Grizzly Sander G1066 User Manual

DRUM SANDER  
MODEL G1066/G1066Z/G1079  
INSTRUCTION MANUAL  
Model G1066  
Model G1066Z  
COPYRIGHT © MAY, 2002 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.  
THE INFORMATION IN THIS MANUAL REPRESENTS THE CONFIGURATION OF THE MACHINE AS IT IS CURRENTLY BEING SHIPPED. THE  
MACHINE CONFIGURATION CAN CHANGE AS PRODUCT IMPROVEMENTS ARE INCORPORATED. IF YOU OWN AN EARLIER VERSION OF THE  
MACHINE, THIS MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE . CONTACT CUSTOMER SERVICE IF YOU HAVE ANY QUESTIONS ABOUT  
DIFFERENCES. PREVIOUS VERSIONS ARE NOT AVAILABLE ONLINE.  
PRINTED IN TAIWAN  
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Table Of Contents  
PAGE  
1.  
2.  
SAFETY  
SAFETY RULES FOR POWER TOOLS ............................................................................2-3  
SAFETY RULES FOR THE DRUM SANDER ......................................................................4  
CIRCUIT REQUIREMENTS  
220V OPERATION ................................................................................................................5  
FUSING..................................................................................................................................5  
GROUNDING ........................................................................................................................5  
EXTENSION CORDS ............................................................................................................6  
WIRING DIAGRAMS ............................................................................................................6  
GENERAL INFORMATION  
3.  
COMMENTARY ....................................................................................................................7  
UNPACKING..........................................................................................................................8  
PIECE INVENTORY ..............................................................................................................8  
HARDWARE RECOGNITION CHART ..................................................................................9  
CLEAN UP ..........................................................................................................................10  
SITE CONSIDERATIONS....................................................................................................10  
ASSEMBLY  
BEGINNING ASSEMBLY ....................................................................................................11  
DUST PORTS......................................................................................................................11  
CRANK HANDLE ................................................................................................................12  
G1066Z CONTROL PANEL ................................................................................................12  
ADJUSTMENTS  
4.  
5.  
DRUM ALIGNMENT ......................................................................................................13-15  
PRESSURE ROLLERS ......................................................................................................16  
DUST SCOOP ....................................................................................................................17  
V-BELT ALIGNMENT ..........................................................................................................17  
PAPER REPLACEMENT G1066/G1079........................................................................18-19  
PAPER REPLACEMENT G1066Z ......................................................................................19  
DUST COLLECTION ..........................................................................................................20  
CONVEYOR BELT ..............................................................................................................21  
OPERATIONS  
6.  
G1066Z CONTROL PANEL ................................................................................................22  
TEST RUN ..........................................................................................................................23  
G1066/G1079 ......................................................................................................................23  
G1066Z ..........................................................................................................................24-25  
CHOOSING SANDPAPER ..................................................................................................25  
MAINTENANCE  
GENERAL............................................................................................................................26  
LUBRICATION ....................................................................................................................26  
BEARING REPLACEMENT ................................................................................................27  
CLOSURE..................................................................................................................................28  
7.  
8.  
G1066 DATA SHEET ............................................................................................................................29  
G1066 PARTS BREAKDOWN ........................................................................................................30-32  
G1066 PARTS LIST ..............................................................................................................................33  
G1066 WIRING DIAGRAM....................................................................................................................34  
G1066Z DATA SHEET ..........................................................................................................................35  
G1066Z PARTS BREAKDOWN ......................................................................................................36-38  
G1066Z PARTS LIST ......................................................................................................................39-40  
G1066Z WIRING DIAGRAM..................................................................................................................41  
G1079 DATA SHEET ............................................................................................................................42  
G1079 PARTS BREAKDOWN ........................................................................................................43-45  
G1079 PARTS LIST ..............................................................................................................................46  
G1079 WIRING DIAGRAM....................................................................................................................47  
TROUBLESHOOTING ..........................................................................................................................48  
MAINTENANCE NOTES ......................................................................................................................49  
WARRANTY AND RETURNS ..............................................................................................................50  
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SECTION 1: SAFETY  
For Your Own Safety Read Instruction  
Manual Before Operating This Equipment  
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 substi-  
tute 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  
NOTICE  
proper operation of the equipment.  
Safety Instructions For Power Tools  
1. KEEP GUARDS IN PLACE and in working  
5. KEEP CHILDREN AND VISITORS  
AWAY. All children and visitors should be  
kept at a safe distance from work area.  
order.  
2. REMOVE ADJUSTING KEYS AND  
WRENCHES. Form habit of checking to  
see that keys and adjusting wrenches are  
removed from tool before turning on.  
6. MAKE WORKSHOP CHILD PROOF with  
padlocks, master switches, or by removing  
starter keys.  
3. KEEP WORK AREA CLEAN. Cluttered  
7. NEVER FORCE TOOL. It will do the job  
better and safer at the rate for which it was  
designed.  
areas and benches invite accidents.  
4. NEVER USE IN DANGEROUS ENVI-  
RONMENT. Do not use power tools in  
damp or wet locations, or where any flam-  
mable or noxious fumes may exist. Keep  
work area well lighted.  
8. USE RIGHT TOOL. Do not force tool or  
attachment to do a job for which it was not  
designed.  
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Safety Instructions For Power Tools  
9. USE PROPER EXTENSION CORD. Make  
sure your extension cord is in good condi-  
tion. Conductor size should be in accor-  
dance with the chart below. The amperage  
rating should be listed on the motor or tool  
nameplate. An undersized cord will cause  
a drop in line voltage resulting in loss of  
power and overheating. Your extension  
cord must also contain a ground wire and  
plug pin. Always repair or replace exten-  
sion cords if they become damaged.  
14. MAINTAIN TOOLS WITH CARE. Keep  
tools sharp and clean for best and safest  
performance. Follow instructions for lubri-  
cating and changing accessories.  
15. DISCONNECT TOOLS before servicing  
and changing accessories, such as blades,  
bits, cutters, and the like.  
16. REDUCE THE RISK OF UNINTENTION-  
AL STARTING. Make sure switch is in off  
position before plugging in. Also, the mag-  
netic switch on this machine may start if the  
switch gets bumped hard enough.  
Minimum Gauge for Extension Cords  
LENGTH  
AMP RATING  
0-6  
25ft  
18  
18  
16  
14  
12  
10  
50ft 100ft  
17. USE RECOMMENDED ACCESSORIES.  
Consult the owner’s manual for recom-  
mended accessories. The use of improper  
accessories may cause risk of injury.  
16  
16  
16  
12  
12  
10  
16  
14  
14  
12  
10  
No  
7-10  
11-12  
13-16  
18. CHECK DAMAGED PARTS. Before fur-  
ther use of the tool, a guard or other part  
that is damaged should be carefully  
checked to determine that it will operate  
properly and perform its intended function.  
Check for alignment of moving parts, bind-  
ing of moving parts, breakage of parts,  
mounting, and any other conditions that  
may affect its operation. A guard or other  
part that is damaged should be properly  
repaired or replaced.  
17-20  
21-30  
10. WEAR PROPER APPAREL. Do not wear  
loose clothing, gloves, neckties, rings,  
bracelets, or other jewelry which may get  
caught in moving parts. Non-slip footwear  
is recommended. Wear protective hair cov-  
ering to contain long hair.  
11. ALWAYS USE SAFETY GLASSES. Also  
use face or dust mask if cutting operation  
is dusty. Everyday eyeglasses only have  
impact resistant lenses, they are NOT  
safety glasses.  
19. NEVER LEAVE TOOL RUNNING UNAT-  
TENDED. TURN POWER OFF. Do not  
leave tool until it comes to a complete stop.  
20. NEVER USE UNDER THE INFLUENCE of  
12. SECURE WORK. Use clamps or a vise to  
hold work when practical. It’s safer than  
using your hand and frees both hands to  
operate tool.  
alcohol or drugs, or when tired.  
21. NEVER ALLOW UNSUPERVISED OR  
UNTRAINED PERSONNEL TO OPER-  
ATE THE MACHINE. Make sure any  
instructions you give in regards to the oper-  
ation of the machine are approved, correct,  
safe, and clearly understood.  
13. NEVER OVERREACH. Keep proper foot-  
ing and balance at all times.  
G1066/G1066Z/G1079 Drum Sander  
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Additional Safety Instructions  
For The Drum Sander  
DO NOT allow anyone to stand at the out-  
NEVER leave the machine running unat-  
feed end when feeding your stock.  
tended.  
DO NOT jam workpiece into the machine  
during operation. Firmly grasp the work-  
piece in both hands and ease it into the  
machine using light pressure.  
NEVER operate the sander without an  
adequate dust collection system in place  
and running.  
NEVER sand more than one piece of stock  
at a time.  
DO NOT wear loose clothing while operat-  
ing this machine. Roll up or button sleeves  
at the cuff.  
ANY PROBLEM, with the exception of  
conveyor belt tracking, that is concerned  
at all with any moving parts or accessories  
must be investigated and corrected with  
the power disconnected, and after all mov-  
ing parts have come to a complete stop.  
Never attempt to adjust conveyor belt  
tracking when the sanding drums are  
engaged.  
DO NOT sand any stock narrower than  
1
8''.  
DO NOT attempt to sand thin stock by  
using a “dummy” board under your work-  
piece.  
DO NOT sand stock shorter than 9''.  
REPLACE sanding paper when it  
becomes worn.  
DO NOT place hands near, or in contact  
with, sanding drums during operation.  
ALWAYS inspect board stock for nails,  
staples, knots, and other imperfections  
that could be dislodged and thrown from  
the machine during sanding operations.  
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!  
PERFORM machine inspections and  
maintenance service promptly when called  
for.  
As with all power tools, there is danger  
associated with the G1066/G1066Z/G1079  
Drum Sanders. Accidents are frequently  
caused by lack of familiarity or failure to pay  
attention. Use this tool with respect and  
caution to lessen the possibility of operator  
injury. If normal safety precautions are  
overlooked or ignored serious personal  
injury may occur.  
Operating this equipment has the potential  
for creating flying debris which can cause  
eye injury. Always wear safety glasses or  
goggles when operating equipment.  
Everyday glasses or reading glasses only  
have impact resistant lenses, they are not  
safety glasses. Be certain the safety glass-  
es you wear meet the appropriate standards  
of the American National Standards  
Institute (ANSI).  
-4-  
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SECTION 2: CIRCUIT REQUIREMENTS  
220V Single-Phase  
Grounding  
In the event of an electrical short, grounding  
reduces the risk of electric shock by providing a  
path of least resistance to disperse electric cur-  
rent. This tool is equipped with an electric cord  
that has an equipment-grounding conductor  
which must be properly connected to a grounding  
plug. The plug must be plugged into a matching  
outlet that is properly installed and grounded in  
accordance with all local codes and ordinances.  
The Model G1066/G1066Z/G1079 features 220V  
single-phase motors. The G1066/G1066Z 5 HP  
motor will safely draw about 25 amps under load.  
The G1079 2 HP drum motor requires 12 amps  
for safe operation. All sanders feature 1/4 HP feed  
motors that draw approx. 3 amps under load.  
The Model G1066/G1066Z should be fused at 30  
amps. The Model G1079 should be fused at 15  
amps. Make sure the wiring in your circuit is rated  
to handle the amperage draw from your machine.  
If frequent circuit failure occurs when using the  
sander, contact our Service Department. The  
sander must be connected to its own dedicated  
circuit and should not share a circuit with any  
other machine. A standard 2-pole breaker is nec-  
essary for use with the sander.  
Improper connections of the electrical-grounding  
conductor can result in the risk of electric shock.  
The conductor with green or green and yellow  
striped insulation is the electrical-grounding con-  
ductor. If repair or replacement of the electric  
cord or plug is necessary, do not connect the  
equipment grounding conductor to a live terminal.  
We recommend using a NEMA-style L6-30 plug  
and outlet for the Model G1066/G1066Z, and an  
L6-15 for the Model G1079. You may also “hard-  
wire” the sander directly to your panel, provided  
you place a disconnect near the machine. Check  
the electrical codes in your area for specifics on  
wiring requirements.  
This equipment must be  
grounded. Verify that any  
existing electrical outlet  
and circuit you intend to  
plug into is actually  
grounded. Under no cir-  
cumstances should the  
grounding pin from any  
three-pronged plug be  
removed. Serious injury  
may occur.  
Figure 1. Typical plug configuration for 220V,  
single-phase operation.  
G1066/G1066Z/G1079 Drum Sander  
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Extension Cords  
Wiring Diagram  
The Model G1066/G1066Z/G1079 comes pre-  
wired for 220 volt operation. Wiring diagrams are  
provided at the back of this manual should it be  
necessary to repair or revise the wiring. Always  
consult a qualified electrician when doing any  
electrical work on this equipment.  
We do not recommend the use of extension  
cords on 220V equipment. It is much better to  
arrange the placement of your equipment and the  
installed wiring to eliminate the need for exten-  
sion cords. Should it be necessary to use an  
extension make sure the cord is rated Hard  
Service (grade S) or better. Refer to the chart in  
Section 1: Safety to determine the minimum  
gauge for the extension cord. The extension cord  
must also contain a ground wire and plug pin.  
Always repair or replace extension cords when  
they become worn or damaged.  
We have covered some basic electrical  
requirements for the safe operation of your  
Sander. These requirements are not neces-  
sarily comprehensive. You must be sure  
that your particular electrical configuration  
complies with local and state codes.  
Ensure compliance by checking with your  
local municipality or a licensed electrician.  
-6-  
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SECTION 3: GENERAL INFORMATION  
Most important, we stand behind our machines. If  
you have any service questions or parts requests,  
please call or write us at the location listed below.  
Commentary  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
We are proud to offer the Grizzly Model  
G1066/G1066Z/G1079 Drum Sander. Your  
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 commitment to customer  
Fax: (800) 438-5901  
E-Mail: techsupport@grizzly.com  
satisfaction.  
The specifications, drawings, and photographs  
illustrated in this manual represent the Model  
G1066/G1066Z/G1079 as supplied when the  
manual was prepared. However, owing to  
Grizzly’s policy of continuous improvement,  
changes may be made at any time with no oblig-  
ation on the part of Grizzly. Whenever possible,  
though, we send manual updates to all owners of  
a particular tool or machine. Should you receive  
one, we urge you to insert the new information  
with the old and keep it for reference.  
This manual covers all three models because  
these machines are essentially the same except  
for the motor size, the size of stock they can han-  
dle, the rotation of the drums and the feed rates. A  
number of optional accessories for these  
machines are available through the Grizzly cata-  
log. Theses options include a complete selection  
of sanding paper, dust collection systems and a  
heavy-duty mobile base.  
We are also pleased to provide this manual with  
the Model G1066/G1066Z/G1079. It was written  
to guide you through assembly, review safety  
considerations, and cover general operating pro-  
cedures. It represents our effort to produce the  
best documentation possible. If you have any  
comments regarding this manual, please write to  
us at the address below:  
Read the manual before  
assembly and operation.  
Become familiar with  
the machine and its  
operation before begin-  
ning any work. Serious  
personal injury may  
result if safety or opera-  
tional information is not  
understood or followed.  
Grizzly Industrial, Inc.  
Technical Documentation  
P.O. Box 2069  
C
/O  
Bellingham, WA 98227-2069  
Description  
Motor Size  
G1066 G1066Z  
5 HP 5 HP  
G1079  
2 HP  
16"  
Sanding Width 2312  
"
2312  
"
Drum Rotation With Feed Against Feed With Feed  
Feed Rates 11 FPM Var. 0-20 FPM 11 FPM  
G1066/G1066Z/G1079 Drum Sander  
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Unpacking  
Piece Inventory  
After all the parts have been removed from the  
carton, you should have:  
The Model G1066/G1066Z/G1079 Drum Sander  
is shipped from the manufacturer in a carefully  
packed carton. If you discover your machine is  
damaged after you have signed for delivery, and  
the truck and driver are gone, you will need to file  
a freight claim with the carrier. Save the contain-  
ers and all packing materials for possible inspec-  
tion by the carrier or its agent. Without the pack-  
ing materials, filing a freight claim can be difficult.  
If you need assistance determining whether you  
need to file a freight claim, or with the procedure  
to file one, please contact our Customer Service.  
Drum Sander Unit  
Control Panel [G1066Z]  
4'' Dust Port (2)  
Crank Arm  
Crank Handle  
Paper Retaining Clip (2) [G1066/G1079]  
Self Tapping Screws #8 x 12" (8)  
Flat Washers #8 (8)  
3MM Hex Wrench  
In the event that any non-proprietary parts are  
missing (e.g. a nut or a washer), we would be  
glad to replace them, or for the sake of expedien-  
cy, replacements can be obtained at your local  
hardware store.  
The Model G1066/G1066Z/G1079 is a heavy  
machine (approx. 430 and 285 lb. shipping  
weights respectively). DO NOT over-exert  
yourself while unpacking or moving your  
machine—get assistance. In the event that  
your Drum Sander must be moved up or  
down a flight of stairs, be sure that the  
stairs are capable of supporting the com-  
bined weight of people and the machine.  
Serious personal injury may occur if they  
are not.  
NOTICE  
A full parts list and breakdown can be found  
toward the end of this manual. For easier  
assembly, or to identify missing parts,  
please refer to the detailed illustrations at  
the end of the manual.  
When you are completely satisfied with the con-  
dition of your shipment, you should inventory its  
parts.  
-8-  
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Hardware Recognition Chart  
Use this chart to match up  
hardware pieces during the  
assembly process!  
Lock  
Nut  
Wing  
Nut  
5
8''  
#10  
Countersunk  
Phillips  
Head  
Thumb  
Screw  
1
4''  
Phillips  
Head  
Screw  
Slotted  
Screw  
Screw  
516''  
916''  
3
8''  
Carriage  
Bolt  
Button  
Head  
Screw  
Cap  
Screw  
Flange  
Bolt  
716''  
1
2''  
Phillips  
Head  
Sheet  
Metal  
Screw  
Phillips  
Head  
Hex  
Hex  
Head  
Bolt  
1
2''  
Setscrew  
Washer  
Bolt  
716''  
5
8''  
Hex  
Nut  
Lock  
Washer  
12mm  
4mm  
6mm  
3
8''  
5mm  
1
3
1
5
''  
4''  
8''  
2''  
5
7
9
3
7
''  
16''  
16''  
16''  
10mm  
15mm  
20mm  
25mm  
30mm  
35mm  
40mm  
45mm  
50mm  
55mm  
60mm  
65mm  
70mm  
75mm  
8
4mm  
8mm  
4''  
18''  
516''  
10mm  
114''  
112''  
134''  
2
214''  
212''  
234''  
3
10mm  
1
4''  
12mm  
6mm  
8mm  
16mm  
#10  
G1066/G1066Z/G1079 Drum Sander  
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Clean Up  
Site Considerations  
The unpainted surfaces are coated with a waxy  
oil to protect them from corrosion during ship-  
ment. Remove this protective coating with a sol-  
vent cleaner or citrus-based degreaser such as  
Grizzly’s G7895 Degreaser. To clean thoroughly,  
some parts may need to be removed. Avoid chlo-  
rine-based solvents as they may damage painted  
surfaces should they come in contact. Always fol-  
low the manufacturer’s instructions when using  
any type of cleaning product.  
FLOOR LOAD  
Your new drum sander represents a large weight  
load in a moderate sized footprint. Most shop  
floors will be adequate for the weight of the drum  
sander; however, some floors may require addi-  
tional support. Contact an architect or structural  
engineer if you have any question about the abil-  
ity of your floor to handle the weight.  
WORKING CLEARANCES  
Working clearances can be thought of as the dis-  
tances between machines and obstacles that  
allow safe operation of every machine without  
limitation. Consider existing and anticipated  
machine needs, size of material to be processed  
through each machine, and space for auxiliary  
stands and/or work tables. Also consider the rel-  
ative position of each machine to one another for  
efficient material handling. Be sure to allow your-  
self sufficient room to safely run your machines in  
any foreseeable operation.  
Do not use gasoline or  
other petroleum-based  
solvents to clean with.  
They have low flash  
points which make them  
extremely flammable. A  
risk of explosion and  
burning exists if these  
products are used.  
Serious personal injury  
may occur.  
LIGHTING AND OUTLETS  
Lighting should be bright enough to eliminate  
shadow and prevent eye strain. Electrical circuits  
should be dedicated or large enough to handle  
combined motor amp loads. Outlets should be  
located near each machine so power or exten-  
sion cords are not obstructing high-traffic areas.  
Be sure to observe local electrical codes for prop-  
er installation of new lighting, outlets or circuits.  
Do not smoke while using  
solvents. A risk of explo-  
sion or fire exists and may  
result in serious personal  
injury.  
Many of the solvents  
commonly used to clean  
machinery can be toxic  
when inhaled or ingest-  
ed. Always work in well-  
ventilated areas far from  
potential ignition sources  
when dealing with sol-  
vents. Use care when dis-  
posing of waste rags and  
towels to be sure they do  
not create fire or environ-  
mental hazards.  
Make your shop “child safe.”  
Ensure that your workplace  
is inaccessible to children by  
closing and locking all  
entrances when you are  
away. Never allow visitors in  
your shop when assembling,  
adjusting or operating equip-  
ment.  
-10-  
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SECTION 4: ASSEMBLY  
Dust Ports  
Beginning Assembly  
The Model G1066/G1079 Drum Sander comes  
equipped with two 4'' dust ports as shown in  
Figure 2. Apply double sided tape between the  
plastic dust ports and the sheet metal cover, then  
secure in place with sheet metal screws.  
Most of your new drum sander has been assem-  
bled at the factory, but some parts must be  
assembled or installed after delivery. We have  
organized the assembly process into steps.  
Please follow along in the order presented in this  
section.  
Keep loose clothing out  
of the way of machinery  
and keep hair pulled  
back.  
Disconnect power to the  
machine when perform-  
ing any maintenance or  
assembly. Failure to do  
this may result in serious  
personal injury.  
Figure 2. Top-mounted 4" dust ports.  
The Model G1066Z also comes equipped with  
two 4" dust ports, but these mount in the center of  
the top and the center of the front on the sheet  
metal cover. As with the other models, apply dou-  
ble sided tape between the plastic dust ports and  
the sheet metal cover, then secure in place with  
sheet metal screws.  
Wear safety glasses dur-  
ing the entire assembly  
process. Failure to com-  
ply may result in serious  
personal injury.  
DO  
NOT  
operate  
the  
Model  
Some metal parts may  
have sharp edges on  
them after they are  
formed. Please examine  
the edges of all metal  
parts before handling  
them. Failure to do so  
could result in injury.  
G1066/G1066Z/G1079 without an adequate  
dust collection system. This machine creates  
substantial amounts of wood dust while in  
operation. Failure to use a dust collection  
system can result in short and long-term res-  
piratory illness.  
G1066/G1066Z/G1079 Drum Sander  
-11-  
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Crank Handle  
G1066Z Control Panel  
To mount the control panel to the base unit on  
the Model G1066Z:  
The crank handle is normally installed on the  
front right lead screw shaft, and is held in place  
with two setscrews already threaded into the han-  
dle, as shown in Figure 3. The crank handle can  
be installed on the right or left side of the machine  
to maximize operator comfort and convenience.  
1. Match the holes in the control arm mounting  
plate to the threaded holes on the side of the  
the sander.  
2. Use the 516"-18 x 1" hex bolts and washers to  
secure the control arm to the sander body as  
shown in Figure 4.  
Setscrew  
Figure 3. Crank handle attachment.  
Figure 4. Control panel attached to base unit.  
-12-  
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SECTION 5: ADJUSTMENTS  
Keep loose clothing out  
of the way of machinery  
and keep hair pulled  
back.  
Disconnect power to the  
machine when perform-  
ing any adjustments or  
maintenance. Failure to  
do this may result in seri-  
ous personal injury.  
Figure 6. Sanding drum parallel to feed belt.  
In order to make the above adjustments, it is nec-  
essary to know how to adjust the bearing blocks.  
Wear safety glasses dur-  
ing the entire adjustment  
process. Failure to com-  
ply may result in serious  
personal injury.  
To adjust the Model G1066/G1066Z/G1079  
bearing blocks:  
1. Loosen the lock nuts (See Figure 7) on one  
of the bearing blocks on the drum that  
requires adjustment.  
Drum Alignment  
2. Raise or lower the bearing block by rotating  
the setscrews (See Figure 7). Turn very  
gradually 18 of a turn or less.  
For the Model G1066/G1066Z/G1079 Drum  
Sander to function properly, the sanding drums  
must be aligned in two directions: (1) perpendic-  
ular to feed direction (Figures 5 and 6) and (2)  
parallel to the conveyor belt.  
Bearing Block  
Setscrews  
Locknut  
Figure 7. Bearing block adjustments.  
Figure 5. Feed direction perpendicular to drum.  
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3. Tighten the lock nuts and recheck the align-  
ment using the same hardwood block.  
Tightening the lock nuts will pull the drum  
downward slightly. Be sure to adjust to com-  
pensate for this movement. Do not over  
tighten the lock nuts. The bearing blocks  
can break if over tightened.  
3. Repeat the measurements with the rear  
drum and brace. If the measurements are  
1
not within 8", the drums can be moved by  
loosening the lock nuts on the bearing blocks  
and moving one end of the drum forward or  
backward as necessary in the slotted holes.  
If the drums are not perpendicular to feed  
direction, the sandpaper will creep toward  
one end of the drum. After you have adjust-  
ed the drums, do not forget to tighten the  
lock nuts and recheck the alignment.  
4. For Models G1066/G1079 repeat steps 1-3  
for the other drum. Tighten the lock nuts.  
Model G1066Z has micro-adjustment knobs  
on the sides of the machine for rear drum  
adjustments. See Figure 9. Both drums  
should now be properly adjusted. Do not  
change the table height until the lock nuts  
are tight.  
To adjust the drums parallel to the conveyor  
belt:  
1. Disconnect the sander from the power  
source!  
Use care when tightening lock nuts. While  
they are made of durable cast metal, the  
bearing blocks are susceptible to breakage if  
the metal is fatigued by excess tension  
caused by overtightening.  
2. For this step, you will need a 24" long block  
of wood. A quality 2x4 will work fine (See  
Figure 10).  
Micro-Adjust Lock Knob  
Figure 10. Dimensions of gauge block.  
3. Start with the front sanding drum. Lower the  
table so the block will slide easily under the  
pressure bars. Slide the block over to one  
side of the table, with the front edge lined up  
to the front of the table. (It is important to line  
up the block carefully to ensure that the  
same part of the 2x4 is used to set the drum  
heights.) Raise the table up so the board  
barely touches the front pressure roller.  
Micro-Adjustment Knob  
Figure 9. Model G1066Z rear drum  
adjustment control.  
To adjust the drums perpendicular to the feed  
direction:  
1. Disconnect the sander from the power  
source!  
4. Raise the table one full turn of the hand-  
wheel. Adjust the height of that side of the  
front sanding drum so it just touches the  
board and is able to rock back and forth with  
moderate resistance.  
2. First measure the distance between the out-  
side of the front drum and the inside of the  
front brace. The distances should be within  
1
8" of each other at each end of the drum.  
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5. Stop and mark the location of the table ele-  
vation handle with a felt pen or piece of tape.  
In the same manner, mark the height of the  
table in relation to the body of the sander.  
Both of these marks will indicate this exact  
table position (we will refer to it as reference  
height #1). Having reference height #1  
marked is crucial to all subsequent steps.  
9. Repeat steps 5-6 until both sides of the rear  
drum are the same. (Note: the G1066Z has  
external height adjustment knobs for the rear  
drum. These are located on each side of the  
machine. Other than this difference, the pro-  
cedure for setting the drum height is the  
same.)  
10. While the rear drum should always be slight-  
ly lower than the front drum, the actual differ-  
ence will vary depending on wood type, feed  
rate, sandpaper grits, etc. Once you are  
familiar and comfortable with the adjustment  
procedures, you should experiment to arrive  
at the best settings for your specific applica-  
tion.  
6. Lower the table exactly 2 turns. Remove the  
block and re-insert it on the other side, taking  
care to line it up with the front of the table just  
as it was on the previous side. Raise the  
table exactly 2 turns to bring it back up to ref-  
erence height #1.  
7. Set the height of that end of the drum to the  
board. Rock the drum back and forth again.  
It should feel and sound the same as it did on  
the other end. If the sound and rolling action  
are not identical, adjust the bearing block  
height. Continue this procedure, going back  
and forth, until both sides of the drum sound  
and feel the same.  
In addition to premature wear and failure of  
sandpaper, improper drum alignment could  
cause the possibility of an uncontrolled exit  
of material from the machine—which could  
result in damage to property or potential  
operator injury.  
8. To adjust the rear drum, lower the table by  
turning the handwheel counter-clockwise  
1
/8th of a turn from reference #1. Make a sec-  
ond mark. This will be reference #2 and will  
be used for setting up the rear drums.  
G1066/G1066Z/G1079 Drum Sander  
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To provide increased operator control, the Model  
G1066Z features height adjustment controls for  
the feed roller. These controls are located on the  
underside of the roller pressure spring controls  
and consist of a hex bolt and jamnut setup, exact-  
ly like the roller pressure spring tension controls.  
Pressure Rollers  
The spring tension of the pressure rollers can be  
adjusted to reduce snipe. (Note: roller pressure is  
also affected by the drum height.)  
To adjust the pressure roller height on the  
Model G1066Z:  
To adjust the pressure rollers:  
1. Disconnect the sander from the power  
source!  
1. Disconnect sander from the power  
source!  
2. Remove sanding head cover (disconnect  
2. The “Drum Alignment” instructions must be  
followed before this adjustment can be per-  
formed. Use the same 2x4 for this procedure.  
dust collector hose if attached).  
3. Loosen the jamnuts on the hex bolts. Turn  
the hex bolts downward to increase the pres-  
sure roller spring tension. See Figure 11.  
Increasing the tension will increase the pres-  
sure of the board on the conveyor belt, but  
will also be less forgiving of irregularities in  
the board and could cause jamming. You will  
need to determine experimentally the optimal  
tension for your stock.  
3. With the 2x4 in place on one end of the table,  
raise the table up to reference height #1.  
4. Lower the table 1 full turn with the hand-  
wheel.  
5. On the same side as the 2x4, loosen the jam-  
nuts on the roller height hex bolts.  
4. Replace the sanding head cover and recon-  
6. Adjust all 3 pressure rollers by turning the  
hex bolts. The pressure rollers should barely  
touch the surface of the 2x4, allowing just  
enough room to rotate. At this position, tight-  
en the jamnut on the bolt so it does not  
move.  
nect the dust collector.  
Roller Pressure  
Adjusting Bolt  
7. Repeat steps 3-6 with the other side to make  
sure all pressure rollers are even and paral-  
lel to the table.  
These adjustments should be used as a starting  
point. Once you are familiar and comfortable with  
the adjustment procedures, you should experi-  
ment to arrive at the best settings for your specif-  
ic application.  
Figure 11. Location of pressure roller tensioners.  
-16-  
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Dust Scoop  
V-Belt  
The Model G1066/G1079 is equipped with a dust  
scoop located next to the rear sanding drum. The  
Model G1066Z features a dust scoop for each  
drum. Dust scoops reduce the amount of dust  
that accumulates on the workpiece as it travels  
through the sander. Dust scoops are adjustable  
and should be set approximately 32'' above the  
bottom of the rear drum for optimum effective-  
ness.  
The sanding drums are driven by two V-Belts on  
the Models G1066 & G1066Z and one V-Belt on  
the Model G1079. The V-Belts must have proper  
tension for proper power transmission. Proper  
tension is achieved when the V-Belts can be  
deflected about 34" with moderate finger pressure  
at the midpoint between the drum sheaves  
(sheaves are integral on the Model G1079) and  
the motor sheave. To adjust V-Belt tension,  
loosen the motor mounting bolts and slide the  
motor accordingly. Ensure that the pulleys stay in  
line with each other and tighten the motor mount-  
ing bolts. Re-check V-Belt tension and alignment.  
1
To adjust a dust scoop:  
1. Unplug the sander from its power source!  
2. Place two 2x4’s of equal height under the  
rear sanding drum and the dust scoop. Raise  
the table until the 2x4’s just touch the drum.  
To check alignment, ensure that the machine is  
on a level floor. Hold a straightedge against the  
side of the rear contact drum sheave. The contact  
drum and motor sheaves are in alignment when  
the straightedge also barely touches the side of  
the motor sheave.  
3. Loosen the dust scoop mounting bolts locat-  
ed at each end of the scoop as shown in  
Figure 12.  
To align the sheaves, loosen the motor from the  
motor mounting plate and shift the motor in the  
desired direction. Tighten the motor mount bolts  
and re-check alignment and tension.  
4. Move the scoop up or down until it is approx-  
imately 132'' above the 2x4’s. Some flexing of  
the sheet metal assembly may be needed to  
get the proper clearance. Retighten the  
mounting bolts and remove the 2x4’s.  
If the sheaves will not come into alignment by  
adjusting the motor, the motor sheave can be  
moved directly along the motor shaft. Loosen the  
setscrew on the motor sheave and move it in or  
out accordingly.  
Dust Scoop  
Mounting Bolt  
Always inspect V-belts for damage or deteri-  
oration when adjusting for tension or align-  
ment. Should you find evidence of cracking,  
abrasion or damage from wood chips or  
other foreign materials, replace the belt  
immediately. Belt breakage could lead to  
mechanical damage or operator injury.  
Figure 12. Location of dust scoop bolts.  
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4. Unwind the old sandpaper and use it as a  
pattern or use the pattern in Figure 14 to cut  
a piece of 6" wide sandpaper of the desired  
grit. It is necessary to cut a triangular portion  
of the paper away at each end.  
Paper Replacement  
G1066/G1079  
The Model G1066/G1079 is designed for 6" wide  
sandpaper rolls. The outfeed sanding drum is  
wrapped in felt to slightly increase the drum diam-  
eter and to provide a smooth sanded surface.  
The felt should be 1" from the edge of the drum  
to allow room for the tape to adhere.  
To change the paper:  
1. Disconnect the machine from the power!  
2. Take the sheet metal cover off.  
3. Remove the tape from around the right side  
of the drum and the clip that attaches the  
sandpaper to the left side of the drum (See  
Figure 13).  
Figure 14. Illustrates paper preparation.  
5. Starting at the left side of the drum, fold the  
corner of the sandpaper into the spring clip,  
then install the clip onto the tensioner. You  
may need to tap the clip with a hammer or  
mallet to ensure that it is seated; however,  
you do not have to drive clip completely on,  
just make sure it is secure. Too much force  
will break the clip! Also, do not fold paper  
over tensioner and then install the clip—the  
paper may tear as a result.  
Be careful that the tension wheel does not  
pinch your fingers when the pressure is  
released and it snaps back to a relaxed posi-  
tion.  
Tension Wheel  
6. Pull the paper until the tension wheel spring  
has bottomed out in its travel.  
7. This step is possible to accomplish alone, but  
it is easier with an assistant. While one per-  
son rolls the drum, the other tightly spirals  
the paper onto the drum, ensuring that there  
are no bubbles or overlapping edges.  
IMPORTANT: Try to leave a uniform 316" gap  
between the spirals as you wind the paper  
around the drum. This will allow the paper to  
move and stretch slightly and will decrease  
the likelihood of tearing and overlapping.  
Sanding Paper Clip  
Tension Spring  
Figure 13. Sanding paper attachment.  
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8. Hold the loose end against the right side of  
the contact drum and wrap with duct tape to  
secure. Double-check the drum to make sure  
there are no bubbles or overlapping edges  
and your gapping is correct.  
Paper Replacement  
G1066Z  
9. Repeat steps 1-6 for the other drum.  
The Model G1066Z is designed for 3" wide hook  
and loop sandpaper rolls.  
10. Mount the hood and reconnect the flex-hose  
to the dust collection ports.  
To change sandpaper on the G1066Z:  
Important Tips For Changing Sandpaper  
1. Disconnect the sander from the power  
source!  
Replace the paper on each drum individual-  
ly. Once paper is removed from both drums,  
they can be slippery and hard to rotate.  
2. Remove the top cover to expose the drums.  
3. One drum at a time, unwind the old sandpa-  
per and notice the direction that it was  
wrapped around the drum.  
Always fold the paper into the spring clip and  
then insert it.  
The spring clip does not have to be driven  
completely on.  
4. Use the old sandpaper as a pattern to cut out  
the new sandpaper.  
Changing sandpaper is easier with the help  
of another person.  
5. Wrap the sanding drum with the new sand-  
paper. Make sure to wrap the sandpaper  
tight and try to keep the gaps to a minimum.  
6. Tape both ends with 34" strapping tape, mak-  
ing at least two complete passes so that the  
second layer is directly on top of the first.  
See Figure 15. Repeat steps 3-5 with the  
other drum.  
Figure 15. Sandpaper ends taped on  
Model G1066Z.  
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Dust Collection  
DO  
NOT  
operate  
the  
Model  
G1066/G1066Z/G1079 without an adequate  
dust collection system. This machine creates  
substantial amounts of wood dust while in  
operation. Failure to use a dust collection  
system can result in short and long-term res-  
piratory illness.  
The dust collection ports are located on the top of  
the sanding head cover and each measures 4" in  
diameter. It will be necessary to attach 4" dust  
collection pipes over these ports. Flex-hose is  
recommended because it will ease removal of the  
sanding head cover when paper changes and  
adjustments are necessary. Grizzly offers 4" flex-  
hose to connect this machine to a dust collection  
system. The flex-hose easily attaches with a 4"  
hose clamp. Please refer to our catalog for cur-  
rent price and ordering information.  
Always wear a dust mask  
in addition to using a  
dust collector. Dust  
masks filter out the  
smaller particles of dust  
that dust collectors can-  
not trap.  
Your dust collector must be able to move 450  
cfm at the Drum Sander. If you have a remotely  
located dust collector or you are operating more  
than one machine at a time, ensure that your dust  
collector has the capacity and power to meet this  
requirement. A fine layer of dust will be present  
on your stock as it comes out of the sander. This  
is normal.  
-20-  
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2. If the conveyor belt tracks toward the right  
side, turn the adjustment bolt located at the  
infeed right corner. Turning this bolt counter-  
clockwise will make the sanding belt move to  
the left.  
Conveyor Belt  
The conveyor belt tension and tracking adjust-  
ments are controlled by the adjustment bolts  
located at each end of the front and rear convey-  
or rollers. If the conveyor belt is too loose or  
tracks off to one side, adjust as follows:  
3. After you have made the adjustment, run the  
machine for approximately 15 minutes to  
observe the tracking adjustment you made.  
Be patient, the belt tracks slow.  
1. If the conveyor belt is slipping, turn both  
infeed adjustment bolts counter-clockwise.  
See Figure 16.  
4. If the conveyor belt tracks too far to the left,  
loosen the adjustment bolt. Turning this bolt  
clockwise will move the sanding belt to the  
right.  
Roller Bracket  
Allen® Head Screws  
Always make adjustments at the infeed end  
to avoid re-adjusting conveyor drive chain.  
Conveyor belt tracking adjustments must be  
made while the conveyor belt is running.  
Use extreme care to ensure that clothing,  
hair or jewelry is kept safely away from mov-  
ing parts.  
Roller Adjustment Bolt  
Figure 16. Location of conveyor adjustments.  
G1066/G1066Z/G1079 Drum Sander  
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SECTION 6: OPERATIONS  
G1066Z Control Panel  
Keep loose clothing out  
of the way of machinery  
and keep hair pulled  
back.  
Before plugging in the Model G1066Z familiarize  
yourself with the control panel.  
The Model G1066Z control panel features a main  
power switch, separate on/off controls for the  
variable speed conveyor and the sanding drums,  
a variable speed adjustment dial and an amp load  
meter. Figure 17 points out each of these con-  
trols.  
Disconnect power to the  
machine when perform-  
ing any adjustments or  
maintenance. Failure to  
do this may result in seri-  
ous personal injury.  
Feed Rate  
Load Meter  
Conveyor ON  
Sanding Drum  
Motor ON  
Wear safety glasses dur-  
ing all operations on the  
planer. Failure to comply  
may result in serious  
personal injury.  
Conveyor OFF  
Sanding Drum  
Motor OFF  
Main Power  
Always wear a dust mask  
when  
sander.  
operating  
Using  
the  
this  
Figure 17. G1066Z control panel.  
machine produces saw-  
dust which may cause  
allergic reactions or res-  
piratory problems.  
The main power switch features an important  
safety device that is very important to remember.  
A twist-and-pull design in the knob helps to avoid  
accidental starts; yet, in the event of an emer-  
gency, the knob can be pushed straight down to  
stop the machine.  
NOTICE  
Another important point to remember about the  
control panel is that the feed conveyor motor and  
the drum motor operate independently from each  
other.  
The following section was designed to give  
instructions on the basic operations of this  
drum sander. However, it is in no way com-  
prehensive of every drum sander applica-  
tion. WE STRONGLY RECOMMEND that you  
read books, trade magazines, or get formal  
training to maximize the potential of your  
drum sander.  
The load meter and the variable speed dial are  
very important to the operation of the Model  
G1066Z. Please read the “Load Meter” and the  
“Variable Speed” instructions in this section  
before sanding any stock.  
-22-  
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Test Run  
G1066/G1079  
Once the assembly is complete and the adjust-  
ments are done to your satisfaction, you are  
ready to test the machine.  
Your new Model G1066/G1079 Drum Sander is a  
relatively simple piece of equipment to set up and  
run. Under most sanding conditions, a normal cut  
is no more than 164". This depth can be achieved  
Turn on the power supply at the main panel.  
Press the START button. Make sure that your fin-  
ger is poised on the STOP button, just in case  
there is a problem. 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 adjustments  
to the machine without turning it off and unplug-  
ging it from its power source.  
1
by approximately 4 turn of the table height han-  
dle. Attempts to remove too much can cause jam-  
ming, wood burning, rapid paper wear or tearing,  
poor finish and belt slippage. We recommend that  
wide stock be sent through two to three times  
without adjusting the table height. Turn the stock  
180° to ensure an even cut. The following is the  
correct start-up and operating procedure for  
either of these machines.  
1. Start the dust collector.  
If noises occur that cannot be found by visual  
inspection, feel free to contact our Service  
Department for help.  
2. Make thickness adjustment. Place workpiece  
on the conveyor table and turn the table han-  
dle until the workpiece can be sanded and  
fed through smoothly. Turning the handle  
clockwise will raise the conveyor table.  
Turning the table handle counter-clockwise  
will lower the conveyor table.  
DO NOT attempt to investigate or adjust any  
features of the machine while it is running.  
Wait until the machine is turned off,  
unplugged and all working parts have come  
to a rest before you do anything! Failure to  
do so could result in severe injury or dam-  
age to equipment.  
3. Remove the workpiece from the conveyor  
belt.  
4. Start the Drum Sander and feed your stock.  
Retrieve by standing at the side–not at the  
outfeed end.  
5. Check the sanded piece. Is the piece  
smooth? Mark a squiggly pencil line on a  
board and sand it to test for even sanding.  
Look for uniform removal of the line. If the  
line is not removed uniformly, refer to the  
adjustment section earlier in the instruction  
manual.  
DO NOT sand more than one board at a time.  
Minor variations in thickness can cause one  
board to be propelled by the rapidly spin-  
ning 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.  
NOTICE  
We strongly recommend sending wide  
stock through the sander two or three times  
without adjusting the height. This is an  
important method for preventing burning  
your wood or ruining sandpaper.  
G1066/G1066Z/G1079 Drum Sander  
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Operation  
G1066Z  
Under most sanding conditions, a normal cut is  
no more than 164". This depth can be achieved by  
approximately ⁄4 turn of the handle. Excessively  
heavy cuts can cause jamming, wood burning,  
rapid paper wear, poor finish and belt slippage.  
1
Your new Model G1066Z Drum Sander provides  
a great amount of operator control during opera-  
tion. To utilize this control, you should be familiar  
with the variable speed and the load meter before  
using the drum sander.  
We recommend that wide stock be sent through  
two to three times without adjusting the table  
height—this is important for preventing burned  
wood or ruined sandpaper. Also, turn the stock  
180° to ensure an even cut. The following is the  
correct start-up and operating procedure for this  
model.  
Variable Speed  
The variable speed dial located on the control  
panel allows you to increase the feed rate from 0-  
20 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 stock.  
1. Start the dust collector.  
2. Place stock on the conveyor table and turn  
the table handle to raise the conveyor table  
until the stock barely touches the pressure  
bar.  
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.  
3. Start the drum motor and the feed motor.  
Pass the stock through the sander and slow-  
ly raise the conveyor table while listening for  
stock-to-drum contact. As soon as you hear  
contact, stop raising the table and watch the  
load meter (if it gets too high, immediately  
lower the conveyor table). Retrieve your  
workpiece by standing to the side of the  
sander—NOT directly behind it.  
Load Meter  
The load meter located on the control panel dis-  
plays the current amperage draw of the drum  
motor. The needle rises when you increase the  
load on the sanding drums and decreases when  
you decrease the load. Use this meter to avoid  
overloading your machine with too heavy of a cut.  
NEVER exceed 25 amps—this is the maxi-  
mum that your machine can safely handle!  
4. Without moving the table, make multiple  
passes and check your workpiece.  
5. Check the sanded piece. Is the piece  
smooth? Mark a squiggly pencil line on a  
board and sand it to test for even sanding.  
Look for uniform removal of the line. If the  
line is not removed uniformly, refer to the  
Adjustments section earlier in the instruction  
manual.  
Since various types of stock will react differently  
with various loads, use trial-and-error to deter-  
mine the best settings for your applications. As a  
general rule, always start with a small load and  
work your way up. We recommend that you do  
not push your machine to its maximum load;  
instead, make multiple passes or install a coars-  
er grit paper.  
-24-  
G1066/G1066Z/G1079 Drum Sander  
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Hook & Loop Sandpaper  
Choosing Sandpaper  
Although hook & loop sandpaper is convenient  
and easy to install, care must be taken not to  
overload it while sanding by taking excessively  
heavy cuts.  
There are many types of sanding belts to choose  
from. We recommend Aluminum Oxide for gener-  
al workshop environments. Below is a chart that  
groups abrasives into different classes, and  
shows which grits fall into each class.  
Excessively heavy cuts will cause the underlying  
hooks and loops to slightly depress and deform  
under the sandpaper, resulting in small surface  
grooves and ridges on all subsequently sanded  
pieces. If this should happen, the only way to cor-  
rect the situation is to unwrap and then re-wrap  
the sandpaper around the drum to “reset” the  
hooks and loops.  
Grit  
Type  
60  
Coarse  
80-100  
120-180  
220  
Medium  
Fine  
Simply stated: DO NOT take excessively heavy  
cuts. If you need to remove material faster, switch  
to a coarser grit of sandpaper.  
Very Fine  
The general rule of thumb is to sand a workpiece  
with progressively higher grit numbers, with no  
one grit increase of more than 50.  
The Model G1066/G1066Z/G1079 allows you to  
place two different grit sandpapers on each  
drum.The first drum should have a coarser grit  
than the second. Usually this translates into com-  
binations of successive group types. A common  
selection for stock that is planed before being  
sanded is a 100/150 grit combination.  
Ultimately, the type of wood you use and your  
stage of finish will determine the best grit types to  
install on your sander.  
G1066/G1066Z/G1079 Drum Sander  
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SECTION 7: MAINTENANCE  
Lubrication  
Disconnect power to the  
machine when perform-  
ing any adjustments or  
maintenance. Failure to  
do this may result in seri-  
ous personal injury.  
Bearing blocks must be lubricated every 20 hours  
of operation. Use a high-quality, lithium-based  
grease. The grease fittings are located on the top  
of each bearing block.  
Other moving parts such as chains should be  
lubricated periodically with a light machine oil.  
Motor bearings need no lubrication.  
General  
Use only adequate lubrication. Too much lubri-  
cant will attract dirt and sawdust and will clog the  
chain mechanism.  
Make a habit of inspecting your Model  
G1066/G1066Z/G1079 each time you use it.  
Check for the following conditions and repair or  
replace when necessary.  
Loose mounting bolts.  
Worn switch.  
Failure to routinely inspect your drum  
sander for damage and wear could result in  
unsatisfactory work results, premature com-  
ponent or machinery failure, or operator  
injury. We recommend you create a check-  
list 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!  
Worn or damaged cords and plugs.  
Damaged V-belt.  
Any other condition that could hamper the  
safe operation of this machine.  
DO NOT attempt to investigate or adjust any  
features of the machine while it is running.  
Wait until the machine is turned off,  
unplugged and all working parts have come  
to a rest before you do anything!  
-26-  
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Bearing Replacement  
NOTICE  
Make sure, when installing the new bearing,  
that the lubrication groove in the bearing  
will match the groove and grease fitting in  
the housing once it is in place.  
The tools necessary for this job are a large round  
shaft screwdriver and a bench vise. Replace  
bearing as follows:  
1. Remove the roller housing from the drum  
sander and clamp it tightly in a bench vise.  
2. Insert the screwdriver into the center hole of  
the bearing as shown in Figure 18. Lever the  
bearing until it turns perpendicular to the  
housing. Once the bearing is turned 90° from  
the housing, it should slide free with little  
effort. The housing is designed with notches  
that allow the bearing to be inserted and  
removed. It is important that you lever the  
bearing so it turns in alignment to those  
notches.  
Figure 19. Matching bearing tab to notch.  
Figure 18. Detaching bearing from housing.  
3. Once the old bearing is removed, clean the  
bearing housing. Insert the new bearing into  
the notches in the housing as shown in  
Figure 19. Twist the bearing clockwise 90°  
after it reaches into the housing as far as it  
will go as shown in Figure 20.  
Figure 20. Inserting bearing into housing.  
6. Re-attach the sanding head cover before  
operating the sander.  
4. Insert the screwdriver through the bearing,  
as in step 2 and lever the bearing into its  
proper position in the housing.  
NOTICE  
Lubricate the bearings sparingly after about  
two months of sander operation. The bear-  
ing requires very little grease, so avoid the  
temptation to over-lubricate.  
5. Press or tap the bearing and housing back  
into place on the drum shaft. Re-adjust the  
drum as necessary.  
-27-  
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SECTION 8: CLOSURE  
The following pages contain general machine  
We recommend you keep a copy of our current  
catalog for complete information regarding  
Grizzly's warranty and return policy. If you need  
additional technical information relating to this  
machine, or if you need general assistance or  
replacement parts, please contact the Service  
Department listed in Section 3: General  
Information.  
data, parts diagrams/lists, troubleshooting guide  
and Warranty/Return information for your Model  
G1066/G1066Z/G1079 Drum Sanders.  
If you need parts or help in assembling your  
machine, or if you need operational information,  
we encourage you to call our Service  
Department. Our trained service technicians will  
be glad to help you.  
Additional information sources are necessary to  
realize the full potential of this machine. Trade  
journals, woodworking magazines, and your local  
library are good places to start.  
If you have comments dealing specifically with  
this manual, please write to our Bellingham,  
Washington location using the address in Section  
3: General Information. The specifications, draw-  
ings, and photographs illustrated in this manual  
represent the Model G1066/G1066Z/G1079 as  
supplied when the manual was prepared.  
However, due to Grizzly’s policy of continuous  
improvement, changes may be made at any time  
with no obligation on the part of Grizzly.  
Whenever possible, though, we send manual  
updates to all owners of a particular tool or  
machine. Should you receive one, add the new  
information to this manual and keep it for refer-  
ence.  
The Models G1066/G1066Z/G1079 were  
specifically designed for sanding wood. DO  
NOT MODIFY AND/OR USE THESE  
MACHINES FOR ANY OTHER PURPOSE.  
Modifications or improper use of this tool  
will void the warranty. If you are confused  
about any aspect of this machine, DO NOT  
use it until you have answered all your  
questions. Serious personal injury may  
occur.  
We have included some important safety mea-  
sures that are essential to this machine’s opera-  
tion. While most safety measures are generally  
universal, Grizzly reminds you that each work-  
shop is different and safety rules should be con-  
sidered as they apply to your specific situation.  
Like all power tools, there is danger associ-  
ated with the Model G1066/G1066Z/G1079  
Drum Sanders. Accidents are frequently  
caused by lack of familiarity or failure to pay  
attention. Use this tool with respect and  
caution to lessen the possibility of operator  
injury. If normal safety precautions are  
overlooked or ignored, serious personal  
injury may occur.  
This equipment has the potential to create  
flying debris which can cause severe eye  
injury. Always wear safety glasses or gog-  
gles when operating equipment. Everyday  
glasses or reading glasses only have  
impact resistant lenses, they are not safety  
glasses. Be certain the safety glasses you  
wear meet the appropriate standards of the  
American National Standards Institute  
(ANSI).  
-28-  
G1066/G1066Z/G1079 Drum Sander  
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MACHINE DATA  
SHEET  
Customer Service #: (570) 326-3806 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901  
MODEL G1066 DRUM SANDER  
Design Type ......................................................................................................Floor Model  
Overall Dimensions:  
Height ......................................................................................................................43"  
Width......................................................................................................................3412  
"
Depth ........................................................................................................................37"  
Shipping Weight................................................................................................430 lbs.  
Net Weight ........................................................................................................389 lbs.  
Crate Size................................................................................3912" L x 41" W x 44" H  
Footprint ......................................................................................................3412" x 24"  
Capacities:  
Maximum Board Width ..........................................................................................2312  
Maximum Board Thickness ....................................................................................414  
"
"
Minimum Board Length ............................................................................................ 9"  
Minimum Board Thickness ........................................................................................18  
"
Diameter of Drum ......................................................................................................6"  
Surface Speed of Drums ..............................................................................2300 FPM  
Conveyor Feed Rate ........................................................................................11 FPM  
Sanding Drum Motor:  
Type ....................................................................................................TEFC Capacitor  
Horsepower............................................................................................................5 HP  
Voltage ......................................................................................................220V ONLY  
Amps..........................................................................................................................25  
RPM ......................................................................................................................3450  
Phase ⁄ Cycle ..........................................................................................Single ⁄ 60 HZ  
Power Transfer ..............................................................................................Belt Drive  
Conveyor Motor:  
Type........................................................................................................Start Induction  
Horsepower ..........................................................................................................14 HP  
Voltage ..................................................................................................................220V  
Amps............................................................................................................................3  
RPM ......................................................................................................................1725  
Phase ⁄ Cycle ..........................................................................................Single ⁄ 60 HZ  
Power Transfer ..........................................................................................Chain Drive  
General Construction:  
Cabinet ..................................................................................................................Steel  
Sanding Drums (2) ........................................................................................Aluminum  
Pressure Rollers (3) ..........................................................................................Rubber  
Requires Sanding Rolls 6" Wide  
Specifications, while deemed accurate, are not guaranteed.  
G1066/G1066Z/G1079 Drum Sander  
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G1066 STAND & TABLE ELEVATION  
-30-  
G1066/G1066Z/G1079 Drum Sander  
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G1066 FEED BELT & TABLE  
G1066/G1066Z/G1079 Drum Sander  
-31-  
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G1066 DRUM & ROLLER MECHANISM  
-32-  
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G1066 PARTS LIST  
REF  
PART #  
DESCRIPTION  
REF  
PART #  
DESCRIPTION  
01 P1066001 FRAME  
61 P1066061 BUSHING SUPPORT  
62 P1066062 BUSHING  
64 P1066064 PLATE  
02 PN08  
03 PW02  
HEX NUT 38"-16  
WASHER 38  
"
04 P1066004 SIDE PANEL  
05 P1066005 BUSHING  
06 P1066006 SPROCKET  
07 P1066007 SPROCKET  
08-1 P1066008-1 TABLE LEAD SCREW  
08A P1066008A SHIM  
65A P1066065A DRIVE ROLLER  
65B P1066065B IDLE ROLLER  
66 P1066066 TABLE  
67 PSS07  
68 P1066068 SPROCKET  
69 P1066069 CONVEYOR BELT  
70 P1066070 PRESSURE ROLLER  
71 P1066071 SANDING DRUM  
SETSCREW 14"-20 x 12  
"
09 P1066009 ELEVATION CHAIN  
10 P1066010 FRONT BRACE  
11A PSS28  
12 P1066012 CRANK HANDLE ASSY  
13 G1838 DUST PORT  
SETSCREW 516"-24 X 38  
"
73 PR08M  
SNAP RING 19mm  
76 P1066076 CLIP  
77 P1066077 TENSION WHEEL  
FLT HD ALLEN® SCRW 14"-20 x 12  
"
14 P1066014 HOOD  
78 PFH17  
15 P1066015 REAR BRACE  
16 P1066016 REAR PANEL  
17 PSS07  
79 P1066079 BEARING  
81 P1066081 BEARING BLOCK  
SETSCREW 14"-20 x 12  
"
82 P1066082 BRG BLOCK PLATE TAPPD  
83 P1066083 GREASE FITTING  
18 P1066018 MOTOR PULLEY  
19 PK02  
20 P1066020 5 HP MOTOR  
KEY 14" x 14" x 3"  
85 PW02  
86 PLN01  
WASHER 38  
"
LOCK NUT 38"-16  
22 PB21  
HEX BOLT 38"-16 x 34  
"
87 P1066087 TENSION SPRING  
23 P1066023 BRACKET  
24 PW02  
88 P1066088 COMPRESSION SPRING  
FLAT WASHER 38  
"
89 PB05M  
HEX BOLT M6 - 1.0 x 8  
29 PHTEK1  
SELF TAPPING SCREW  
90A P1066090A BRACKET  
G2787 - G2789 SANDING PAPER ROLLS  
SETSCREW 14"-20 x 12  
94 P1066094 DRUM PULLEY  
30 P1066030 GROMMET  
92  
93 PSS07  
PWRCRD220L  
31  
POWER CORD  
"
32 P1066032 FRONT PANEL  
33 G4668  
34 PN02  
35A PN03  
SWITCH  
95 PK42M  
97 PSS03M  
98 PVB67  
KEY 6 x 6 x 30  
SETSCREW M6 - 1.0 x 8  
V BELT B-67  
HEX NUT 516"-18  
HEX NUT 316"-16  
36 P1066036 TABLE FRAME  
99 P1066099 FELT FOR SANDING DRUM  
101 P1073099 STRIKE  
37 PW07  
38 PLN02  
FLAT WASHER 516''  
LOCK NUT 14"-20  
102 P1073098 LATCH  
39 P1066039 FEED BELT MOTOR  
103 PS23  
104 PN14  
PHLP HD SCREW 8-32 x 14  
HEX NUT 8 - 32  
"
40 PW07  
41 PN02  
42 PK34M  
FLAT WASHER 516''  
NUT 516"-18  
105 P1066105 SPECIAL SETSCREW  
KEY 5 x 5 x 20mm  
106 PN05  
107 PB19  
HEX NUT 14"-20  
43 P1066043 DRIVE CHAIN  
44 P1066044 SPROCKET  
HEX BOLT 14"-20 x 12  
"
115 P1066115 SPRING PLATE  
116 P1066116 DUST SCOOP-DEFLECTOR  
45 PSS07  
SETSCREW 14"-20 x 12  
"
PWRCRD220S  
46 P1066046 MOTOR BRACKET  
117  
POWER CORD  
47 PSB16  
48 PW07  
49 PB03  
CAP SCREW 14"-20 x 34  
"
200 P1066200 G1066 ID/WARNING LABEL  
201 PLABEL-11 SAFETY GLASSES LABEL  
202 PLABEL-13 UPLUG SANDER LABEL  
203 PLABEL-14 ELECTRICITY LABEL  
204 PLABEL-17 FEED ONE PIECE LABEL  
205 PLABEL-16 DONT STAND BEHIND LABEL  
206 PLABEL-12 READ MANUAL LABEL  
FLAT WASHER 516''  
HEX BOLT 516"-18 x 1"  
50 P1066050 LEFT ROLLER END GUARD  
51 P1066051 ROLLER BRACKET  
53 PFH11  
FLT HD SCREW 14"-20 x 2 34  
"
58 P1066058 SPECIAL BOLT 14" - 20 x 58  
59 P1066059 RIGHT GUARD  
"
207 G8589  
LARGE GRIZZLY LOGO  
60 P1066060 SPECIAL BOLT  
G1066/G1066Z/G1079 Drum Sander  
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MACHINE DATA  
SHEET  
Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901  
MODEL G1066Z  
DRUM SANDER W/VARIABLE SPEED CONVEYOR  
Design Type ......................................................................................................Floor Model  
Overall Dimensions:  
Height ..................................................................................................................4412  
"
Width ........................................................................................................................50"  
Depth ........................................................................................................................37"  
Table Height ............................................................................................................33''  
Shipping Weight................................................................................................430 lbs.  
Net Weight ........................................................................................................389 lbs.  
Crate Size................................................................................3912" L x 41" W x 44" H  
Base Footprint..............................................................................................3412" x 24"  
Capacities:  
Maximum Board Width ..........................................................................................2312  
Maximum Board Thickness ....................................................................................414  
"
"
Minimum Board Length ............................................................................................ 9"  
Minimum Board Thickness ........................................................................................18  
"
Surface Speed of Drums ..............................................................................2300 FPM  
Conveyor Feed Rate ......................................................................Variable, 0-20 FPM  
Sanding Drum Motor:  
Type ............................................................................TEFC Capacitor Start Induction  
Horsepower............................................................................................................5 HP  
Voltage ......................................................................................................220V ONLY  
Amps..........................................................................................................................25  
Motor Speed ................................................................................................3450 RPM  
Phase ⁄ Cycle ..........................................................................................Single ⁄ 60 HZ  
Power Transfer .................................................................................... Dual Belt Drive  
Conveyor Motor:  
Type ......................................................................................Universal Variable Speed  
Horsepower ..........................................................................................................14 HP  
Voltage ..................................................................................................................220V  
Amps............................................................................................................................3  
Motor Speed..................................................................................................0-60 RPM  
Phase ⁄ Cycle ..........................................................................................Single ⁄ 60 HZ  
Power Transfer ..........................................................................................Chain Drive  
General Construction:  
Frame ....................................................................................................................Steel  
Sanding Drums (2) ....................................................................6'' Diameter Aluminum  
Pressure Rollers (3) ..................................................................1 58'' Diameter Rubber  
Conveyor Belt ..........................................24'' x 74'' Continuous Industrial Quality Belt  
................................................................................................2-4" Dust Ports Included  
....................................................................Easy Access Control Panel w/Load Meter  
..............................................................External Micro-Adjustment On Outfeed Drum  
....................................................................Uses 3" Wide Hook and Loop Sandpaper  
..............................................................................................Variable Speed Conveyor  
..............................................................................................Improved Dust Collection  
Specifications, while deemed accurate, are not guaranteed.  
G1066/G1066Z/G1079 Drum Sander  
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G1066Z  
-36-  
G1066/G1066Z/G1079 Drum Sander  
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G1066Z  
G1066/G1066Z/G1079 Drum Sander  
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G1066Z  
-38-  
G1066/G1066Z/G1079 Drum Sander  
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REF  
PART #  
DESCRIPTION  
REF  
PART #  
DESCRIPTION  
1
2
3
4
4A  
5
6
7
8
8A  
9
10  
11  
12  
13  
P1066001  
PN08  
PW02  
P1066Z004 SIDE PANEL  
P1066Z004A SIDE PANEL  
PW01  
P1066006  
P1066007  
P1066008  
PW01  
P1066009  
P1066010  
PSS02  
FRAME  
49  
50  
51  
52  
55  
58  
59  
60  
61  
62  
63  
64  
PSB12  
HEX BOLT 516"-18 x 114  
"
LEFT ROLLER END GUARD  
HEX NUT 38"-16  
P1066050  
P1066051  
PFH12  
PLN02  
PSB05  
P1066059  
P1066060  
P1066061  
PB57  
PW06  
P1066064  
FLAT WASHER 38  
"
"
ROLLER BRACKET  
FLT HD SCREW 14"-20 X 1"  
LOCK NUT 14"-20  
FLAT WASHER 12  
SPROCKET  
CAP SCREW 14"-20 X 34  
"
RIGHT ROLLER END GUARD  
SPROCKET W/SHAFT  
TABLE LEAD SCREW  
SPECIAL BOLT 12"-20 X 212  
BUSHING SUPPORT  
"
FLAT WASHER 12  
"
HEX BOLT 14"-20 X 14  
"
ELEVATION CHAIN  
FRONT BRACE  
SETSCREW 516"-18 x 38  
HANDLE  
FLAT WASHER 14  
PLATE  
"
"
65A P1066065A DRIVE ROLLER  
65B P1066065B IDLER ROLLER  
P1066012  
P1066013  
DUST PORT  
66  
67  
68  
69  
70  
71  
73  
74  
81  
82  
84  
85  
86  
88  
89  
90  
P1066066  
PSS08  
P1066068  
P1066Z069 CONVEYOR BELT  
P1066070 PRESSURE ROLLER  
P1066Z071 SANDING DRUM  
PR08M  
P1066062  
P1066081  
PSS08  
P1066082  
PW02  
PLN01  
P1066088  
PB51  
PW02  
TABLE  
13A P1066Z013A DUST PORT  
SETSCREW 516"-18 x 12  
SPROCKET  
"
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
26  
27  
28  
29  
30  
31  
P1066Z014 HOOD  
P1066015  
P1066Z016 REAR PANEL  
PSS07  
P1066018  
PK23M  
P1066Z020 5 HP MOTOR  
PN08  
PB18  
P1066023  
PW02  
PW02  
PN08  
P1066Z028 DUST DEFLECTOR  
PHTEK7  
REAR BRACE  
SETSCREW 14"-20 x 12  
"
MOTOR PULLEY  
KEY 5 x 5 x 25  
EXT RETAIN RING 19MM  
BUSHING  
BEARING BLOCK  
HEX NUT 38"-16  
HEX BOLT 38"-16 x 1"  
BRACKET  
SETSCREW 516"-24 x 12  
ADJUST PLATE  
"
FLAT WASHER 38  
LOCK NUT 38"-16  
"
FLAT WASHER 38  
FLAT WASHER 38  
HEX NUT 38"-16  
"
"
COMPRESSION SPRING  
HEX BOLT 14"-20 x 38  
FLAT WASHER 38  
"
"
SELF TAP SCREW #8 x 38  
"
90A P1066090A BRACKET  
91  
92  
P1066Z030 GROMMET 28  
PWRCRD220L POWER CORD  
PB19M  
HEX BOLT M8-1.25 x 24  
P1066Z092 HOOK & LOOP SANDBELT  
31A PWRCRD220S MOTOR CORD  
31B PWRCRD220S MOTOR CORD  
92A P1066Z092A HOOK & LOOP DRUM CVR  
93  
94  
95  
97  
98  
PSS09  
P1066094  
PK10  
PSS02M  
PVB67  
SETSCREW 38"-16 x 12  
DRUM PULLEY  
"
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
P1066032  
P1066Z033 SWITCH 5 HP  
PN02  
PN03  
P1066036  
PW07  
PSS33  
P1066Z039 FEED BELT MOTOR  
PW07  
***USE P1066032***  
KEY 14" x 14" x 114  
"
HEX NUT 516"-18  
SETSCREW M6-1.0 x 6  
V BELT B-67  
STRIKE  
HEX NUT 34"-16  
TABLE FRAME  
101 P1073099  
102 P1073098  
105 P1066115  
106 PN05  
107 PB02  
107A PW06  
FLAT WASHER 516"  
LATCH  
SETSCREW 38"-18 x 14  
"
"
SPRING GUIDE  
HEX NUT 14"-20  
FLAT WASHER 516"  
HEX NUT 516"-18  
KEY 5 x 5 x 20  
HEX BOLT 14"-20 x 58  
"
PN02  
FLAT WASHER 14  
"
PK34M  
P1066043  
P1066044  
PSS11  
P1066046  
PSB05  
107B PHTEK9  
HEX TAP SCR 14"-14 X 112  
"
DRIVE CHAIN  
118 P1066Z118 LINE CORD  
119 P1066Z119 LINE CORD  
SPROCKET  
SETSCREW 14"-20 x 14  
MOTOR BRACKET  
120 P1066Z120 EARTH LEAD (GREEN)  
125 PW06  
126 PSW10  
FLAT WASHER 14  
"
CAP SCREW 14"-20 x 34  
"
STRAIN RELIEF 34  
"
PW06  
FLAT WASHER 14  
"
136 P1066Z136 BASE STEEL CRATE  
G1066/G1066Z/G1079 Drum Sander  
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REF  
PART #  
DESCRIPTION  
REF  
PART #  
DESCRIPTION  
137 PS06  
PHLP HD SCR 10-24 X 38  
HEX NUT M4-0.7  
"
242 PSS04  
243 PLN02  
244 P1066Z244 POINTER  
SETSCREW 14"-20 x 516"  
LOCK NUT 14"-20  
138 PN04M  
139 PHTEK8  
140 PW03  
SELF TAP SCR #8 X 12  
FLAT WASHER #10  
"
245 PSS29  
246 PS07  
247 PW07  
248 PR09M  
249 PN05  
250 PB05  
251 PW06  
252 PS06  
253 PB03  
254 PW07  
SETSCREW 316"-24 x 14  
"
PHLP HD SCR 14"-20 x 38  
FLAT WASHER 516"  
141A PLABEL-22 HAND PINCH IN BELT LABEL  
"
141B PLABEL-17 FEED ONLY ONE PIECE LABEL  
143 P1066Z143 MACHINE ID/WARNING  
144 PLABEL-11 SAFETY GLASSES LABEL  
145 PLABEL-13 UNPLUG SANDER LABEL  
146 PLABEL-14 ELECTRICITY LABEL  
147 PLABEL-22 HAND PINCH IN BELT LABEL  
201 P1066Z201 LEFT BEARING SEAT  
201A P1066Z201A RIGHT BEARING SEAT  
202 P1066Z202 MOUNTING BRACKET  
202A P1066Z202A THRUST BEARING SEAT  
204 P1066Z204 MICRO ADJUST SCREW  
206 P1066Z206 BEVEL GEAR A  
EXT RETAIN RING 20MM  
HEX NUT 14"-20  
HEX BOLT 14"-20 x 34  
"
FLAT WASHER 14  
"
PHLP HD SCR 10-24 x 38  
HEX BOLT 516"-18 x 1"  
FLAT WASHER 516"  
"
255 P1066Z255 DOOR  
256 PS01  
257 PW03  
258 PN07  
259 PHTEK6  
PHLP HD SCR 10-24 x 12  
"
FLAT WASHER #10  
HEX NUT 10-24  
207 P1066Z207 BEVEL GEAR B  
SELF TAP SCR #10 x 38  
"
212 P1066Z212 LOCK COLLAR  
260 P1066Z260 VARIABLE SPEED CIRCUIT BOARD  
214 P1066Z214 DRIVE SHAFT  
261 PS22  
262 PN07  
PHLP HD SCR 316"-4 x 58  
HEX NUT 10-24  
"
216 P1066Z216 SPECIAL BOLT 516"-18 X 12  
217 P1066Z217 WIRING PANEL  
"
263 P1066Z263 HINGE  
218 P1066Z218 MAGNETIC SWITCH BOX  
219 P1066Z219 PEDESTAL ARM  
220 P1066Z220 CONTROL BOX  
221 P1066Z221 CONTROL PANEL  
222 P1066Z222 MAGNETIC SWITCH  
223 P1066Z223 ON SWITCH  
264 P1066Z264 NYLON CABLE TIES  
266 P1066Z266 HANDLE  
267 PSB11  
268 P51101  
CAP SCR 516"-18 x 114  
"
THRUST BEARING 51101  
269 P1066Z269 SPROCKET SHAFT  
270 P1066Z270 SPROCKET  
224 P1066Z224 OFF SWITCH  
271 P1066Z271 ADJUSTMENT PLATE  
272 P1066Z272 LEFT SUPPORT ARM  
273 P1066Z273 RIGHT SUPPORT ARM  
225 P1066Z225 EMGCY STOP SWITCH  
226 P1066Z226 LOAD/AMP METER  
227 P1066Z227 CABLE MARKER  
228 P1066Z228 CONTROL WIRE  
229 P1066Z229 CONTROL WIRE  
230 P1066Z230 CONTROL WIRE  
231 P1066Z231 CONTROL WIRE  
232 P1066Z232 CONTROL WIRE  
233 P1066Z233 CONTROL WIRE  
234 P1066Z234 CONTROL WIRE  
235 P1066Z235 CONTROL WIRE  
236 P1066Z236 CONTROL WIRE  
237 P1066Z237 CONTROL WIRE  
238 P1066Z238 LOCK HANDLE  
239 P1066Z239 SCALE  
274 P6201  
275 PN11  
BEARING 6201-2RS  
HEX NUT 38"-24  
276 PS17M  
277 G8589  
277A PHTEK10  
PHLP HD SCR M4-0.7 x 6  
GRIZZLY LOGO, LARGE  
TAP SCREW #4 X 38  
"
278 P1066Z278 SELF ADHESIVE FOAM  
279 P1066Z279 DUST COVER  
280 P1066Z280 DRIVE SHAFT BRACKET  
281 P1066Z281 DIRECTION LABEL  
282 PSB01  
283 PSS34  
CAP SCREW 14"-20 x 58  
"
SETSCREW 10"-24 x 12  
"
284 P1066Z284 FIXING PLATE  
285 PSB07  
286 PHTEK6  
CAP SCREW 516"-18 x 34  
"
240 P1066Z240 CONTROL KNOB  
SELF TAP SCR #10 x 38  
"
241 PB03  
HEX BOLT 516"-18 x 1"  
290 P1066Z290 TABLE HEIGHT SCALE  
-40-  
G1066/G1066Z/G1079 Drum Sander  
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MACHINE DATA  
SHEET  
Customer Service #: (570) 326-3806 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901  
MODEL G1079 16" DRUM SANDER  
Design Type ......................................................................................................Floor Model  
Overall Dimensions:  
Width ........................................................................................................................27"  
Height ..................................................................................................................4212  
"
"
Depth ....................................................................................................................3612  
Weight (Shipping)..............................................................................................285 lbs.  
Weight (In Place) ..............................................................................................276 lbs.  
Box #1 Size..............................................................................4012" L x 30" W x 34" H  
Box #2 Size ....................................................................................11" L x 8" W x 6" H  
Footprint ..........................................................................................................29" x 32"  
Capacities:  
Maximum Board Width ............................................................................................16"  
Maximum Board Thickness ....................................................................................312  
Minimum Board Length ..............................................................................................9"  
Minimum Board Thickness ........................................................................................18  
"
"
Diameter of Drum ......................................................................................................6"  
Surface Speed of Drums ..............................................................................2100 FPM  
Conveyor Speed ..............................................................................................11 FPM  
Sanding Drum Motor:  
Type ............................................................................TEFC Capacitor Start Induction  
Horsepower ........................................................................................................112 HP  
Voltage ......................................................................................................220V ONLY  
Amps............................................................................................................................8  
RPM ......................................................................................................................3450  
Phase / Cycle..........................................................................................Single ⁄ 60 HZ  
Power Transfer ..............................................................................................Belt Drive  
Conveyor Feed Motor:  
Type ............................................................................TEFC Capacitor Start Induction  
Horsepower ..........................................................................................................14 HP  
Voltage ..................................................................................................................220V  
Amps............................................................................................................................3  
RPM ......................................................................................................................1725  
Phase ......................................................................................................Single ⁄ 60 Hz  
Power Transfer ..........................................................................................Chain Drive  
General Construction:  
Cabinet ..................................................................................................................Steel  
Sanding Drums (2) ........................................................................................Aluminum  
Pressure Rollers (3) ..........................................................................................Rubber  
Requires Sanding Rolls 6" Wide  
Specifications, while deemed accurate, are not guaranteed.  
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G1066/G1066Z/G1079 Drum Sander  
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G1079 STAND & TABLE ELEVATION  
G1066/G1066Z/G1079 Drum Sander  
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G1079 FEED BELT & TABLE  
-44-  
G1066/G1066Z/G1079 Drum Sander  
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G1079 DRUM & ROLLER MECHANISM  
G1066/G1066Z/G1079 Drum Sander  
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G1079 PARTS LIST  
REF  
PART #  
DESCRIPTION  
REF  
PART #  
DESCRIPTION  
49 PB03  
HEX BOLT 516"-18 x 1"  
01 P1079001 FRAME  
02 PN08  
03 PW02  
HEX NUT 38"-16  
50 P1066050 LEFT ROLLER END GUARD  
51 P1066051 ROLLER BRACKET  
53 PFH11  
WASHER 38  
"
FLT HD SCREW 14"-20 x 2 34  
"
04 P1079004 SIDE PANEL  
05 P1066005 BUSHING  
54 P1073099 STRIKE  
55 P1073098 LATCH  
06 P1066006 SPROCKET  
07 P1066007 SPROCKET W/SHAFT  
08 P1079008 TABLE SCREW  
08A P1066008A SHIM  
58 P1066058 CAP SCREW 14"-20 X 58  
"
59 P1066059 RIGHT ROLLER END GUARD  
60 P1066060 SPECIAL BOLT  
61 P1066061 BUSHING SUPPORT  
62 P1066062 BUSHING  
63 P1079063 IDLER ROLLER  
64 P1066064 PLATE  
09 P1079009 ELEVATION CHAIN  
10 P1079010 FRONT BRACE  
11 PSS28  
12 P1066012 CRANK HANDLE  
13 G1838 DUST PORT  
SETSCREW 516"-24 x 38  
"
65 P1066065 DRIVE ROLLER  
66 P1079066 TABLE  
14 P1079014 HOOD  
67 PSS07  
SETSCREW 14"-20 x 12  
"
15 P1079015 REAR BRACE  
16 P1079016 REAR PANEL  
68 P1066068 SPROCKET  
17 PSS08  
SETSCREW 14"-20 x 12  
"
69 P1079069 CONVEYOR BELT  
70 P1079070 PRESSURE ROLLER  
71 P1079071 SANDING DRUM  
18 P1079018 MOTOR PULLEY  
19 PK12M  
KEY 5 x 5 x 30mm  
20 P1079020 1 12 HP MOTOR  
73 PR08M  
SNAP RING 19mm  
21 PN08  
22 PB21  
23 PB05  
24 PW02  
25 PN05  
HEX NUT 38"-16  
74 P1066074 BUSHING  
76 P1066076 CLIP  
HEX BOLT 38"-16 x 34  
HEX BOLT 14"-20 x 34  
"
"
77 P1066077 TENSION WHEEL  
78 P1066078 SPECIAL BOLT 14"-20 x 58  
79 P1079079 BEARING  
"
FLAT WASHER 38  
HEX NUT 14"-20  
"
81 P1079081 BEARING BLOCK  
82 PSS28  
26 P1066115 SPRING PLATE  
27 P1079027 ADJUST PLATE  
SETSCREW 516"-24 x 38  
"
83 P1066083 GREASE FITTING  
28 PN14  
29 PHTEK1  
30 PS24  
HEX NUT 8-32  
85 PW02  
86 PLN01  
FLAT WASHER 38  
"
SELF TAPPING SCREW  
PHLP HD SCREW 8-32 x 38  
POWER CORD  
LOCK NUT 38"-16  
"
PWRCRD220L  
87 P1066087 TENSION SPRING  
88 P1066088 SPRING  
31  
32 P1079032 FRONT PANEL  
89 PB05M  
90 P1079090 BRACKET  
HEX BOLT M6-1.0 x 8  
33 PSW06  
34 PN02  
SWITCH  
NUT 516"-18  
G2787 - G2789  
92  
SANDING PAPER ROLLS  
SETSCREW M6-1.0 x 8  
V BELT B-60  
35 P1079035 HEX NUT  
97 PSS03M  
98 PVB60  
99 P1066099 FELT FOR SANDING DRUM  
116 P1079100 DUST DEFLECTOR  
36 P1079036 TABLE FRAME  
37 PW07  
38 PLN02  
FLAT WASHER 516''  
LOCK NUT 14"-20  
39 P1066039 FEED BELT MOTOR  
40 PW07  
41 PN02  
42 PK34M  
FLAT WASHER 516''  
HEX NUT 516"-18  
KEY 5 x 5 x 20mm  
PWRCRD220S  
117  
MOTOR CORD  
200 P1079200 G1079 ID/WARING LABEL  
203 PLABEL-10 SAFETY GLASSES LABEL  
204 PLABEL-11 READ MANUAL LABEL  
205 PLABEL-12 UNPLUG SANDER LABEL  
206 PLABEL-13 ELECTRICITY LABEL  
207 PLABEL-15 DONT STAND BEHIND LABEL  
208 PLABEL-16 FEED ONLY ONE LABEL  
43 P1079043 DRIVE CHAIN  
44 P1066044 SPROCKET  
45 PSS07  
SETSCREW 14"-20 x 12  
"
46 P1066046 MOTOR BRACKET  
47 PSB05  
48 PW06  
CAP SCREW 14"-20 x 34  
"
FLAT WASHER 14''  
209 G8588  
SMALL GRIZZLY LOGO  
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TROUBLESHOOTING GUIDE  
PROBLEM  
SOLUTION  
Sanding Paper Clogs Too Quickly  
PAM® cooking spray applied to the sandpaper  
will reduce clogging and improve the  
effectiveness of cleaning sticks.  
1. Sanding paper grit too fine  
2. Too much material is removed at once  
3. Dirty board surface  
4. Insufficient dust collection  
5. Stock is too oily  
6. Board contains too much moisture  
7. Sandpaper worn out  
Sandpaper tearing  
1. Drums not perpendicular to feed direction  
2. Drums not parallel to conveyor table  
3. Sandpaper edges overlapped  
4. Tape is slipping  
5. Too much material is removed at once  
Rounding Occurs on the Edges  
1. Too much material is removed at once  
Uneven Thickness on Right and Left Side  
of the Board  
1. Drums are not parallel to conveyor table  
2. Uneven wear of sanding paper  
Stock Slips on the Conveyor Belt  
1. Too much material is removed at once  
2. Too much dust on the conveyor belt surface  
3. Worn conveyor belt  
Shiny Spots on Sanded Surface  
Marks on Sanded Surface  
1. Sanding paper too old  
2. Drums too high  
1. Partial damage to sanding paper  
2. Paper overlapped on edges  
Conveyor Belt does not Run Smoothly or  
Stops Completely  
1. Conveyor belt tension is incorrect  
2. Belt tracking is incorrect  
Consistently noticeable “snipe” (more  
material removed from the ends of the  
board than the middle).  
1. No outfeed support  
2. Pressure roller spring tension incorrect  
3.  
Drum height incorrect in relation to pressure  
rollers  
For your safety, turn switch “off” and dis-  
connect the machine from power source  
before any troubleshooting. Please refer  
to the adjustment section to make correc-  
tions.  
-48-  
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Maintenance Notes  
Maintenance Performed  
Date  
Approximate Hours Of Use  
G1066/G1066Z/G1079 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, spe-  
cial, 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 car-  
ton. We will not accept any item back without this number. Proof of purchase must accompany the mer-  
chandise.  
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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WARRANTY CARD  
Name ____________________________________________________________________________________  
Street ____________________________________________________________________________________  
City ______________________________________________________________State________Zip_________  
Phone Number_______________________E-Mail_______________________FAX________________________  
MODEL #____________________Serial#_______________________Order#_____________________________  
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?  
10.  
Which benchtop tools do you own? Check all that apply.  
___Advertisement  
___Catalog  
___World Wide Web  
___Friend  
___Card Deck  
___1" x 42" Belt Sander  
___5" - 8" Drill Press  
___8" Table Saw  
___8" - 10" Bandsaw  
___Disc/Belt Sander  
___Mini Jointer  
___6" - 8" Grinder  
___Mini Lathe  
___10" - 12" Thickness Planer  
___Scroll Saw  
___Spindle/Belt Sander  
___Other__________________________________________________  
Which of the following magazines do you subscribe to.  
2.  
___Other__________________________________________________  
How many of the machines checked above are Grizzly? ____________  
___American Woodworker  
___Cabinetmaker  
___Practical Homeowner  
___Shop Notes  
___Today’s Homeowner  
___WOOD  
___WoodenBoat  
___Woodshop News  
___Woodsmith  
___Woodwork  
___Woodworker  
___Woodworker’s Journal  
___Workbench  
11.  
12.  
___Family Handyman  
___Fine Homebuilding  
___Fine Woodworking  
___Home Handyman  
___Journal of Light Construction  
___Old House Journal  
___Popular Mechanics  
___Popular Science  
Which portable/hand held power tools do you own? Check all that apply.  
___Belt Sander  
___Biscuit Joiner  
___Circular Saw  
___Detail Sander  
___Drill/Driver  
___Orbital Sander  
___Palm Sander  
___Portable Planer  
___Saber Saw  
___Reciprocating Saw  
___Router  
___Miter Saw  
___Popular Woodworking  
___Other__________________________________________________  
Which of the following woodworking/remodeling shows do you watch?  
___Other__________________________________________________  
What machines/supplies would you like Grizzly Industrial to carry?  
3.  
13.  
14.  
15.  
___Backyard America  
___Home Time  
___The New Yankee Workshop  
___This Old House  
__________________________________________________________  
__________________________________________________________  
__________________________________________________________  
What new accessories would you like Grizzly Industrial to carry?  
___The American Woodworker  
___Woodwright’s Shop  
___Other__________________________________________________  
What is your annual household income?  
4.  
5.  
___$20,000-$29,999  
___$30,000-$39,999  
___$40,000-$49,999  
___$50,000-$59,999  
___$60,000-$69,999  
___$70,000-$79,999  
___$80,000-$89,999  
___$90,000 +  
__________________________________________________________  
__________________________________________________________  
__________________________________________________________  
What other companies do you purchase your tools and supplies from?  
__________________________________________________________  
__________________________________________________________  
Do you think your purchase represents good value?  
What is your age group?  
___20-29  
___30-39  
___40-49  
___50-59  
___60-69  
___70 +  
6.  
7.  
8.  
How long have you been a woodworker?  
___0 - 2 Years  
___2 - 8 Years  
___8 - 20 Years  
___20+ Years  
16.  
17.  
18.  
How would you rank your woodworking skills?  
___Yes  
Would you recommend Grizzly Imports to a friend?  
___Yes ___No  
___No  
___Simple  
___Intermediate  
___Advanced  
___Master Craftsman  
What stationary woodworking tools do you own? Check all that apply.  
Would you allow us to use your name as a reference for Grizzly customers  
in your area? Note: We never use names more than three times.  
___Air Compressor  
___Band Saw  
___Panel Saw  
___Planer  
___Drill Press  
___Power Feeder  
___Radial Arm Saw  
___Shaper  
___Spindle Sander  
___Table Saw  
___Yes  
___No  
___Drum Sander  
___Dust Collector  
___Horizontal Boring Machine  
___Jointer  
___Lathe  
___Mortiser  
19.  
Comments:_________________________________________________  
__________________________________________________________  
__________________________________________________________  
__________________________________________________________  
__________________________________________________________  
___Vacuum Veneer Press  
___Wide Belt Sander  
___Other__________________________________________________  
How many of your woodworking machines are Grizzly? _____________  
9.  
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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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