer finish.

DO NOT sand more than one board at a time.

Minor variations in thickness can cause one

board to be propelled by the rapidly spinning

sanding drum and ejected from the machine.

NEVER stand directly in front of the outfeed

area of the machine. Failure to do so could

result in severe personal injury.

Raise the table with a maximum of ⁄4 turn of

the crank handle until the workpiece is the

desired thickness.

•

Reduce snipe when sanding more than one

board of the same thickness by feeding them

into the sander with the front end of the sec-

ond board touching the back end of the first

board.

To sand a workpiece:

•

Feed boards into the sander at different points

on the conveyor to maximize sandpaper life

and prevent uneven conveyor belt wear.

1. Adjust the table height according to the

instructions in Depth of Cut on Page 16.

2. Start the dust collector, turn the sander ON,

DO NOT sand boards less than 8" long or

and start the conveyor.

less than ⁄8" thick to prevent damage to the

workpiece and the drum sander.

3. Feed the workpiece through the sander.

Retrieve the workpiece by standing at the

side—not at the outfeed end.

Extend the life of the sandpaper by regularly

using a PRO-STICK^®sanding pad (Page

19).

4. Run wide stock through two or three times

without adjusting the table height. Turn the

stock 180° between passes to ensure an

even cut.

When sanding workpieces with irregular sur-

faces, such as cabinet doors, take very light

sanding passes to prevent gouges. When

the drum moves from sanding a wide surface

to sanding a narrow surface, the load on

the motor will be reduced, and the drum will

speed up, causing a gouge.

•

DO NOT edge sand boards. This can cause

boards to kickback, causing serious personal

injury. Edge sanding boards also can cause

damage to the conveyor belt and sandpa-

per.

•

When sanding workpieces with a bow or

crown, place the high point up (prevents the

workpiece from rocking) and take very light

passes.

Feed the workpiece at an angle to maximize

stock removal and sandpaper effectiveness,

but feed the workpiece straight to reduce

sandpaper grit scratches for the finish pass-

es.

-17-

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4. Use the old sandpaper as a pattern to cut

out the new sandpaper, or use the pattern in

Figure 11, to cut the sandpaper to the nec-

essary shape.

Choosing Sandpaper

There are many types of sanding belts to choose

from. We recommend Aluminum Oxide for gen-

eral workshop environments. Below is a chart

that groups abrasives into different classes, and

shows which grits fall into each class.

�

�� ^�

Grit

Class

Usage

��

Extra Coarse Rough sawn boards,

thickness sanding,

�

�� ^�

and glue removal.

��

Coarse

Thickness sanding

and glue removal.

80–100 Medium

120–180 Fine

Removing

marks and initial finish

sanding.

planer

Figure 11. Sandpaper pattern.

Finish sanding.

5. Wrap the sanding drum with the new sandpa-

per. Make sure to wrap the sandpaper tight

and try to keep the gaps to a minimum.

The general rule of thumb is to sand a workpiece

with progressively higher grit numbers, with no

one grit increase of more than 50. Avoid skipping

grits; the larger the grit increase, the harder it will

be to remove the scratches from the previous

grit.

6. Tape both ends with ⁄4" strapping tape

(Figure 12), making at least two complete

passes so that the second layer is directly on

top of the first.

Ultimately, the type of wood you use and your

stage of finish will determine the best grit types to

install on your sander.

Paper Replacement

The Model G0459 is designed for 3" wide hook-

and-loop sandpaper rolls.

To change sandpaper on the G0459:

1. Disconnect the sander from the power

source!

Figure 12. Sandpaper ends taped on

Model G0459.

2. Open the top cover to expose the drum.

3. Unwind the old sandpaper and notice the

direction that it was wrapped around the

drum.

-18-

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SECTION 5: ACCESSORIES

Aluminum Oxide Sanding Rolls, 3" x 50'

G7984—Face Shield

H4422—60 Grit: Use for thickness sanding and

glue removal.

H4779—80 Grit: Use for removing planer marks

and initial finish sanding.

H4423—100 Grit: Use for removing planer marks

and initial finish sanding.

H4780—120 Grit: Use for finish sanding.

H4424—150 Grit: Use for finish sanding.

H1298—Dust Sealed Safety Glasses

H1300—UV Blocking, Clear Safety Glasses

H2347—Uvex^®Spitfire Safety Glasses

H0736—Shop Fox^®Safety Glasses

Safety Glasses are essential to every shop. If

you already have a pair, buy extras for visitors

or employees. You can't be too careful when it

comes to shop safety!

H2499—Small Half-Mask Respirator

H3631—Medium Half-Mask Respirator

H3632—Large Half-Mask Respirator

H3635—Disposable Cartridge Filter Pair P100

Wood dust is now considered a known carcino-

gen and has been linked to nasal cancer and

severe respiratory illnesses. If you work around

dust everyday, a half-mask respirator can be a

lifesaver. Also compatible with safety glasses!

H1300

H1298

G7984

H0736

H2347

Figure 14. Our most popular safety glasses.

G3640—Power Twist^®V-Belt - ¹⁄2" x 48"

Smooth running with less vibration and noise

than solid belts. The Power Twist^®V-belt can be

customized in minutes to any size—just add or

remove sections to fit your needs. Size: ¹⁄2" x 48".

Requires one Power Twist^®V-belt to replace the

stock V-belt on your Model G0459.

Figure 13. Half-mask respirator and disposable

cartridge filters.

PRO-STICK^®Sanding Pad

Extend the life of your sandpaper! Just feed this

crepe-rubber cleaning pad through your drum

sander to remove dust build-up from the sandpa-

per without damage.

Size

Model

12" X 15" X ³⁄4" ........................................ H7331

Figure 15. G3640 Power Twist^®V-Belt.

-19-

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G3119—4" x 2¹⁄2" Adapter

G7313—Tool Table

Made with Anti-Static Additive! Made in USA.

Get that bench-top tool off your bench and put it

on this sturdy SHOP FOX^®stand instead! Flared

legs and adjustable rubber feet ensure stability

and reduce machine vibration. Butcher block fin-

G3124—Wire Hose Clamps - 2¹⁄2

G3123—Flexible Hose - 2¹⁄2" x 10'

Everything you need to hook your sander up to a

dust collector.

ish table top measures 13" x 23" and is 30¹⁄2

from the floor. Bottom measures 32" x 22". 700

lb. capacity. Perfect for the G0459!

Figure 16. Model G3123 Flexible Hose.

G1163—1HP Dust Collector

Figure 18. Model G7313 Tool Table.

Effective dust collection not only keeps your shop

cleaner and more pleasant to work in, it can also

keep you healthier. 1HP motor, 450 CFM, 2 cubic

feet bag capacity, 13¹⁄2" x 24" bag size, and 4"

intake hole make this a great companion to your

new sander!

G0572—Hanging Air Filter with Remote

This Hanging Air Filter has a convenient remote

control and features a three speed motor, auto-

matic shutoff timer and 1 micron inner filter and

5 micron outer filter. Air flow is 556, 702 and

1044 CFM. Overall size is 26"L x 19¹⁄2"W x 15"H.

Batteries for remote not included. Approximate

shipping weight 60 lbs.

Figure 17. Model G1163 Dust Collector.

Figure 19. Model G0572 Hanging Air Filter with

Remote.

-20-

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SECTION 6: MAINTENANCE

Lubrication

Always disconnect power

to the machine before

performing maintenance.

Failure to do this may

result in serious person-

The chain should be lubricated periodically with

a light machine oil. Motor bearings need no lubri-

cation. Use only adequate lubrication. Too much

lubricant will attract dirt and sawdust and will clog

al injury.

the chain mechanism.

Pillow Block Bearing: Must be lubricated every

20 hours of operation. Use a high-quality, lithium-

based grease. A grease fitting (Figure 20) is

located on the top of each pillow block bearing.

Schedule

For optimum performance from your machine,

follow this maintenance schedule and refer to any

specific instructions given in this section.

Daily Check:

•

Loose mounting bolts.

Worn switch.

Worn or damaged cords or plugs.

Damaged V-belt.

Any other unsafe condition.

DO NOT attempt to investigate or adjust

any features of the machine while it is run-

ning. Wait until the machine is turned OFF,

unplugged, and all working parts have come

to a rest before you do anything!

Figure 20. Location to lubricate pillow block

bearing.

Cleaning

Cleaning the Model G0459 is relatively easy.

From time to time, vacuum wood dust off of the

internal components, especially the motor.

-21-

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Table Lift Screws: These should be lubricated

with lithium grease every six months.

Failure to routinely inspect your drum sander

for damage and wear could result in unsatis-

factory work results, premature component

or machinery failure, or operator injury. We

recommend you create a checklist for routine

inspection and maintenance. Remember to

always disconnect the drum sander from its

power source before attempting to inspect,

adjust, or repair this machine!

Clean the table lift screws (Figure 21) and rub

lithium grease onto the threads. Move the table

up or down to spread the grease thoroughly over

the threads.

Figure 21. Table lift screws.

-22-

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SECTION 7: SERVICE

This section is provided for your convenience—it is not a substitute for the Grizzly Service Department. If

you need help troubleshooting, you need replacement parts, or you are unsure of how to perform the pro-

cedures in this section, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Motor & Electrical

Symptom

Possible Cause

Possible Solution

Machine does not 1. Plug or receptacle is at fault or wired incor- 1. Test power plug and receptacle for good contact and

start or a breaker

trips.

rectly.

correct wiring.

2. Start capacitor is faulty.

2. Test and replace capacitor as required (see photo,

Page 39).

3. Motor connection is wired incorrectly.

3. Correct motor wiring (see Page 40).

4. Make sure all hot lines and grounds are operational

and have correct voltage on all legs.

5. Adjust or replace the centrifugal switch.

6. Replace faulty ON button or ON/OFF switch (see

photo, Page 39).

4. Power supply is faulty, or is switched OFF.

5. Centrifugal Switch is at fault.

6. Motor ON button or ON/OFF switch is faulty.

7. Motor is at fault.

7. Test, repair or replace motor.

Machine

vibration or noisy

operation.

has 1. Motor or component is loose.

1. Inspect, replace for stripped or damaged bolts/nuts,

and re-tighten with thread locking fluid.

2. Replace dented fan cover, and replace loose or dam-

aged fan.

2. Motor fan is rubbing on fan cover.

3. V-belt(s) is worn or is loose.

4. Pulley is loose.

3. Inspect belt(s), replace as matched sets, and re-ten-

sion.

4. Remove pulley, replace shaft, pulley, setscrew, and

key as required, and realign.

5. Motor bearings are at fault.

6. Centrifugal switch.

5. Check bearings, replace motor or bearings as

required.

6. Normal snap/click sound on RPM wind down. No

problem exists.

Motor overheats. 1. Motor overloaded.

2. Air circulation through the motor restricted.

1. Reduce load on motor.

2. Clean off motor to provide normal air circulation.

-23-

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Sanding Operations

Symptom

Possible Cause

Possible Solution

Machine stalls or 1. Dust collection ducting is at fault.

is underpowered.

1. Seal all leaks, size ducts correctly, eliminate bends,

and refer to Dust Collection Basics Handbook (ISBN

0-9635821-2-7) for further recommendations.

2. Make sure all hot lines and grounds are operational

and have correct voltage on all legs.

2. Low power supply voltage.

3. Belt is slipping.

3. Replace bad belt, align pulleys, and re-tension.

4. Correct motor wiring (see Page 40).

4. Motor connection is wired incorrectly.

5. Plug or receptacle is at fault.

5. Test power plug and receptacle for good contact and

correct wiring.

6. Pulley or sprocket is slipping on shaft.

7. Motor bearings are at fault.

6. Replace loose pulley and shaft.

7. Rotate motor shaft for noisy or burnt bearings, repair/

replace as required.

8. Machine is undersized for the task.

9. Motor has overheated.

8. Use new sandpaper with appropriate grit, and reduce

the feed rate/depth of sanding.

9. Unobstructed motor cooling air flow, let motor cool,

and reduce workload on machine.

10.Centrifugal switch is at fault.

11.Motor is at fault.

10.Adjust or replace the centrifugal switch.

11.Test, repair or replace motor.

Machine lacks 1. V-belt loose.

1. Tighten V-belt (Page 26).

power;

stops

under load.

drum

turning

2. Too much pressure on pressure rollers.

2. Reduce pressure roller pressure (Page 31).

1. Tighten V-belt (Page 26).

Machine slows 1. V-belt loose.

when sanding,

making a squeal-

ing noise, espe-

2. V-belt worn out.

cially on start-up.

2. Replace V-belt (Page 27).

Loud repetitious 1. Pulley setscrews or keys are missing or loose. 1. Inspect keys and setscrews. Replace or tighten if nec-

noise

from machine.

coming

essary.

2. Motor fan is hitting the cover.

2. Adjust fan cover mounting position, tighten fan, or

shim fan cover.

3. V-belt is defective.

3. Replace V-belt (Page 27).

Vibration when 1. Loose drum pillow block bearings.

sanding.

1. Tighten drum pillow block bearings.

2. Replace drum pillow block bearings.

2. Worn drum pillow block bearings.

G r i n d i n g , 1. Drum bearings lack sufficient grease.

screeching, or

1. Grease the pillow block bearings (Page 21).

rubbing

when

drum is powered

up.

noise

sanding

2. Drum bearings are worn and need replace- 2. Replace the drum bearings.

ment.

-24-

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Symptom

Possible Cause

Possible Solution

Short V-belt lifes- 1. Pulleys not aligned correctly.

pan.

1. Align pulleys (Page 27).

2. Improperly tensioned.

2. Properly tension V-belts (Page 26).

Conveyor slips 1. Conveyor is too loose.

under load.

1. Tension conveyor (Page 28).

2. Too much load.

2. Decrease load.

Conveyor tracks 1. Conveyor tracking is incorrect.

to one side; con-

1. Track the conveyor so it runs straight (Page 28).

veyor hits the

roller cover.

Workpiece pulls 1. The sanding drum is not parallel with the table. 1. Adjust the sanding drum parallel to the table (Page

to one side dur-

ing sanding oper-

ations.

29).

Excessive snipe. 1. Too much pressure from all the pressure roll- 1. Reduce pressure roller pressure (Page 31).

ers.

2. Too much pressure from the rear pressure 2. Reduce rear pressure roller pressure (Page 31).

roller.

3. Lack of outfeed support.

3. Set up outfeed table or have someone catch the

workpiece as it comes out.

Workpiece kicks 1. Not enough pressure from the pressure rollers. 1. Increase pressure roller pressure (Page 31).

out of sander.

Sandpaper tears 1. Nail/staple in workpiece.

1. Sand only clean workpieces.

off drums during

operation.

2. Sandpaper not tightened or fastened correctly. 2. Install the sandpaper correctly (Page 18).

3. Drum not perpendicular to the feed direction.

3. Adjust the drum perpendicular to the feed direction

(Page 29).

Table

eleva- 1. Table lift screws are dirty or loaded with saw- 1. Clean and regrease table lift screws (Page 22).

tion controls are

stiff and hard to

adjust.

dust.

Poor dust collec- 1. Dust collection lines incorrectly sized for this 1. Use at least an 8" main line with two 6" branch lines

tion.

machine.

2. Dust collector underpowered or too far away 2. Upgrade your dust collector or decrease the distance

that each Y into 2¹⁄2" at the machine.

from this machine.

from the dust collector to the machine.

Grease on con- 1. Chain too low.

veyor belt

1. Raise table far enough up so it doesn't touch chain.

-25-

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Gauge Blocks

V-Belt Service

Tools Needed:

Qty

Tools Needed:

Qty

6' Long 2x4........................................................ 1

Miter Saw (or Circular Saw) .............................. 1

Jointer................................................................ 1

Table Saw ......................................................... 1

Hex Wrench 6mm.............................................. 1

Wrench 12mm................................................... 1

Straightedge ...................................................... 1

Ruler.................................................................. 1

Phillips Head Screwdriver #2 ............................ 1

The gauge blocks described here will be required

to complete most of the service procedures in this

section.

Tension

A new V-belt often stretches and loosens up dur-

ing the first 16 hours of use. After this period, it

should be inspected and re-tensioned if neces-

sary.

To make the gauge blocks:

1. Edge joint the concave edge of the 2x4 flat

on a jointer, as shown in Figure 22.

Proper tension is important for optimum power

transmission. However, too much tension may

cause premature bearing failure.

To test V-belt tension:

1. Remove the right handle and side panel.

2. Using a straightedge and ruler (Figure 24),

push on the middle of the V-belt. The correct

V-belt tension is achieved when the V-belt

can be deflected ¹⁄2"–³⁄4" with moderate pres-

sure.

Figure 22. Edge jointing on a jointer.

2. Place the jointed edge of the 2x4 against the

table saw fence and rip cut just enough off

the opposite side to square up the two edges

of the 2x4, as shown in Figure 23.

Opposite

Edge Rip

Cut with

Previously

Jointed Edge

Held Against

Fence

Table Saw

Figure 23. Rip cutting on a table saw.

3. Cut the 2x4 into two even pieces to make two

36" long wood gauge blocks.

Figure 24. Checking V-belt tension with a

straightedge and a ruler.

Note: Steps 1 & 2 can be skipped, but having

these wood gauge blocks at an even height is

critical to the accuracy of your overall adjust-

ments.

3. Reinstall the side panel and handle.

-26-

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To adjust V-belt tension:

Pulley Alignment

Pulley alignment is another important factor in

power transmission and belt life. The pulleys

should be parallel to each other and in the same

plane (coplaner) for optimum performance.

1. DISCONNECT POWER TO THE SANDER!

2. Open the rear panel.

3. Loosen the motor mount bolts and raise or

lower the motor bracket, as shown in Figure

25, to loosen or tighten the V-belt.

Each pulley can be adjusted by loosening the set

screws that secure the pulley to the shaft, sliding

the pulley in/out, and retightening the set screws

to lock the pulley in place.

4. Tighten the motor mount bolts and replace

the rear panel.

To align the pulleys:

1. DISCONNECT POWER TO THE SANDER!

2. Remove the right handle and side panel.

3. Remove the V-belt.

Tighten

V-Belts

4. Place a straightedge across the face of the

motor pulley and drum pulley to check the

alignment. The straightedge should sit evenly

on the top and bottom part of both pulleys, as

shown in Figure 26.

Motor

Plate

Bracket

Loosen

V-Belts

Bolts

Figure 25. V-belt tension controls.

Removal/Replacement

Replace the V-belt if you notice fraying, cracking,

glazing, or any other damage. A worn/damaged

V-belt will not provide optimum power transmis-

sion from the motor to the drums.

V-belt removal and replacement is simply a matter

of loosening the V-belt, rolling it off of the pulleys,

replacing it, and re-tensioning it.

Figure 26. Checking pulley alignment with a

straightedge.

5. Adjust the pulleys as necessary until they are

all coplanar with each other.

6. Reinstall the side panel and handle.

-27-

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2. Turn both of the conveyor adjustment bolts

counterclockwise one full turn at a time until

the conveyor belt no longer slips during

operation.

Conveyor Tensioning

& Tracking

—If the conveyor starts tracking to one side,

immediately turn the drum sander OFF and

perform the tracking instructions.

Tools Needed:

Wrench 19mm................................................... 1

Phillips Head Screwdriver #2 ............................ 1

Qty

Tracking

Tensioning

The conveyor must track straight. If the conveyor

tracks to either side, then the tracking must be

corrected or the conveyor will become damaged

and have to be replaced.

The conveyor may slightly stretch with continued

use and will eventually need to be tensioned. This

is most obvious if the conveyor starts slipping on

the rollers.

Replacing a damaged conveyor is a big job.

Always be careful to make sure that the belt does

not travel too far to one side or the other.

When you tension the conveyor, focus on ten-

sioning the adjustment bolts in even increments.

Tensioning one side more than the other will

cause tracking problems, which will require you to

take additional steps to get the sander operating

correctly.

Tracking the conveyor is a balancing process that

takes patience and a small degree of trial-and-

error. Usually you must over-tighten the loose side

(the side the belt is tracking towards) to make the

conveyor move to the middle of the rollers, then

loosen that same side to make the conveyor stay

in position. If you adjust the bolt too much either

way, then you have to repeat the process until the

conveyor rides in the middle and stays there dur-

ing continuous operation.

To tension the conveyor:

1. Use a magic marker, correction fluid, or

fingernail polish to mark the front of the con-

veyor tensioning bolt on both sides (Figure

27). This step will aid you in keeping track

of the rotations as you turn the bolts, so they

remain as even as possible.

To track the conveyor:

1. Turn the conveyor ON and watch it track.

2. Determine which side the conveyor is track-

ing towards (the loose side) and tension the

adjustment bolt on that side until the con-

veyor tracks in the opposite direction.

Adjustment

Bolt

Note: Tracking changes may take up to three

minutes before they are noticeable.

3. When the conveyor is near the middle of the

rollers or table, loosen the adjustment bolt

until the conveyor stops moving and tracks

straight.

Figure 27. One side of conveyor tensioning &

tracking controls (guard removed for clarity).

—If the conveyor tracks too far to the other

side, then adjust the bolt as necessary to

bring it back and repeat Steps 2 & 3 until

the tracking is correct.

Note: Removing the front right and left roller

guard covers makes it easier to access the

adjustment bolts. Be sure to reinstall the

guards when adjustments are complete.

-28-

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1. DISCONNECT POWER TO THE SANDER!

2. Open the top cover.

Drum Adjustments

Tools Needed:

Qty

3. Loosen the lock nuts (see Figure 29) on the

Hex Wrench 4mm.............................................. 1

Wrench 19mm................................................... 1

Wrench 10mm................................................... 1

Socket 14mm .................................................... 1

Measuring Tape ................................................ 1

Gauge Blocks (see Page 26)............................ 2

Feeler Gauge Set.............................................. 1

drum pillow block bearing.

Pillow Block Bearing

For the Model G0459 Drum Sander to function

properly, the sanding drum must be aligned in

two directions: (1) parallel to the conveyor belt

and (2) perpendicular to feed direction.

Locknut

Setscrews

The drums can be adjusted in fine increments at

the pillow block bearings and in larger increments

by using the table lift screws (Page 33).

While adjusting the drum, keep in mind that hav-

ing the drum parallel to the conveyor belt is critical

to the sanding operation. Care should be taken to

make the tolerances as close as possible (within

0.002" from one side to the other) when adjusting

the drum height.

Figure 29. Pillow block bearing adjustments.

4. Place the gauge blocks on the conveyor table

and position them under the pressure rollers,

as shown in Figure 30.

The tolerances for having the drum perpendicular

to the feed direction are much more forgiving,

even allowing up to ⁄8" difference from one side

to the other before causing problems.

To align the sanding drum parallel to the con-

veyor belt (Figure 28):

��

Figure 30. Gauge blocks positioned under

pressure rollers and sanding drum.

5. Raise the table until the gauge blocks just

touch the bottom of the sanding drum.

Note: A good way to know when they are

touching is to rock the sanding drum back

and forth while raising the table until you hear

or feel contact with the gauge blocks.

Figure 28. Drum parallel to conveyor belt.

-29-

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6. Lower the table one full turn of the crank han-

dle. Wait until the chain starts moving before

starting to count the crank handle rotation.

To adjust the sanding drum perpendicular to

the feed direction (Figure 31):

7. Starting at one end, place a 0.002" feeler

gauge between the sanding drum and the

gauge block. (The feeler gauge should slide

with moderate resistance, without forcing the

drum to roll.)

��

8. Repeat Step 7 at the other end of the drum.

—If the difference between the two sides is

0.002" or less, skip to the subsection that

covers how to adjust the sanding drum

perpendicular to the feed direction on this

page.

��

Figure 31. Drum perpendicular to feed direction.

1. DISCONNECT POWER TO THE SANDER!

—If the difference between the two sides is

more than 0.002", then one side must be

adjusted to within 0.002" of the other (with

the ultimate goal of making them dead

even). Continue to the next step.

2. First measure the distance between the out-

side of the drum and the inside of the dust

scoop (Figure 32). The distances should be

To adjust the pillow block bearings:

within ⁄8" of each other at each end of the

drum.

1. Loosen the lock nuts (see Figure 29) on

one of the pillow block bearings that requires

adjustment.

Brace

Sanding Drum

2. Rotate the setscrews ¹⁄8 of a turn clockwise to

raise the pillow block bearings (see Figure

29).

Dust Scoop

Note: Turn all setscrew sets an equal

amount.

3. Tighten the lock nuts and recheck the align-

ment using the gauge blocks, repeating Steps

1–8 from the previous subsection. Tightening

the lock nuts will pull the drum downward

slightly. Be sure to adjust to compensate

for this movement. Do not over tighten the

lock nuts. The pillow block bearings can

break if over tightened.

Figure 32. Measuring distance between drum

and dust scoop.

3. If the measurements are not within ⁄8", the

drum can be moved by loosening the lock

nuts on the pillow block bearings and moving

one end of the drum forward or backward as

necessary in the slotted holes.

Note: After you have adjusted the drum, do

not forget to tighten the lock nuts and recheck

the alignment by repeating Steps 1–3.

-30-

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However, you can only minimize snipe so much

before the workpiece will slip or kick out, causing

a hazard to the operator. If this happens, you have

raised the pressure rollers too high for them to

function as intended—the pressure rollers MUST

be lowered to prevent injury.

Pressure Roller

Height

Tools Needed:

Qty

Wrenches/Sockets 10mm ................................. 1

Gauge Blocks (see Page 26)............................ 2

Raising the pressure rollers too high to min-

imize snipe will cause the workpiece to slip

or kick out, causing a hazard to the opera-

tor. You MUST lower the pressure rollers to

prevent injury!

Factory Setting:

Distance Below Sanding Drum ..... 0.080" (2mm)

The pressure rollers are factory set at 0.080"

(2mm) below the bottom of the sanding drum

and are fully adjustable either up/down with the

four lower adjustment bolts (Figure 33). After

the adjustment has been made, always lock the

jam nuts against the bottom to prevent them from

moving.

These instructions will restore the pressure rollers

to the factory setting.

To adjust the pressure rollers to the factory

setting:

1. DISCONNECT POWER TO THE SANDER!

2. Open the top cover.

Roller Mount

Bracket

Jam Nut

3. Place the gauge blocks on the conveyor table

and position them under all the pressure roll-

ers (Figure 30).

Lower Adjustment Bolts

4. Raise the table so the gauge blocks touch

the bottom of the sanding drum, as shown in

Figure 34.

Figure 33. Pressure roller adjustment hex nuts.

Proper pressure on the workpiece helps avoid

kickback and keeps the workpiece from slip-

ping. However, as pressure increases on the

workpiece, snipe also increases (some degree of

snipe is normal with all drum sanders).

If snipe becomes a problem, you can minimize it

by reducing pressure. To lower pressure, turn the

lower adjustment bolts counterclockwise to raise

the pressure roller height. To increase pressure,

turn the lower adjustment bolts clockwise (lower-

ing pressure rollers).

Figure 34. Gauge block touching bottom of

sanding drum.

-31-

G0459 12" Drum Sander

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5. Turn the crank handle three full rotations

(counting from the point of actual table move-

ment so handwheel freeplay does not affect

your count) to lower the table so the gauge

blocks are below the pressure rollers, as

shown in Figure 35.

Figure 36. Pressure rollers set correct distance

below bottom of sanding drum.

9. Tighten the jam nuts (Figure 33) to lock the

adjustment.

Figure 35. Gauge blocks below pressure rollers.

Scale Pointer

Calibration

Note: You may open the side covers to gain better

access for the following adjustments. This is not

required.

Tools Needed:

Phillips Head Screwdriver ................................. 1

Qty

6. Turn a lower adjustment bolt on one side of a

pressure roller clockwise to lower that end of

the pressure roller until it touches the gauge

block.

In order for the scale pointer to be accurate, it

must be calibrated.

7. Repeat Step 6 for the opposite side of the

We recommend calibrating your scale pointer

any time you adjust the drum height or table lift

screws.

same pressure roller.

8. Repeat Steps 6–7 with the second pressure

roller. Each pressure roller should look like

Figure 36 when properly adjusted.

To calibrate the scale pointer:

1. Sand a workpiece with the drum sander

and measure the thickness of the sanded

workpiece.

2. Loosen the screw that secures the scale

pointer and adjust it to the thickness of the

workpiece.

-32-

G0459 12" Drum Sander

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Table Lift Screws

Tools Needed:

Qty

Hex Wrench 6mm.............................................. 1

Wrench/Socket 12mm....................................... 1

Chalk, Correction Fluid, or Paint ....................... 1

Phillips Head Screwdriver #2 ............................ 1

Flat Head Screwdriver....................................... 1

The table lift screws are connected by a chain

and driven by the crank handle. (When the chain

is removed from a sprocket on one of the lift

screws, that lift screw can adjust that portion of

the table up/down independently to assist in set-

ting the table parallel to the drum.)

Figure 37. Marking sprocket tooth and chain.

5. Loosen the chain by loosening the hex nut on

the bottom of the idler roller sprocket shown

in Figure 38.

Adjusting the table lift screws will only be neces-

sary if you need to adjust the drum height more

than allowed at the pillow block bearing adjust-

ments, or if you have removed the table or chain

(see Page 37) during a service procedure and

you need to reset the drum parallel to the table.

Each complete tooth rotation on the sprocket

represents 0.007" or .18mm of table elevation

movement. For example, if the rear of the table

was 0.007" low, rotate both rear table lift screws

to the next sprocket tooth in the same chain posi-

tion. You can easily rotate the sprockets from

the top of the table lift screws with a flat head

screwdriver.

Figure 38. Idler roller sprocket.

To adjust the table lift screws:

6. Carefully move the chain off of only the

1. DISCONNECT POWER TO THE SANDER!

2. Open the right side and front panels.

marked sprocket.

7. Keep track of the marked chain hole and

rotate the sprocket the necessary number of

teeth away from the marked one to meet the

difference in height needed.

3. Raise the table up to at least the 1" mark on

the height scale.

4. At the lift screw that needs to be adjusted,

mark the end of a sprocket tooth and the

chain hole where that tooth is meshed, as

shown in Figure 37.

8. Fit the chain back over the sprocket, making

sure the new sprocket tooth is inserted into

the marked chain hole.

9. Re-tension the chain and check the new

height setting.

NOTICE

Marking the chain and sprocket locations

will save you a substantial amount of time

when you reinstall the chain. Make sure you

have done this before removing the chain.

10. Repeat Steps 5–9 as needed until the table

height is parallel to the drums in all four cor-

ners, tighten the idler sprocket and calibrate

the scale pointer.

-33-

G0459 12" Drum Sander

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Conveyor Belt

Replacement

Tools Needed:

Qty

Hex Wrench 6mm.............................................. 1

Wrench/Socket 19mm....................................... 1

Wrenches/Sockets 14mm ................................. 2

Wrench/Socket 12mm....................................... 1

Wrench 10mm................................................... 1

Phillips Head Screwdriver #2 ............................ 1

Measuring Tape ................................................ 1

Gauge Blocks (see Page 26)............................ 2

Feeler Gauge Set.............................................. 1

Assistant for Lifting Help ................................... 1

Flashlight or Work Light .................................... 1

Correction Fluid or Paint ................................... 1

Black Felt Tipped Pen....................................... 1

NEW

PHOTO

Figure 39. Locations to remove top cover

mounting hardware.

3. Remove the right handle and side panel (2

cap screws and 6 tap screws).

4. Remove the gear cover (2 Phillips head

screws) and loosen the 2 hex nuts securing

the brace and remove it.

Replacing the conveyor belt is a big job and

requires moderate mechanical skill and a fair

amount of patience. For planning purposes,

expect to have your machine out of operation for

at least a few hours.

5. Remove the dust scoop (4 hex bolts and

4 flat washers), compression springs and

spring plates (Figure 40) from the front pres-

sure roller and set the roller aside.

As you remove hardware to complete these

instructions, we recommend putting all the bolts,

screws, washers, etc. back into the holes from

which they came. This simple habit will take

slightly longer when disassembling the machine,

but it will save you a lot of time and reduce frus-

tration during reassembly.

Spring

Plate

To replace the conveyor belt:

Compression

Spring

1. DISCONNECT POWER TO THE SANDER!

2. Remove the top cover by loosening the hex

bolts and removing the Phillips head screws

(Figure 39) securing the top cover support.

Figure 40. Front pressure roller components.

-34-

G0459 12" Drum Sander

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6. Remove the rear pressure roller (4 hex bolts

and 4 flat washers) along with the brack-

ets, compression springs, and spring plates

shown in Figure 41.

9. Remove the sanding drum (4 lock nuts and 4

flat washers) and V-belt (Figure 43).

Spring

Plate

Compression

Spring

NEW

PHOTO

NEW

Bracket

PHOTO

Figure 43. Location to remove sanding drum

components.

Figure 41. Rear pressure roller components.

7. Remove the rear panel.

10. Remove the front roller end guard covers (4

Phillip head screws) and the rear roller end

guard covers (4 Phillip head screws), and set

the covers aside. The drum sander should

now look similar to Figure 44.

8. Loosen the hex bolts securing the motor

bracket to the frame, raise the motor and

remove the V-belt from the motor pulley (see

Page 27 for help). The drum sander should

now look similar to Figure 42.

Figure 44. Drum sander disassembled

to Step 10.

Figure 42. Drum sander disassembled

to Step 8.

-35-

G0459 12" Drum Sander

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11. Mark the top of the table lift screws with

arrows (all pointing in same direction) and

mark the screws with liquid correction fluid

above the mounting bracket (Figure 45).

Later, when you reassemble the conveyor

table, you can use these marks to reset the

table height close to the current position.

15. Disconnect the conveyor feed motor wires

from the circuit board.

16. Remove the scale pointer.

Before removing the table, note the number and

location of brass shims (Figure 47) under the

table lift screws. Knowing their correct position

will help you align the conveyor table during reas-

sembly.

Brass

Shims

NEW

PHOTO

Figure 45. Locations to mark table lift screws.

12. Mark the chain and sprockets with correction

Figure 47. Brass shims.

fluid.

17. With the help of an assistant, carefully lift

the table off of the drum sander cabinet, as

shown in Figure 48.

13. Loosen the idler roller sprocket (Figure 38),

carefully pull the chain off of all the sprockets,

and remove it from the cabinet.

14. Loosen the conveyor belt at the front adjust-

ments, as shown in Figure 46.

Figure 48. Lifting the table off of the drum

sander cabinet with two people.

Figure 46. Conveyor belt loosened at the front

adjustments (only one shown).

-36-

G0459 12" Drum Sander

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18. Lay the conveyor table on a flat surface.

19. Loosen the rear left (Figure 49) roller bracket

(2 cap screws) enough so the conveyor motor

chain is slack.

Rear Left

Roller

Bracket

Front

Right

Sprocket

Mounting

Bracket

Rear

Lift Screw

Figure 50. Conveyor belt removed from table.

27. Measure the distance between the front right

table lift screw sprocket and the mounting

bracket. If necessary, rotate the rear shaft so

the sprocket-bracket distance is the same as

the front right table lift screw.

Conveyor

Motor Chain

Motor

Figure 49. Rear left roller bracket loosened.

20. Remove the conveyor motor chain.

28. Install the new belt.

21. Remove the conveyor motor (2 cap screws)

and the rear roller bracket (2 cap screws)

shown in Figure 49.

29. Reinstall the front left and rear left table lift

screws to match the front right lift screw

height.

22. Remove the rear roller.

30. Reassemble the drum sander by reversing

the disassembly steps.

23. Remove the front left roller bracket (2 cap

screws) and the front roller.

31. After reassembly, adjust the drums and pres-

sure rollers to their proper settings. See Drum

Adjustments on Page 29 and Pressure

Roller Height on Page 31.

24. Remove the front right and rear roller brack-

ets (4 cap screws).

25. Place the right side of the conveyor on a flat

surface, then unthread and remove the front

and rear table lift screws.

32. After you have reinstalled the conveyor table,

make sure the four lower pressure roller

adjustment bolts are threaded the same dis-

tance into the roller mount brackets (Figure

33).

26. Remove the belt. The table should look like

Figure 50.

33. After reinstalling the top cover and brace,

tighten the mounting bolts.

-37-

G0459 12" Drum Sander

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34. Before reinstalling the gear box cover, try

raising and lowering the conveyor table with

the crank handle. If the worm wheel and

worm gear teeth (see Figure 51) are not

engaged, the crank handle will only raise the

table.

35. Reinstall and secure the brace.

36. Try moving the conveyor table up and

down.

37. Continue adjusting the worm wheel and

worm gear until the crank handle raises and

lowers the conveyor table.

If this happens, loosen the crank handle

mounting bolts, and move the worm gear

around until the teeth mesh with the worm

wheel, then secure the crank handle.

Worm

Gear

Worm

Wheel

Figure 51. Worm wheel and worm gear.

-38-

G0459 12" Drum Sander

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Electrical Components

Feed

Motor

Wires

Feed Motor

Black

Capacitor

Black

Drum

Motor

Black

Red

Ground

(Green)

Black

Wires from

Circuit Board

Wires from

Switch

White

Motor Wiring

Red

Drum Motor

Wires

Power Cord

Black (L1)

Switch Box

Circuit

Board

Feed

Motor

Wires

Red

(Neutral)

Variable

Speed

Wires

Ground

(Green)

Switch

Black

Variable

Speed

Control

Variable Speed Control, Circuit Board

Switch Box Wiring

-39-

G0459 12" Drum Sander

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Wiring Diagram

��

wiring diagram

-40-

G0459 12" Drum Sander

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Frame Parts Breakdown

12-1

12-2

14-1

211

8-7

8-4

8-3

8-5

119

113

8-7

8-1

101

117

118

119

114

115

8-7

8-1

8-2

103

8-7

8-1

109

107

104

8-6

7-1

8-6

108

112

7-2

8-6

5-1

7-1

7-2

20-1

5-1

100

20-7

20-6

30-1

57-2

20-2

20-5

30-2

20-3

30-3

20-4

209

209-1 57

57-1

-41-

G0459 12" Drum Sander

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Drum and Conveyor Parts Breakdown

89-1

92-1

65-1

51-1

50-2

50-1

50-2

49-1

51-1

102

-42-

G0459 12" Drum Sander

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Parts List

REF PART #

DESCRIPTION

REF PART #

DESCRIPTION

P0459001

PN02

FRAME

PN02

HEX NUT 5/16-18

FLAT WASHER 5/16

SIDE PANEL

PN03

HEX NUT 3/4-16

PW07

P0459036

PW06

TABLE FRAME

P0459004

P0459005

PSB09

FLAT WASHER 1/4

HANDLE

P0459038

P0459039

PW07

CONVEYOR MOTOR PLATE

CONVEYOR MOTOR

FLAT WASHER 5/16

KEY 5 X 5 X 20

5-1

CAP SCREW 5/16-18 X 5/8

SPROCKET

P0459006

P0459007-1

P0459007-2

P0459008-1

P0459008-2

P0459008-3

P0459008-4

PK06M

7-1

7-2

8-1

8-2

8-3

8-4

8-5

8-6

8-7

SPROCKET SHAFT

SPROCKET

PK34M

P0459043

PN05

CONVEYOR MOTOR CHAIN

HEX NUT 1/4-20

TABLE LIFT SCREW

BUSHING

PB05

HEX BOLT 1/4-20 X 3/4

PC BOARD CONSOLE UNIT

FLAT HD SCREW 1/4-20 X 5/8

HEX BOLT 1/4-20 X 1/2

LEFT ROLLER END GUARD COVER

RIGHT ROLLER END GUARD COVER

LEFT ROLLER BRACKET

RIGHT ROLLER BRACKET

FLT HD SCREW 1/4-20 X 1

VARIABLE SPEED CONTROL KNOB

SWITCH BOX

P0459046

PFH04

WORM WHEEL

KEY 5 X 5 X 10

49-1

50-1

50-2

PB19

P0459008-6

PW01

BRASS WASHER 1/2

FLAT WASHER 1/2

ELEVATION CHAIN

FRONT BRACE

P0459050-1

P0459050-2

P0459051

P0459051-1

PFH12

P0459009

P0459010

P0459011

P0459012

PS41

51-1

DEPTH SCALE

RIGHT SUPPORT ARM

PHLP HD SCREW 6-32 X 1/4

HEX NUT 6-32

P0459054

P0459056

P0459057

PN07

12-1

12-2

PN12

FLANGE SCREW 10-24 X 1/2

HEX NUT 10-24

P0459013

P0459014

P0459014-1

P0459015

P0459016

PSS03

DUST PORT

57-1

57-2

TOP COVER

PS06

PHLP HD SCREW 10-24 X 3/8

CAP SCREW 1/4-20 X 3/4

EXT TOOTH WASHER 5MM

SPECIAL BOLT

14-1

HINGE

PSB05

REAR BRACE

PTLW02M

P0459060

P0459061

P0459064

P0459065

P0459065-1

P0459066

P0459069

P0459070

P0459071

P0459073

P0459074

P0459077

PS06

REAR PANEL

SETSCREW 1/4-20 X 3/8

MOTOR PULLEY

KEY 1/4 X 1/4 X 1

1.5HP MOTOR 110V

MOTOR BRACKET

CAPACITOR 300MFD, 125VAC

CAPACITOR COVER

MOTOR WIRING COVER

FAN COVER

BUSHING SUPPORT

PLATE

P0459018

PK110

DRIVE ROLLER

P0459020

P0459020-1

P0459020-2

P0459020-3

P0459020-4

P0459020-5

P0459020-6

P0459020-7

PN02

65-1

IDLER ROLLER

20-1

20-2

20-3

20-4

20-5

20-6

20-7

TABLE

CONVEYOR BELT

PRESSURE ROLLER

SANDING DRUM

EXTERNAL RETAINING RING 19MM

BUSHING

MOTOR FAN

CENTRIFUGAL SWITCH

HEX NUT 5/16-18

HEX BOLT 5/16-18 X 3/4

HEX BOLT 1/4-20 X 5/8

FLAT WASHER 5/16

HEX NUT 1/4-20

SPRING PLATE

ADJUST PLATE

GROMMET

SCALE POINTER

PHLP HD SCREW 10-24 X 3/8

FLAT WASHER #10

PB507

PW03

PB02

P0459081

P0459082

PW02

PILLOW BLOCK BEARING

SETSCREW 5/16-24 X 1/2

FLAT WASHER 3/8

PW07

PN05

P0459026

P0459027

P0459028

PHTEK7

PLN01

LOCK NUT 3/8-16

P0459088

PB51

COMPRESSION SPRING

HEX BOLT 1/4-20 X 3/8

FLAT WASHER 1/4

TAP SCREW #8 X 3/8

POWER CORD

89-1

PW06

30-1

30-2

30-3

P0459030-1

P0459030-2

P0459030-3

P0459031

P0459032

P0459033

P0459090

P0459092

P0459092-1

P0459094

PVA36

BRACKET

MOTOR CORD

HOOK & LOOP SANDBELT

HOOK & LOOP DRUM COVER

DRUM PULLEY

VS POWER CORD

STRAIN RELIEF

FRONT PANEL

92-1

V-BELT A-36 4L360

SWITCH

PAW03M

HEX WRENCH 3MM

-43-

G0459 12" Drum Sander

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Parts List

REF PART #

DESCRIPTION

REF PART #

DESCRIPTION

100

101

102

103

104

107

108

109

112

P0459100

P0459101

PLN02

DUST SCOOP

113

114

115

117

118

119

209

P0459113

P0459114

PN08

CRANK HANDLE

WORM GEAR SHAFT BRACKET

LOCK NUT 1/4-20

SHAFT MOUNT

WORM GEAR

HANDLE

HEX NUT 3/8-16

P0459103

P0459104

P0459107

PB19

PW07

FLAT WASHER 5/16

HEX BOLT 5/16-18 X 1

SETSCREW 1/4-20 X 1/4

GRIZZLY NAMEPLATE-MINI

TAP SCREW #5 X 3/8

COVER LOCK KNOB

PB03

BUSHING

PSS11

G9987

HEX BOLT 1/4-20 X 1/2

COLLAR

P0459109

P0459112

209-1 P0459209-1

211 P0459211

GEAR COVER

-44-

G0459 12" Drum Sander

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Safety Label Placement and Parts List

Safety Label Placement

The safety labels on this machine warn and indicate how to protect the operator or bystander from

machine hazards. The machine owner MUST maintain the original label location and readability.

If a label is removed or becomes unreadable, REPLACE the label before using the machine. For

new labels, contact Grizzly Industrial Inc. at (570) 546-9663 or techsupport@grizzly.com.

214

215

213

216

217

212

209

218

REF PART #

DESCRIPTION

REF PART #

DESCRIPTION

P0459055

G9987

SPEED INDICATOR LABEL

GRIZZLY NAMEPLATE-MINI

MACHINE ID LABEL

215

216

217

218

P0459215

LABEL (KICKBACK HAZARD)

LABEL (DISCONNECT POWER)

LABEL(ELECTRICITY)

209

212

213

214

P0459216

P0459212

P0459213

PLABEL-22

PLABEL-14

PLABEL-12B

LABEL (DUST-EYE)

LABEL (READ MANUAL HORZ.)

LABEL (HAND PINCH IN BELT)

-45-

G0459 12" Drum Sander

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WARRANTY AND 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.

-46-

G0459 12" Drum Sander

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WARRANTY CARD

Name_____________________________________________________________________________

Street_____________________________________________________________________________

City _______________________ State_________________________ Zip _____________________

Phone #____________________ Email ________________________ Invoice #_________________

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?

____ Cabinet Maker

____ Family Handyman

____ Hand Loader

____ Popular Mechanics

____ Popular Science

____ Popular Woodworking

____ Practical Homeowner

____ Precision Shooter

____ Projects in Metal

____ RC Modeler

____ Today’s Homeowner

____ Wood

____ Wooden Boat

____ Woodshop News

____ Woodsmith

____ Handy

____ Home Shop Machinist

____ Journal of Light Cont.

____ Live Steam

____ Model Airplane News

____ Modeltec

____ Woodwork

____ Woodworker West

____ Woodworker’s Journal

____ Other:

____ Riﬂe

____ Shop Notes

____ Old House Journal

____ Shotgun News

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

____ 6-9

____20+ Years

____10+

6. How many of your machines or tools are Grizzly?

____ 0-2 ____ 3-5

7. Do you think your machine represents a good value?

8. Would you recommend Grizzly Industrial to a friend?

_____Yes

_____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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