Grizzly G1066Z, G1079 User Manual
DRUM SANDER
MODEL G1066/G1066Z/G1079
INSTRUCTION MANUAL
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
Model G1066
Model G1066Z
WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains
chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement, and
other masonry products.
• Arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to filter out microscopic particles.
Table Of Contents
PAGE
1. SAFETY
SAFETY RULES FOR POWER TOOLS ............................................................................2-3
SAFETY RULES FOR THE DRUM SANDER ......................................................................4
2. CIRCUIT REQUIREMENTS
220V OPERATION ................................................................................................................5
FUSING..................................................................................................................................5
GROUNDING ........................................................................................................................5
EXTENSION CORDS ............................................................................................................6
WIRING DIAGRAMS ............................................................................................................6
3. GENERAL INFORMATION
COMMENTARY ....................................................................................................................7
UNPACKING..........................................................................................................................8
PIECE INVENTORY ..............................................................................................................8
HARDWARE RECOGNITION CHART ..................................................................................9
CLEAN UP ..........................................................................................................................10
SITE CONSIDERATIONS....................................................................................................10
4. ASSEMBLY
BEGINNING ASSEMBLY ....................................................................................................11
DUST PORTS......................................................................................................................11
CRANK HANDLE ................................................................................................................12
G1066Z CONTROL PANEL ................................................................................................12
5. ADJUSTMENTS
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
6. OPERATIONS
G1066Z CONTROL PANEL ................................................................................................22
TEST RUN ..........................................................................................................................23
G1066/G1079 ......................................................................................................................23
G1066Z ..........................................................................................................................24-25
CHOOSING SANDPAPER ..................................................................................................25
7. MAINTENANCE
GENERAL............................................................................................................................26
LUBRICATION ....................................................................................................................26
BEARING REPLACEMENT ................................................................................................27
8. CLOSURE..................................................................................................................................28
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
-2- G1066/G1066Z/G1079 Drum Sander
Safety Instructions For Power Tools
SECTION 1: SAFETY
5. KEEP CHILDREN AND VISITORS
AWAY. All children and visitors should be
kept at a safe distance from work area.
6. MAKE WORKSHOP CHILD PROOF with
padlocks, master switches, or by removing
starter keys.
7. NEVER FORCE TOOL. It will do the job
better and safer at the rate for which it was
designed.
8. USE RIGHT TOOL. Do not force tool or
attachment to do a job for which it was not
designed.
1. KEEP GUARDS IN PLACE and in working
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.
3. KEEP WORK AREA CLEAN. Cluttered
areas and benches invite accidents.
4. NEVER USE IN DANGEROUS ENVIRONMENT. Do not use power tools in
damp or wet locations, or where any flammable or noxious fumes may exist. Keep
work area well lighted.
For Your Own Safety Read Instruction
Manual Before Operating This Equipment
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD
result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY
result in minor or moderate injury. It may also be used to alert
against unsafe practices.
This symbol is used to alert the user to useful information about
proper operation of the 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 substitute for proper accident prevention measures.
NOTICE
G1066/G1066Z/G1079 Drum Sander -3-
9. USE PROPER EXTENSION CORD. Make
sure your extension cord is in good condition. Conductor size should be in accordance 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 extension cords if they become damaged.
Minimum Gauge for Extension Cords
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 covering 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.
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.
13. NEVER OVERREACH. Keep proper foot-
ing and balance at all times.
LENGTH
AMP RATING 25ft 50ft 100ft
0-6 18 16 16
7-10 18 16 14
11-12 16 16 14
13-16 14 12 12
17-20 12 12 10
21-30 10 10 No
Safety Instructions For Power Tools
14. MAINTAIN TOOLS WITH CARE. Keep
tools sharp and clean for best and safest
performance. Follow instructions for lubricating and changing accessories.
15. DISCONNECT TOOLS before servicing
and changing accessories, such as blades,
bits, cutters, and the like.
16. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off
position before plugging in. Also, the magnetic switch on this machine may start if the
switch gets bumped hard enough.
17. USE RECOMMENDED ACCESSORIES.
Consult the owner’s manual for recommended accessories. The use of improper
accessories may cause risk of injury.
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, binding 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.
19. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Do not
leave tool until it comes to a complete stop.
20. NEVER USE UNDER THE INFLUENCE of
alcohol or drugs, or when tired.
21. NEVER ALLOW UNSUPERVISED OR
UNTRAINED PERSONNEL TO OPERATE THE MACHINE. Make sure any
instructions you give in regards to the operation of the machine are approved, correct,
safe, and clearly understood.
-4- G1066/G1066Z/G1079 Drum Sander
Additional Safety Instructions
For The Drum Sander
• DO NOT allow anyone to stand at the out-
feed end when feeding your stock.
• DO NOT jam workpiece into the machine
during operation. Firmly grasp the workpiece in both hands and ease it into the
machine using light pressure.
• DO NOT wear loose clothing while operat-
ing this machine. Roll up or button sleeves
at the cuff.
• DO NOT sand any stock narrower than
1
⁄8''.
• DO NOT attempt to sand thin stock by
using a “dummy” board under your workpiece.
• DO NOT sand stock shorter than 9''.
• DO NOT place hands near, or in contact
with, sanding drums during operation.
• DO NOT allow fingers to get pinched
between board and conveyor belt during
operation. This may pull the operator’s
hand into the machine and cause serious
injury or death!
• NEVER leave the machine running unat-
tended.
• 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.
• 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 moving parts have come to a complete stop.
Never attempt to adjust conveyor belt
tracking when the sanding drums are
engaged.
• REPLACE sanding paper when it
becomes worn.
• ALWAYS inspect board stock for nails,
staples, knots, and other imperfections
that could be dislodged and thrown from
the machine during sanding operations.
• PERFORM machine inspections and
maintenance service promptly when called
for.
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 glasses you wear meet the appropriate standards
of the American National Standards
Institute (ANSI).
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.
G1066/G1066Z/G1079 Drum Sander -5-
SECTION 2: CIRCUIT REQUIREMENTS
220V Single-Phase
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 necessary for use with the sander.
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 “hardwire” 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.
Figure 1. Typical plug configuration for 220V,
single-phase operation.
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 current. 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.
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 conductor. If repair or replacement of the electric
cord or plug is necessary, do not connect the
equipment grounding conductor to a live terminal.
This equipment must be
grounded. Verify that any
existing electrical outlet
and circuit you intend to
plug into is actually
grounded. Under no circumstances should the
grounding pin from any
three-pronged plug be
removed. Serious injury
may occur.
-6- G1066/G1066Z/G1079 Drum Sander
The Model G1066/G1066Z/G1079 comes prewired 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.
Wiring Diagram
We have covered some basic electrical
requirements for the safe operation of your
Sander. These requirements are not necessarily 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.
Extension Cords
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 extension 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.
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.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
E-Mail: techsupport@grizzly.com
Web Site: http://www.grizzly.com
G1066/G1066Z/G1079 Drum Sander -7-
Commentary
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
satisfaction.
This manual covers all three models because
these machines are essentially the same except
for the motor size, the size of stock they can handle, the rotation of the drums and the feed rates. A
number of optional accessories for these
machines are available through the Grizzly catalog. 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 procedures. 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:
Grizzly Industrial, Inc.
C
/
O Technical Documentation
P.O. Box 2069
Bellingham, WA 98227-2069
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 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, we urge you to insert the new information
with the old and keep it for reference.
Read the manual before
assembly and operation.
Become familiar with
the machine and its
operation before beginning any work. Serious
personal injury may
result if safety or operational information is not
understood or followed.
Description
Motor Size
Sanding Width
Drum Rotation
Feed Rates
G1066
5 HP
23
1
⁄2"
With Feed
11 FPM
G1066Z
5 HP
231⁄2"
Against Feed
Var. 0-20 FPM
G1079
2 HP
16"
With Feed
11 FPM
-8- G1066/G1066Z/G1079 Drum Sander
Unpacking
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 containers and all packing materials for possible inspection by the carrier or its agent. Without the packing 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.
Piece Inventory
After all the parts have been removed from the
carton, you should have:
• 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
1
⁄2" (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 expediency, 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 combined weight of people and the machine.
Serious personal injury may occur if they
are not.
When you are completely satisfied with the condition of your shipment, you should inventory its
parts.
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.
G1066/G1066Z/G1079 Drum Sander -9-
Hardware Recognition Chart
Use this chart to match up
hardware pieces during the
assembly process!
#
10
Lock
Nut
Wing
Nut
S
A
W
D
I
A
R
E
H
M
E
T
⁄8''
E
R
5
1
⁄4''
Thumb
Screw
Phillips
Head
5
⁄16''
3
⁄8''
7
Cap
Screw
⁄16''
Screw
Carriage
Bolt
Hex
1
⁄2''
Setscrew
5
⁄8''
Head
Bolt
Lock
Washer
MEASURE BOLT DIAMETER BY PLACING INSIDE CIRCLE
4mm
6mm
5mm
10mm
8mm
15mm
20mm
Washer
1
⁄4''
3
⁄8''
1
⁄2''
5
⁄8''
25mm
10mm
30mm
35mm
40mm
45mm
12mm
LINES ARE 1MM APART
50mm
55mm
60mm
⁄16'' INCH APART
1
65mm
16mm
70mm
75mm
LINES ARE
Countersunk
Phillips
Head
Screw
Flange
Bolt
Phillips
Head
Hex
Bolt
Hex
Nut
5
⁄16''
7
⁄16''
9
⁄16''
3
⁄4''
7
⁄8''
1''
1
1
⁄4''
1
⁄2''
1
3
⁄4''
1
2
1
⁄4''
2
1
⁄2''
2
3
⁄4''
2
3
Slotted
Screw
A
S
H
W
D
I
A
R
9
⁄16''
M
E
T
E
R
E
Button
Head
D
I
A
A
H
S
W
R
E
M
E
T
⁄2''
E
R
1
Screw
Phillips
Head
Sheet
Metal
Screw
D
I
A
R
12mm
D
I
A
D
I
A
M
R
M
E
M
E
T
E
R
D
I
A
R
M
E
H
E
S
T
E
A
R
W
4mm
E
T
E
R
D
I
A
R
M
E
E
H
T
S
E
A
R
W
6mm
T
E
A
S
S
W
H
A
S
A
E
H
E
W
E
H
W
R
10mm
R
8mm
WASHERS ARE MEASURED BY THE INSIDE DIAMETER
D
I
A
R
W
H
S
A
E
7
W
⁄16''
R
3
E
H
S
A
H
S
R
E
⁄8''
5
A
D
⁄16''
W
R
1
W
E
H
S
A
#
D
⁄4''
R
10
M
E
T
E
R
I
A
M
E
T
E
R
I
A
M
E
T
E
R
D
I
A
M
E
T
E
R
D
I
A
M
E
T
E
R
W
E
H
S
A
-10- G1066/G1066Z/G1079 Drum Sander
Site Considerations
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 additional support. Contact an architect or structural
engineer if you have any question about the ability of your floor to handle the weight.
WORKING CLEARANCES
Working clearances can be thought of as the distances 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 relative position of each machine to one another for
efficient material handling. Be sure to allow yourself sufficient room to safely run your machines in
any foreseeable operation.
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 extension cords are not obstructing high-traffic areas.
Be sure to observe local electrical codes for proper installation of new lighting, outlets or circuits.
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 equipment.
Clean Up
The unpainted surfaces are coated with a waxy
oil to protect them from corrosion during shipment. Remove this protective coating with a solvent cleaner or citrus-based degreaser such as
Grizzly’s G7895 Degreaser. To clean thoroughly,
some parts may need to be removed. Avoid chlorine-based solvents as they may damage painted
surfaces should they come in contact. Always follow the manufacturer’s instructions when using
any type of cleaning product.
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.
Do not smoke while using
solvents. A risk of explosion 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 ingested. Always work in wellventilated areas far from
potential ignition sources
when dealing with solvents. Use care when disposing of waste rags and
towels to be sure they do
not create fire or environmental hazards.
G1066/G1066Z/G1079 Drum Sander -11-
SECTION 4: ASSEMBLY
Dust Ports
Figure 2. Top-mounted 4" dust ports.
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.
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 respiratory illness.
Beginning Assembly
Most of your new drum sander has been assembled 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.
Wear safety glasses during the entire assembly
process. Failure to comply may result in serious
personal injury.
Disconnect power to the
machine when performing any maintenance or
assembly. Failure to do
this may result in serious
personal injury.
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.
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 double sided tape between the plastic dust ports and
the sheet metal cover, then secure in place with
sheet metal screws.
-12- G1066/G1066Z/G1079 Drum Sander
Crank Handle
Figure 3. Crank handle attachment.
Figure 4. Control panel attached to base unit.
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.
Setscrew
G1066Z Control Panel
To mount the control panel to the base unit on
the Model G1066Z:
1. Match the holes in the control arm mounting
plate to the threaded holes on the side of the
the sander.
2. Use the
5
⁄16"-18 x 1" hex bolts and washers to
secure the control arm to the sander body as
shown in Figure 4.
G1066/G1066Z/G1079 Drum Sander -13-
SECTION 5: ADJUSTMENTS
Drum Alignment
Figure 5. Feed direction perpendicular to drum.
Keep loose clothing out
of the way of machinery
and keep hair pulled
back.
Wear safety glasses during the entire adjustment
process. Failure to comply may result in serious
personal injury.
Disconnect power to the
machine when performing any adjustments or
maintenance. Failure to
do this may result in serious personal injury.
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.
Figure 6. Sanding drum parallel to feed belt.
In order to make the above adjustments, it is necessary to know how to adjust the bearing blocks.
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.
2. Raise or lower the bearing block by rotating
the setscrews (See Figure 7). Turn very
gradually
1
⁄8 of a turn or less.
Figure 7. Bearing block adjustments.
Bearing Block
Setscrews
Locknut
-14- G1066/G1066Z/G1079 Drum Sander
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.
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.
Figure 9. Model G1066Z rear drum
adjustment control.
Figure 10. Dimensions of gauge block.
3. Repeat the measurements with the rear
drum and brace. If the measurements are
not within
1
⁄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 adjusted the drums, do not forget to tighten the
lock nuts and recheck the alignment.
To adjust the drums parallel to the conveyor
belt:
1. Disconnect the sander from the power
source!
2. For this step, you will need a 24" long block
of wood. A quality 2x4 will work fine (See
Figure 10).
Micro-Adjustment Knob
Micro-Adjust Lock Knob
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.
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.
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.
To adjust the drums perpendicular to the feed
direction:
1. Disconnect the sander from the power
source!
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.
G1066/G1066Z/G1079 Drum Sander -15-
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.
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.
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 reference 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.
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 second mark. This will be reference #2 and will
be used for setting up the rear drums.
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 procedure 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 difference 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 application.
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