15" OPEN-END
WIDE-BELT SANDER
MODEL G9983
INSTRUCTION MANUAL
COPYRIGHT © OCTOBER, 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.
PRINTED IN TAIWAN
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Table Of Contents
PAGE
1.
SAFETY
SAFETY RULES FOR POWER TOOLS ..........................................................................................2-3
SAFETY RULES FOR THE WIDE BELT SANDER ............................................................................4
INTRODUCTION ........................................................................................................................................5
CIRCUIT REQUIREMENTS ......................................................................................................................6
220V SINGLE-PHASE..........................................................................................................................6
GROUNDING ......................................................................................................................................7
EXTENSION CORDS ..........................................................................................................................7
WIRING ................................................................................................................................................7
MACHINE FEATURES................................................................................................................................8
EXTERNAL FEATURES ......................................................................................................................8
CONTROL PANEL ..............................................................................................................................8
ACCESS DOORS ................................................................................................................................9
SET UP......................................................................................................................................................10
UNPACKING ......................................................................................................................................10
PIECE INVENTORY ..........................................................................................................................10
HARDWARE RECOGNITION CHART ..............................................................................................11
CLEAN UP..........................................................................................................................................12
SITE CONSIDERATIONS ..................................................................................................................12
BEGINNING ASSEMBLY ..................................................................................................................13
HANDWHEEL HANDLE ....................................................................................................................13
PLATEN..............................................................................................................................................14
AIR HOSE ..........................................................................................................................................15
SANDING BELT ................................................................................................................................15
SANDING BELT TENSION................................................................................................................16
PRESSURE ROLLERS......................................................................................................................16
DUST COLLECTION..........................................................................................................................17
TEST RUN ....................................................................................................................................17-18
RECOMMENDED ADJUSTMENTS ..................................................................................................18
OPERATIONS ..........................................................................................................................................19
BEFORE STARTING..........................................................................................................................19
CHOOSING SANDPAPER ................................................................................................................19
CONVEYOR HEIGHT ........................................................................................................................20
FEED BELT SPEED ..........................................................................................................................20
LOAD METER ....................................................................................................................................21
OPERATION ......................................................................................................................................21
PLATEN DEPTH ................................................................................................................................22
CLEANING PADS ..............................................................................................................................22
MAINTENANCE ........................................................................................................................................23
GENERAL ..........................................................................................................................................23
LUBRICATION ..................................................................................................................................23
CLEANING SANDING BELTS ..........................................................................................................23
EMPTYING FILTERS ........................................................................................................................23
MAINTENANCE LOG ........................................................................................................................24
SERVICE ADJUSTMENTS ......................................................................................................................25
OSCILLATION TIMING ................................................................................................................25-26
OSCILLATION SPEED ......................................................................................................................26
OSCILLATION RETURN....................................................................................................................27
LIMIT SWITCHES ..............................................................................................................................27
PRESSURE ROLLER DEPTH ..........................................................................................................28
PRESSURE ROLLER TENSION ......................................................................................................29
FEED BELT TENSION ......................................................................................................................30
FEED BELT TRACKING ....................................................................................................................30
V-BELT TENSION..............................................................................................................................31
REPLACING V-BELTS..................................................................................................................31-32
PLATEN GRAPHITE ..........................................................................................................................33
AIR SYSTEM......................................................................................................................................33
REPLACING BRAKES ......................................................................................................................34
SERVICE LOG ..................................................................................................................................35
CLOSURE ................................................................................................................................................36
2.
3.
4.
5.
6.
7.
8.
9.
DATA SHEET ........................................................................................................................................................37
AIR SYSTEM..........................................................................................................................................................38
WIRING DIAGRAM ..........................................................................................................................................39-41
PARTS BREAKDOWN ....................................................................................................................................42-51
TROUBLESHOOTING ......................................................................................................................................52-53
WARRANTY AND RETURNS................................................................................................................................54
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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.
-2-
G9983 15" Open-End Wide-Belt Sander
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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.
G9983 15" Open-End Wide-Belt Sander
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Additional Safety Instructions
For The Wide-Belt 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 operating correctly.
•
•
NEVER operate sander with the access
doors open.
•
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 belts are
engaged.
1
•
•
DO NOT sand any stock thinner than ⁄8''.
DO NOT sand stock shorter than 9''
DO NOT attempt to sand thin stock by
using a “dummy” board under your work-
piece.
•
•
DO NOT place hands near, or in contact
with, sanding belts during operation.
•
•
REPLACE sanding belt when it becomes
worn.
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!
ALWAYS inspect board stock for nails,
staples, knots, and other imperfections
that could be dislodged and thrown from
the machine during sanding operations.
•
ALWAYS WEAR A DUST MASK in addi-
tion to using a dust collector. This machine
produces wood dust that may cause aller-
gic reactions or respiratory problems.
•
MAKE SURE all operators have read and
understand this manual before allowing
them to use the sander. This includes
employees, students and family!
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).
As with all power tools, there is danger
associated with Wide-Belt 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.
-4-
G9983 15" Open-End Wide-Belt Sander
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SECTION 2: INTRODUCTION
We are also pleased to provide this manual with
the Model G9983. It was written to guide you
through assembly, review safety considerations,
and cover general operating procedures. It repre-
sents our effort to produce the best documenta-
tion possible. If you have any comments regard-
ing 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
We are proud to offer the Grizzly Model G9983
Wide-belt Sander. Your machine is part of a
growing Grizzly family of fine woodworking
machinery. When used according to the guide-
lines set forth in this manual, you can expect
years of trouble-free, enjoyable operation and
proof of Grizzly’s commitment to customer satis-
faction.
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: [email protected]
With its 15" open end, the Model G9983 has the
capability to sand a 30" wide workpiece in two
passes. This machine also features a 5 HP sand-
1
ing belt motor and a ⁄4 HP feed motor, indepen-
The specifications, drawings, and photographs
illustrated in this manual represent the Model
G9983 as supplied when the manual was pre-
pared. However, owing to Grizzly’s policy of con-
tinuous improvement, changes may be made at
any time with no obligation on the part of Grizzly.
For your convenience, we always keep current
Grizzly manuals available on our website at
will be reflected in these manuals as soon as they
are complete.
dent conveyor and sanding belt motor control,
pneumatic belt tensioning and tracking, two rubber
rollers, a load meter, a safety shut-off bar, and a 5"
dust port.
G9983 15" Open-End Wide-Belt Sander
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SECTION 3: CIRCUIT REQUIREMENTS
220V Single-Phase
The Model G9983 features a 5 HP, 220V single-
phase motor. This motor will safely draw about 30
amps under load. The Model G9983 also features
a 1⁄4 HP feed motor that draws approximately 1.8
amps under load. Total amperage draw for this
machine is approximately 32 amps under load.
Use a 35 amp circuit breaker for the Model
G9983. 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
Figure 1. Plug configuration for 220V, single-
phase 6-50 plug and outlet.
own dedicated circuit and should not share a cir-
cuit with any other machine. A standard 2-pole
breaker is necessary for use with the sander.
We recommend using a NEMA-style 6-50 plug
and outlet (similar to the one shown in Figure 1)
for the Model G9983. 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.
-6-
G9983 15" Open-End Wide-Belt Sander
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Grounding
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 exten-
sion cords.
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.
Wiring
The Model G9983 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 qual-
ified electrician when doing any electrical work on
this equipment.
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.
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 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.
G9983 15" Open-End Wide-Belt Sander
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SECTION 4: MACHINE FEATURES
External Features
Control Panel
The control panel houses the main power switch,
the feed belt ON/OFF buttons and the sanding
belt ON/OFF buttons. Please refer to Figure 3 to
identify these controls.
To help you understand the set up and operation
instructions, we recommend that you become
familiar with the basic features of your new
sander.
A. Main Power ON / Emergency STOP switch.
B. Sanding Belt OFF button.
C. Sanding Belt ON button.
D. Feed Belt OFF button.
Please match up the list below with the letters in
Figure 2 to identify the external sander compo-
nents.
A. Control Panel
B. Table Extension
C. Conveyor Height Handwheel
D. Conveyor Height Gauge
E. Dust Port
E. Feed Belt ON button.
F. Power Indicator Light
F. Load Meter
D
A
E
G. Emergency Stop Bar
H. Pressure Regulator
E
A
F
B
C
F
B
G
Figure 3. These are the main power controls.
C
H
D
Figure 2. These are the basic external
components of the sander.
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Figure 5 shows the layout behind the right-hand
access door.
Access Doors
A. Oscillating Roller
There are access doors located on each side of
the sander. Throughout the manual, we refer to
these doors as the “left-hand access door” and
the “right-hand access door.” These terms are
referenced as if you are facing the front of the
machine.
B. Oscillation Air Filter
C. Limit Switch
D. Oscillation Return Valve
E. Oscillation Speed Valve
F. Oscillation Timing Knob
Figure 4 shows the layout behind the left-hand
access door.
A. Limit Switch
B. Sanding Belt Tension Switch
C. Platen Adjustment Knob
A
B
D
A
B
C
F
E
Figure 5. These items are behind the
right-hand access door.
C
Figure 4. These items are behind the
left-hand access door.
G9983 15" Open-End Wide-Belt Sander
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SECTION 5: SET UP
Unpacking
Piece Inventory
The Model G9983 Wide-belt Sander is shipped
from the manufacturer in a carefully packed car-
ton. 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.
After all the parts have been removed from the
carton, you should have:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Sanding Unit
Tool Box
Combo Wrench 8/10MM
Combo Wrench 11/13MM
Combo Wrench 12/14MM
Combo Wrench 17/19MM
Combo Box-Wrench 30/37MM
Phillips Screwdriver
Hex Wrench Set
Platen Puller
Platen
Door Handle (2)
Handwheel Handle
Sanding Belt #180
Sanding Belt #240
The Model G9983 is a
heavy
machine—
approx. 1000 lb. DO
NOT over-exert yourself
while unpacking or
moving your machine.
You will need assis-
tance and power equip-
ment. Serious personal
injury may occur if safe
moving methods are not
followed.
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. Loose parts in the sander crate
(not including hardware) are shown in Figure 6.
When you are completely satisfied with the con-
dition of your shipment, you should inventory its
parts.
NOTICE
Figure 6. Loose parts (not including hardware)
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.
for the Model G9983.
-10-
G9983 15" Open-End Wide-Belt Sander
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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
5⁄16''
9⁄16''
3
⁄8''
Carriage
Bolt
Button
Head
Screw
Cap
Screw
Flange
Bolt
7⁄16''
1
⁄
2''
Phillips
Head
Sheet
Metal
Screw
Phillips
Head
Hex
Hex
Head
Bolt
1
⁄2''
Setscrew
Washer
Bolt
7⁄16''
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''
5⁄16''
10mm
11⁄4''
11⁄2''
13⁄4''
2
21⁄4''
21⁄2''
23⁄4''
3
10mm
1
⁄
4''
12mm
6mm
8mm
16mm
#10
G9983 15" Open-End Wide-Belt 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. For opti-
mum performance from your machine, make
sure you clean all moving parts or sliding
contact surfaces that are coated. 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 wide-belt sander represents a large
weight load in a moderate sized footprint. Most
shop floors will be adequate for the weight of the
wide-belt 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 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.
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.
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.
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.
-12-
G9983 15" Open-End Wide-Belt Sander
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Handwheel Handle
Beginning Assembly
Most of your new wide-belt sander has been
assembled at the factory, but some setup is
required after delivery. We have organized the
setup process into steps. Please make sure the
sander is placed in its final position in your shop
and follow along in the order presented in this
section.
To install the handwheel handle:
1. Thread the handle into the handwheel as
shown in Figure 7.
2. After handle is completely threaded down,
tighten the jamnut so the handle will not
come loose. Make sure to leave the plastic
sleeve loose enough to rotate when you
crank the handwheel.
Keep loose clothing out
of the way of machinery
and keep hair pulled
back.
Disconnect power to the
machine when perform-
ing any setup or assem-
bly. Failure to do this
may result in serious
personal injury.
Figure 7. Install handle onto handwheel.
Wear safety glasses dur-
ing the entire setup
process. Failure to com-
ply may result in serious
personal injury.
NOTICE
The waxy grease must be completely
cleaned from the table column for smooth
table height adjustments.
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.
G9983 15" Open-End Wide-Belt Sander
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The platen must now be set even with the sand-
ing rollers.
Platen
To set the platen even with the belt rollers:
The housing for the platen can be accessed by
opening the door on the left-hand side of the
machine.
1. Lower the conveyor table as far as it will go.
2. Open the access door on the left-hand side
and locate the platen adjustment knob
shown in Figure 9.
A graphite sheet is mounted on the platen. Before
installing, make sure that the graphite sheet is
mounted on the left-hand side of the platen, as it
will be inserted. Figure 8 shows the platen being
installed correctly.
The direction of the graphite sheet is important
because it must wrap around the platen in the
same direction as the sanding belt rotates. If not,
the sanding belt will unwrap the graphite sheet,
exposing the sanding belt to the metal body of the
platen. Note: the graphite sheet on the platen is
considered a “consumable” item, similar to the
sanding belts, and normal wear and tear from
machine operation is not covered under warran-
ty. For additional information on the platen, turn to
page 33.
To insert the platen:
Figure 9. Use this knob to raise/lower the platen.
1. Line up the platen dovetail with the housing
so it is positioned as described above.
3. Place a straightedge across both lower belt
rollers and rotate the adjustment knob until
the platen barely touches the straightedge.
The platen should now be set even with the
belt rollers.
2. Slide the platen into the housing as far as it
can go.
Graphite Sheet
Figure 8. Install the platen with the graphite
sheet on the left-hand side.
-14-
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Air Hose
Sanding Belt
The air hose connection is located at the regula-
tor on the front of the machine.
The Model G9983 is designed for 16" x 48" sand-
ing belts.
To connect the air hose:
To install a sanding belt:
1. Fit the hose over the regulator nozzle.
1. Open the left-hand side door for access.
2. Secure the hose with a hose clamp as shown
in Figure 10 and turn on your air compres-
sor.
2. Make sure the greasy protective coating has
been cleaned from the metal belt roller
before installing sanding belt.
3. Regulate the air pressure to 75 PSI. This
is the normal operating pressure for the
Model G9983.
3. Fit the sanding belt completely over the three
sanding rollers as shown in Figure 11. The
belt will move counter-clockwise during rota-
tion—make sure that the arrows on the
inside of the belt point in the direction of rota-
tion.
Figure 10. Secure air hose with a hose clamp.
NOTICE
Figure 11. Place belt over the three belt rollers
to install. Make sure arrows on inside of belt
point in the direction of rotation.
DO NOT exceed 75 lb. of air pressure.
Damage to the machine components may
result.
NOTICE
The main shut off valve should remain
closed until air pressure is needed. This will
reduce wear and tear on the air system com-
ponents.
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Sanding Belt Tension Pressure Rollers
The sanding belt tension is controlled by a switch
located inside the upper portion of the machine
(see Figure 12). To locate it, open the access
door on the left-hand side of the sander.
Always keep the pressure rollers set below
the level of the sanding roller. If the pres-
sure rollers are even, or higher than the
sanding roller, the wood WILL be propelled
from the sander at a high rate of speed.
This situation could cause serious person-
al injury.
The pressure rollers have been set at the factory,
but for increased personal safety, you should ver-
ify that they are below the sanding belt.
To check the feed pressure:
1. Disconnect the sander from the power
source!
2. Place a piece of scrap wood of uniform thick-
Figure 12. This is the belt tension switch.
ness across the conveyor so it spans both
front and rear pressure rollers at the same
time.
To Tighten Belt Tension:
Flip the switch up. The vertical cylinder will auto-
matically tighten the top roller to the correct ten-
sion.
3. Make sure the platen is even with the sand-
ing belt rollers.
To Loosen Belt Tension:
4. With the air pressure connected, the sanding
belt installed, and the belt tension switch ON,
slowly raise the conveyor and verify that the
board touches both pressure rollers before it
touches the sanding belt.
Flip the switch down. The vertical cylinder will
automatically loosen the belt tension for belt
removal.
If the board does not touch both pressure
rollers before it touches the sanding belt,
then the pressure rollers must be adjust-
ed before operation. See Section 8:
Service Adjustments for step-by-step
instructions on how to do this.
NOTICE
The belt tension switch is part of the air
control system. This means the machine
must have air pressure for the switch to
work correctly.
NOTICE
Always tighten belt before starting sander!
-16-
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Dust Collection
Test Run
Once the assembly is complete and the adjust-
ments are done to your satisfaction, you are
ready to test run the sander.
DO NOT operate the Model G9983 without an
adequate dust collection system. This
machine creates substantial amounts of
wood dust while in operation. Failure to use
a dust collection system may result in short
and long-term respiratory illness.
Before you test run your machine:
1. Read back through Section 1: Safety
Instructions, Section 4: Assembly, and the
previous instructions in this section to make
sure that all precautions have been taken for
safe operation.
The dust collection port is located on top of the
sander and measures 5" in diameter. It will be
necessary to attach a 5" dust collection pipe over
this port before operation. If you have rigid ducts
in your dust collection system, we recommend
that you connect the ducts to your sander with
flexible hose. The flex-hose easily attaches with a
5" hose clamp and it absorbs any movement that
may occur during operation. Please refer to the
Grizzly catalog for current price and ordering
information.
2. Make sure the machine is connected to an
air compressor and the pressure gauge on
the sander reads 75 PSI.
3. Make sure that any tools or foreign objects
have been removed from the machine.
4. Last but not least, make sure the wiring is
correct. Did you follow the instructions from
Section 2: Circuit Requirements? If you are
not confident with the wiring, go back and
double check that all precautions have been
taken to ensure safety to the operator and
the circuit. When you are confident, connect
the machine to the power source. The power
indication light on the control panel should
light up.
Your dust collector must be able to move 800-
1200 CFM at the Wide-belt Sander. If you have
a remotely located dust collector, or if 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 may be present on your stock as it comes
out of the sander. This is normal.
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 personal injury.
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.
To test run the sander:
1. Turn on the power supply at the main panel.
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Recommended
Adjustments
Long term exposure to
this machine during
operation may cause
hearing
loss.
Wear
approved hearing pro-
tection to minimize this
risk!
Disconnect power to the
machine when perform-
ing any adjustments.
Failure to do this may
result in serious person-
al injury.
2. Start both the sanding belt and the feed belt,
making sure your finger is poised over the
STOP button, just in case there is a problem.
The wide-belt sander should run smoothly,
with little or no vibration or abnormal rubbing
noises. It is normal, however, for the air oper-
ated tracking to make a rhythmic back and
forth noise.
For your convenience, the adjustments listed
below have been performed at the factory and no
further setup is required to operate your machine.
Strange or unnatural noises should be investigat-
ed 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.
However, because of the many variables
involved with shipping, we recommend that you
at least check the following adjustments to
ensure the best possible results from your new
machine.
All of these adjustments are covered in step-by-
step detail in Section 8: Service Adjustments.
If noises occur that cannot be found by visual
inspection, feel free to contact our Service
Department for help.
Recommended adjustment checklist:
•
•
•
•
•
•
•
•
Pressure Rollers
Oscillation Timing
Oscillation Speed
Oscillation Return
Limit Switch Position
Feed Belt Tension
Feed Belt Tracking
V-Belt Tension
-18-
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SECTION 6: OPERATIONS
Before Starting
Keep loose clothing out
of the way of machinery
and keep hair pulled
back during operations.
Before beginning any work with your machine,
make sure you have read through this entire
manual. Your safety while running this machine
absolutely depends on your familiarity and com-
pliance with the information in this manual.
Disconnect power to the
machine when perform-
ing any maintenance or
adjustments. Failure to
do this may result in seri-
ous personal injury.
Choosing Sandpaper
The Model G9983 takes 16"W x 48"L sanding
belts.
Wear safety glasses dur-
ing the entire operation
process. Failure to com-
ply may result in serious
personal injury.
The grit you choose will depend on the type of
work, the species of wood and the stage of fin-
ishing. Below is a chart that groups abrasives into
different classes and shows which grits fall into
each class. We recommend using aluminum
oxide for best results.
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.
Grit
Type
60
Coarse
80-100
Medium
Fine
120-150
The general rule of thumb is to sand a workpiece
with progressively higher grit numbers, with no
one grit increase of more than 50.
NOTICE
The following section was designed to give
instructions on the basic operations of this
wide-belt sander. However, it is in no way
comprehensive of every wide-belt sander
application. WE STRONGLY RECOMMEND
that you read books, trade magazines, or
get formal training to maximize the potential
of your wide-belt sander.
Ultimately, the type of wood you use and your
stage of finish will determine the best grit types to
install on your sander.
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Conveyor Height
Feed Belt Speed
Conveyor height is controlled by turning the
handwheel shown in Figure 13. A scale is locat-
ed near the handwheel for gauging conveyor
movement. The scale is marked in millimeters
and inches. Figure 14 demonstrates how the
handwheel movement affects the conveyor.
The feed belt motor (shown in Figure 15 with the
cover removed) controls the speed of the feed
belt. The Model G9983 features speeds of 13.1
FPM and 16.4 FPM.
After you have moved the conveyor to the desired
height, lock it in place with the conveyor lock han-
dle shown in Figure 13.
Handwheel
Conveyor
13.1
16.4
FPM
FPM
Height Scale
Figure 15. This is the feed belt motor. Place the
chain on either of the sprockets and the feed
belt will travel at the speed shown.
Conveyor
Lock Handle
Figure 13. The handwheel moves the conveyor and
To change feed belt speeds:
1. Unplug the sander!
the scale tells you how far the conveyor moved.
2. Remove the cap screw that secures the feed
1
⁄64"
belt motor cover.
3. Loosen the for motor mount bolts so that the
motor will slide up enough to get the chain off
the sprockets.
5
⁄32"
4. Determine which speed is best for your appli-
cation and place the chain on either set of
the sprockets shown in Figure 15.
5. Replace the motor cover and secure it with
the cap screw.
Figure 14. This illustration shows how
the handwheel moves the conveyor.
-20-
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Load Meter
Operation
Under most sanding conditions, a normal cut is
no more than .5mm (approx. 1⁄64"). This depth can
be achieved by ⁄8th turn of the conveyor height
handle. Attempts to remove too much can cause
jamming, wood burning, rapid paper wear or tear-
ing, poor finish and belt slippage. For each pass,
turn the stock 180° to ensure an even cut.
The load meter shown in Figure 16 displays the
current amperage draw of the sanding belt motor.
The needle rises when you increase the load on
the sanding belts and decreases when you
decrease the load. Use this meter to avoid over-
loading your machine with too heavy of a cut.
1
NEVER exceed 30 amps—this is the maxi-
mum that your machine can safely handle!
Since various types of stock will react differently
to various loads, use trial-and-error to determine
the best settings for your applications. As a gen-
eral rule, always start with a small load and work
your way up. DO NOT push your machine to its
maximum load; instead, use multiple passes or
install a coarser grit paper.
Make sure any stock that you run through the
sander is clean and free of any defects or for-
eign materials that might damage the sand-
ing or conveyor belt.
NOTICE
We strongly recommend sending wide
stock through the sander two or three times
after the correct height has been estab-
lished. This is an important step to prevent
burning your wood or ruining sandpaper.
The following is the correct start-up and oper-
ating procedure:
1. Start the dust collector.
2. Make the thickness adjustment by placing
the workpiece on the conveyor table and turn
ing the conveyor handle until the workpiece
can be sanded and fed through smoothly.
Turning the handle clockwise will raise the
conveyor table. Turning the conveyor handle
counter-clockwise will lower the conveyor
table.
Figure 16. This is the load meter.
3. Remove the workpiece from the conveyor
belt.
4. Start the sander and feed your stock.
Retrieve by standing at the side—not at the
outfeed end.
Long term exposure to
this machine while oper-
ating may cause hearing
loss. Wear approved
hearing protection to
minimize this risk!
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Platen Depth
Cleaning Pads
The platen position allows for 3 types of opera-
tion. These different positions can be adjusted by
rotating the knob shown in Figure 17. Notice that
the knob has a scale on it. By keeping track of
how many revolutions you have rotated the knob,
you can determine how far you have moved the
platen.
Cleaning Pads (one is shown in Figure 18) are
the perfect way to enhance your wide-belt sand-
ing operations. Simply set the conveyor table to
height and feed the pad through to “unload” a
used sanding belt. This cleaning will greatly
increase the lifespan of your sanding belts. Since
each pad can be used dozens of times, you will
actually save money in the long run. Check with
the current Grizzly catalog for more details.
Figure 18. Sanding belt cleaning pad.
Figure 17. The scale on this knob tells you how
far you have moved the platen.
The three basic platen positions:
Platen Up — The platen is raised above the level
of the sanding rollers. This position allows the
front roller to remove large amounts of material
quickly, but leaves a rough finish. The best belt
grit for this position is #100 or coarser.
Platen Even — The platen is set even with the
sanding rollers. The rollers work together with the
platen to produce intermediate/final finishing. The
best belt grit for this position is #100-#180.
Platen Down — The platen is lowered below the
sanding rollers. The majority of the work is
accomplished by the platen pressure on the
workpiece. The result is a smooth, flat finish. The
best belt grit for this position is #180 or finer.
Avoid Lowering the platen more than .2MM below
the sanding belt rollers—this is the equivalent to
1 full turn of the knob.
-22-
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SECTION 7: MAINTENANCE
Cleaning Sanding Belts
Disconnect power to the
machine when perform-
ing any maintenance or
assembly. Failure to do
this may result in serious
personal injury.
You can greatly increase the lifespan of your
sanding belts if you clean them often. As men-
tioned on page 22, cleaning pads are the best
way to do this.
Whenever sanding belts decrease in perfor-
mance because of heavy loading, feed the clean-
ing pad through the sander. Repeat this process
until the sanding belts are clean again—this will
ensure optimum performance.
General
Make a habit of inspecting your Model G9983
each time you use it. Failure to routinely
inspect your wide-belt sander for damage and
wear could result in unsatisfactory work
results, premature component or machinery
failure, or operator injury. We recommend you
create a checklist for routine inspection and
maintenance. Check for the following conditions
and repair or replace when necessary.
Emptying Filters
There are two filters on the Model G9983. The
first filter is located under the main regulator that
houses the pressure gauge. The second filter,
shown in Figure 19, is located near the oscillation
controls. Since the eye fork configuration is prone
to collecting sawdust, check and empty this filter
often.
•
•
•
•
•
Loose mounting bolts.
Worn or damaged sanding belt.
Worn or damaged cords, plugs or switch.
Damaged V-belt.
Any other condition that could hamper the
safe operation of this machine.
Lubrication
Roller bearing blocks must be lubricated every 20
hours of operation with high-quality, lithium based
grease via grease fittings on top of each block.
Other moving parts, such as chains, should be
lubricated periodically with a light machine oil. Do
not use too much lubrication because excess can
attract dirt and sawdust and will clog the chain
mechanism.
Figure 19. Unscrew this filter to empty it.
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Maintenance Log
Maintenance Performed
Date
Approximate Hours Of Use
-24-
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SECTION 8: SERVICE ADJUSTMENTS
Oscillation Timing
Keep loose clothing out
of the way of machinery
The first step in adjusting the oscillation is timing
the side to side movement the belt makes when
oscillating. The belt should take the same amount
of time to travel to one side as it did the other.
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.
Keep your hands clear of the sanding belt
when making the adjustments in this step.
The sandpaper is designed to remove a lot of
material quickly whether it is wood or skin!
To time the oscillation movement:
Wear safety glasses dur-
ing the entire assembly
process. Failure to com-
ply may result in serious
personal injury.
1. Open both access doors to the upper part of
the machine so you can view the belt move-
ment. The sanding belt should also be on the
rollers and tightened. Turn the sanding belt
ON.
2. Count the amount of time it takes the belt to
move from one side to the other. If the oscil-
lation balance is correct, the belt will move
from one side to the other in even intervals.
If the balance is not correct, the belt may
move to one side very quickly, then very
slowly to the other.
3. If the belt immediately moves too far and
shuts off the machine, then loosen the oscil-
lation timing control knob shown in Figure 20
and move it toward the front or rear of the
machine to rotate the eccentric.
4. Loosen the belt tension, rebalance the sand-
ing belt and retighten the belt tension.
Repeat steps 2 and 3.
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Oscillation Speed
Use the valve shown in Figure 21 to control the
speed of the sanding belt oscillation. Make sure
the oscillation is balanced before adjusting the
speed.
Figure 20. This is the oscillation
timing control knob.
5. When you get the belt to oscillate without
stopping, experiment with the timing knob to
see the effect its movement has on the belt
oscillation.
6. Position the timing knob so the belt moves
from one side to the other, back and forth, in
even intervals.
Figure 21. Use the knob on this valve to control
oscillation speed.
7. Lock the knob in place by turning it clock-
wise.
Keep loose clothing out
of the way of moving
machinery and keep
long hair pulled back.
Long term exposure to
this machine during
operation may cause
hearing
loss.
Wear
To increase the oscillation speed, open the
valve (turn the knob counter-clockwise). For nor-
mal operation, adjust the oscillation speed so
each direction of belt movement takes approxi-
mately 2 seconds. When the speed is correct,
tighten the jamnut so the knob will not move.
approved hearing pro-
tection to minimize this
risk!
To decrease the oscillation speed, close the
valve (turn the knob clockwise). When the speed
is correct, tighten the jamnut.
Different speeds may yield different finishing
results. Experiment with trial-and-error to deter-
mine the best speed for your particular situation.
-26-
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Oscillation Return
Limit Switches
The oscillation return keeps the sanding belt in
motion. The valve shown in Figure 22 controls
the oscillation return.
The limit switches are mounted on both sides of
the sanding belt. They are designed to stop the
sander if the belt travels too far to one side of the
top roller.
Air Eye
Fork
The limit switches are factory set and should
require no adjustments. However, if they stop
working correctly, they move during adjustments,
or they get replaced, proper adjustments will be
required.
To adjust the limit switches:
1. Center the sanding belt on the top roller.
Measure the distance between the edge of
the sanding belt and the limit switch lever.
This distance should be approximately 1⁄2". If
this measurement is different, then loosen
the adjustment bolts shown in Figure 23 on
the incorrect side.
Oscillation
Return
Valve
Figure 22. This is the oscillation return valve
and the air eye fork.
To adjust the oscillation return:
1. Turn off all power to the sander, but keep air
pressure going into the machine. Lower the
belt and slide it out of the way of the eye fork.
2. Block the airflow between the eye fork until
the top roller rotates to one side and does not
return.
3. With the airflow still blocked, loosen the jam-
nut on the valve knob and tighten the knob to
close the valve.
Figure 23. Loosen these bolts to adjust
4. Now clear the eye fork so the air will flow
between it again. Watch the top roller and
slowly open the valve.
the limit switch position.
2. Slide the mounting bracket in the necessary
direction until there is a 1⁄2" gap between the
edge of the belt and the limit switch lever.
5. When the top roller begins to move, open the
1
1
valve another ⁄4 to ⁄2 turn of the knob.
Tighten the jamnut. DO NOT open the valve
more than needed or there will be excessive
pressure on the air system.
3. Tighten the adjustment bolts to secure the
mounting bracket. Test the sander to verify
that operation returns to normal.
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Pressure Roller
Depth
Right-Hand
Pressure
Depth Bolt
Left-Hand
Pressure
Depth Bolt
Variables such as feed rate, depth of the cut, and
type of sanding belt can play a big part in deter-
mining the proper amount of downward pressure
exerted by the rollers. Some experimentation
may be necessary with pressure roller spring ten-
sion to achieve the desired results. However,
under no circumstances should the pressure
roller depth be set even, or higher than, the sand-
ing rollers or platen.
Figure 24. These are the pressure roller depth
bolts at the front of the machine. The rear depth
bolts are in the same location at the rear.
To adjust the pressure roller depth:
1. Unplug the sander!
4. With the air pressure connected, and the
sanding belt installed and tensioned, raise
the pressure rollers above the sanding belt
rollers.
2. Joint and plane a 6" W x 36"L piece of wood,
then rip it down the middle. This will give you
two boards that are nearly the exact same
thickness.
5. Raise the conveyor until the the boards touch
the sanding belt rollers. The rollers should
evenly touch the boards at the same time.
3. Place one board along the length of the con-
veyor belt on the right-hand side so it is
directly beneath both front and back pres-
sure roller depth bolts. Place the other board
on the left-hand side so it is directly beneath
both front and back pressure roller depth
bolts. Figure 24 shows the front left-hand
and front right-hand pressure roller adjust-
ment bolts.
6. Turn the conveyor handwheel counterclock-
1
wise /8th of a turn. This should lower the
conveyor approximately .020" or .5mm.
7. Lower each end of the pressure rollers so
they barely touch the boards. Lock in place.
-28-
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4. Turning the nut on the adjustment bolt clock-
wise will increase the tension and counter-
clockwise will decrease the tension.
Pressure Roller
Tension
A quick way to gauge that the spring tension is
consistent is to measure the distance from the top
of the nut to the the top of the adjustment bolt. If
the board pulls to one side during sanding, loosen
that side in small increments as needed.
Pressure roller tension is largely set by trial and
error. If there is not enough tension, the work-
piece will not pass through the sander evenly and
may possibly be launched toward the operator. If
there is too much tension, the feed belt will expe-
rience premature wear and the workpiece will
pass through the sander sluggishly (if at all).
To adjust the pressure roller tension:
1. Unplug the sander!
2. Make sure the pressure roller depth is set
correctly.
3. Open both access doors and locate the pres-
sure roller tension springs shown in Figure
25.
Figure 25. This is one of the four
pressure roller adjustment bolts.
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Feed Belt Tension
Feed Belt Tracking
To adjust the feed belt tension:
To check the feed belt tracking:
1. Disconnect the sander from the power
source!
1. Turn the feed belt ON.
2. If the belt moves to one side then you need
to immediately stop the machine and adjust
the belt tracking. If the belt tracks evenly,
leave it alone.
2. Move the emergency brake plate up and out
of the way.
3. Tension adjustments are made using the
bolts located on the left and right side of the
To adjust the feed belt tracking:
1. Unplug the sander!
front conveyor roller as shown in
.
Figure 26
4. When tensioned properly you should not be
able to lift the belt off the conveyor surface or
slide it back and forth, and it should not slip.
2. Use the adjustment bolts (one is shown in
Figure 26) to correct the tracking.
5. Perform the “Feed Belt Tracking” instructions
to ensure that the tracking did not change
during tensioning.
3. Run the feed belt for a few minutes after the
adjustment to allow the belt to move into its
new position. When you are satisfied that the
belt has finished moving, stop the feed belt.
4. If more adjustments are necessary, experi-
ment with how the movement of the adjust-
ment bolts affects the belt tracking; do this
until you can make the feed belt track even-
ly. Make sure you did not loosen the belt dur-
ing the tracking process. If you did, adjust
each side of one belt roller away from the
machine, as evenly as possible.
Figure 26. This is a feed belt adjustment bolt.
-30-
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V-Belt Tension
Replacing V-Belts
Inspect the V-belts closely; if you see any glazing,
cracking or fraying, replace the belts. Always
replace the two V-belts at the same time for prop-
er power transmission.
The sanding belt is driven by two V-belts on the
Model G9983. The V-belts must have adequate
tension for proper power transmission. Proper
tension is usually achieved when the V-belts can
be deflected no more than 1" with moderate fin-
ger pressure at the midpoint between the wide-
belt pulleys and the motor pulleys. The large
cover on the right-hand side of the sander must
be removed to access the V-belts and the sand-
ing motor.
To replace the V-belts:
1. Disconnect sander from the power
source and shut off air pressure.
2. Loosen the top nut on the motor adjustment
bolt shown in Figure 28. Turn the bottom nut
counterclockwise to raise the motor (or pry
motor up with a scrap piece of wood) and
loosen the V-belts.
Thread the nuts shown in Figure 27 down to
tighten the V-belts, or thread the nuts up to
loosen the V-belts.
Figure 27. Turning these nuts allows you to
raise/lower the motor to adjust the V-belts.
Figure 28. Loosen the V-belt by using the
adjustment nuts.
3. When V-belts are sufficiently loose, slide
them off of the motor pulley.
Always inspect V-belts for damage or deteri-
oration when adjusting for tension. Should
you find evidence of cracking, abrasion or
damage from wood chips or other foreign
materials, replace the belt immediately. Belt
breakage may lead to mechanical damage or
operator injury.
4. To remove the V-belts from the roller pulley,
the roller needs to be removed. Open the
left-hand access door and remove the platen
micro-adjust knob by loosening the setscrew
that secures the face. The plate underneath
the knob is secured to the casting by two
setscrews—remove these. Figure 29 shows
the knob and indicator plate removed from
the casting.
5. Remove the large cap screws, also shown in
Figure 29, to loosen the casting on the roller
shafts.
G9983 15" Open-End Wide-Belt Sander
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Figure 29. Remove platen adjustment knob,
Figure 31. Remove this roller shaft nut located
indicator plate, and large cap screws.
behind right-hand access door.
6. Work the casting off the roller shafts as
shown in Figure 30.
8. Slide out the front roller shaft, as shown in
Figure 32, to get the V-belts off of the pulley.
Figure 30. Work the casting off the roller shafts.
Figure 32. Remove roller.
7. Open the right-hand access door and locate
the large nut shown in Figure 31 and remove
it with the box wrench included with the
machine.
9. Installation is the reverse of removal. If pos-
sible, have an assistant help you when
installing the V-belts and the roller. Also, an
assistant can be helpful on the other end of
the roller when tightening the nuts on the
roller shafts.
NOTICE
New V-belts will often stretch after moder-
ate use. Check frequently after installation.
-32-
G9983 15" Open-End Wide-Belt Sander
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Platen Graphite
Air System
The graphite sheet on the platen will wear out
with use. Similar to the sanding belts, the graphite
sheet is considered a “consumable” item and is
not covered under the warranty. We recommend
keeping replacements in your inventory to avoid
downtime. To obtain replacements, use the part
number in the back of this manual for ordering.
The air system is durable and reliable; however,
components do wear with age. If you suspect that
an item in your air system may be having prob-
lems, use the diagram on page 38 to follow all
lines and connections, and use the instructions
below to investigate.
•
•
Carefully inspect all air lines for cracks, tears
or hardening. Replace faulty hoses.
To replace the graphite sheet:
1. Pull the platen from its bracket with the
Check the air connections for leaks. A small
amount of water in a questionable area will
bubble if there is a leak.
included platen puller tool.
2. Remove the screws and hold-down bar that
secure the graphite sheet to the platen.
•
Make sure lines are not clogged. Remove a
questionable line and blow through it as a
test.
3. Install the new graphite sheet exactly the
reverse as removal. Make sure that the
graphite sheet is wrapped in the same direc-
tion as the old one.
If you ever determine that a component in
the air system is malfunctioning, DO NOT
operate the sander. Fix the problem before
resuming operation.
G9983 15" Open-End Wide-Belt Sander
-33-
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Replacing Brakes
The only regular maintenance to perform on the
brakes is to keep the rotor clean. This is a simple
process and can be performed by spraying both
sides of the rotor with automotive brake parts
cleaner. The brake rotor must be free and clean
of any dust, dirt, oil or moisture.
Eventually the brake pads will wear out. Checking
and replacing these is a simple project that can
be done in the shop, with the exception of having
the rotor resurfaced.
Figure 33. Removing caliper to replace
To check the brake pads:
brake pads.
1. Disconnect the sander from the power
source and remove the air pressure com-
pletely.
4. The brake pads are secured to the caliper
with cap screws. One of these screws is eas-
ily accessible; the other can only be reached
by disassembling the brake caliper. Do this
and remove the cap screws to remove the
brake pads.
2. Remove the four screws that secure the
motor cover on the right-hand side of the
machine. This will allow you to access the
brake components.
5. Remove the brake rotor and have it profes-
sionally resurfaced. For this, find a local
machinist or auto supply store that regularly
resurfaces brake rotors for automobiles. If
visible cracks are present in the brake rotor,
replace with a new one. Clean the rotor with
automotive brake cleaner to remove any oil
or dirt. Handle with a dry rag and install
exactly the reverse of removal.
3. The brake pads consist of a metal plate with
a composite pad. With a fine ruler, measure
the thickness of the composite pad only. If
1
one of the pads is below ⁄8" (approx. 3mm),
replace both.
To replace the brake pads:
1. Disconnect the sander from the power
source and remove the air pressure com-
pletely.
6. Install new brake pads, mount the caliper
and reconnect the air line.
2. Remove the nuts from the two mounting
bolts. There are two snap rings on the
mounting pins behind the bracket. Remove
these.
3. Pull the mounting pins out of the caliper
bracket and remove the air line from the
caliper. The caliper should now be able to be
removed as in Figure 33.
-34-
G9983 15" Open-End Wide-Belt Sander
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Service Log
Service Performed
Date
Approximate Hours Of Use
G9983 15" Open-End Wide-Belt Sander
-35-
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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: Introduction.
data, parts diagrams/lists, a troubleshooting guide
and Warranty/Return information for your Model
G9983 Wide-belt 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
2: Introduction. The specifications, drawings, and
photographs illustrated in this manual represent
the Model G9983 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 Model G9983 was specifically designed
for sanding wood. DO NOT MODIFY
AND/OR USE THIS MACHINE FOR ANY
OTHER PURPOSE. Modifications or improp-
er use of this tool will void the warranty. If
you are confused about any aspect of this
machine, DO NOT use it until all your ques-
tions have been answered. Serious person-
al 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 G9983 Wide-belt
Sander. 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).
-36-
G9983 15" Open-End Wide-Belt Sander
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MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901
MODEL G9983
15" OPEN-END WIDE-BELT SANDER
Design Type ..................................................................................Floor Model - Open End
Overall Dimensions:
Height ..................................................................................................................613⁄4
"
Width ........................................................................................................................35"
Depth ....................................................................................................................321⁄2
"
Shipping Weight................................................................................................923 lbs.
Net Weight ........................................................................................................815 lbs.
Foot Print ......................................................................................................29 x 231⁄2
"
Crate Size................................................................................351⁄2" L x 37" W x 70" H
Capacities:
Maximum Board Width (in one pass) ......................................................................15"
Maximum Board Thickness ....................................................................................51⁄2
"
Minimum Board Length .......................................................................................... 12"
Surface Speed of Sanding Belt ....................................................................2050 FPM
Conveyor Feed Rate ..........................................................................13.1 & 16.4 FPM
Sanding Belt Size............................................................................................16" x 48"
Sanding Motor:
Horsepower............................................................................................................5 HP
Voltage ..................................................................................................................220V
Amps..........................................................................................................................30
RPM ......................................................................................................................1725
Phase ⁄ Cycle ..........................................................................................Single ⁄ 60 HZ
Power Transfer........................................................................................2 V-Belt Drive
Conveyor Motor:
Horsepower ..........................................................................................................1⁄4 HP
Voltage ..................................................................................................................220V
Amps ........................................................................................................................1.8
RPM ......................................................................................................................1725
Phase ⁄ Cycle ..........................................................................................Single ⁄ 60 HZ
Power Transfer ................................................................................Gear Box to Chain
General Construction:
Cabinet ..................................................................................................................Steel
Belt Drums ....................................................................................Rubber Infeed Drum
................................................................................................................Steel Outfeed
..............................................................................................Rubber Pressure Rollers
Features:
............................................................................................Independent Motor Control
............................................................................................Pneumatic Belt Tensioning
................................................................................................Pneumatic Belt Tracking
....................................................................................................................Load Meter
........................................................................................................Safety Shut-Off Bar
............................................................................................................Thickness Scale
......................................................................Disc Brake System for Emergency Stops
....................................................................................................................5" Dust Port
Specifications, while deemed accurate, are not guaranteed.
G9983 15" Open-End Wide-Belt Sander
-37-
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Air System
Various functions on the Model G9983 are con-
4. The valve (G) controls the air flow volume
that goes to the air eye fork (F), which con-
trols the belt oscillation return.
trolled through the air system. Since this is a com-
plex network of hoses and valves, please take
some time to familiarize yourself with each item
so you can better understand your machine dur-
ing adjustments.
5. The diaphragm (H) actuates the switching
valve (I) depending on whether air is coming
from the eye fork (F) or the pressure regula-
tor (A).
The illustration below follows the air travel
through the machine to familiarize you with how it
works. Match the letters in the text with those in
the illustration to learn more about each function.
6. Switching valve (I) actuates the diaphragm
(J), which controls oscillation arm (K), which
in turn, moves eccentric shaft (L), which
makes top roller (M) shift back and forth to
control belt movement during operation.
1. The air flows into the machine at the pres-
sure regulator (A). This should be adjusted to
75 PSI.
7. Valve (O) controls the speed at which the
2. The solenoid valve (C) controls the brake
caliper (B) when signaled by the emergency
stop switch or the limit switches.
belt moves back and forth.
8. Knob (N) allows you to rotate the eccentric
shaft (L) to balance the oscillation timing so it
takes the belt the same amount of time to
move in one direction as it moves in the other
direction.
3. The switching valve (E) controls the vertical
cylinder (D) which raises/lowers the top roller
(M) to tighten/loosen the sanding belt.
M
I
N
H
P
F
J
L
O
K
G
D
E
Air Inlet
A
B
C
F
This is an illustration of the air control system.
G9983 15" Open-End Wide-Belt Sander
-38-
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Model G9983
Wiring Diagram—Main Hook Up Panel
220 Volt Single-Phase
TO BRAKING
TO BELT &
SOLENOID VALVE STOP SWITCHES
TO FEED
MOTOR
12 13
3
3
5
5
U2
V2
220V POWER
TO MAIN MOTOR
R
S
T
U1
W1
V1
TO ELECTRICAL
SWITCH PANEL
2
3
5
6
8
9
10 11 14 15
1L1
3L2
5L3
1L1
3L2
5L3
13NC
1L1
3L2
5L3
13NC
CN-
11
CN-
11
CN-
25
2T1
4T2
6T3
2T1
4T2
6T3
14NC
2T1
4T2
6T3
14NC
RESET
1.9
RESET
29
1.7
26
1.5
23
1.3
FN1853-39
2.1
21
31
A(R.C.)
A(R.C.)
FN1853-39
2A FUSES
!
Disconnect power from machine
before performing any electrical
service. Failure to do this will result
in a shock hazard leading to injury
or death.
G9983 15" Open-End Wide-Belt Sander
-39-
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D
-40-
G9983 15" Open-End Wide-Belt Sander
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Model G9983
Wiring Diagram - 220 Volt Single Phase
MAIN MOTOR
1
4
5
6
Starting 250VAC
1
2
4
3
Capacitor 800MFD
Running 350VAC
Capacitor 50UF-U
BELT
LIMIT
SWITCH
1
2
4
3
1
2
FEED BELT MOTOR
1
5
3
EMERGENCY STOP
LIMIT SWITCH
4
2
6
1
4
2
3
SOLENOID
VALVE
W2
12 13
3
3
5
5
U2
V2
U1
W1
V1
!
Disconnect power from machine
before performing any electrical
service. Failure to do this will result
in a shock hazard leading to injury
or death.
G9983 15" Open-End Wide-Belt Sander
-41-
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G9983 Parts Breakdown
2
3
4
1
5
10
6
7
8
9
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
1
2
3
4
5
P9983001 TOOL BOX
6
7
8
9
PWR1719 COMBO WRENCH 17/19MM
PWR1113 COMBO WRENCH 11/13MM
PWR810 COMBO WRENCH 8/10MM
P9983009 ALLEN WRENCH SET (10)
PWR1214 COMBO WRENCH 12/14MM
P9983003 BOX WRENCH 30/37MM
P4000937 PHILLIPS SCREWDRIVER
P9983005 ACCESS DOOR HANDLE
10 P9983010 PLATEN TOOL
-42-
G9983 15" Open-End Wide-Belt Sander
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160
121
122
156
157
158
151
152
161
150
149
148
120
159
123
155
143
147
146
145
117
142
119
101
144
141
139 140
154
153
138
129
103
118
132
137
136
104
102
128
107
105
131
106
108
109
130
133
134
115
114
135
116
113
127
124
111
110
126
125
112
G9983 15" Open-End Wide-Belt Sander
-43-
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REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
101 P9983101 MACHINE BASE
102 P9983102 QUILL BASE
132 PSS09M SETSCREW M8-1.25 X 20
133 PW04M FLAT WASHER 10MM
103 PSB64M CAP SCREW M10-1.5 X 25
104 P9983104 LOCK WASHER 10MM
105 P9983105 LOCKING HANDLE
106 P9983106 WORM GEAR SHAFT
134 PSB62M CAP SCREW M10-1.5 X 12
135 P9983135 ADJUSTABLE SCREW
136 PW06M
137 PN09M
FLAT WASHER 12MM
HEX NUT M12-1.75
107 P51102
108 P6203
109 PR23M
BEARING 51102
BEARING 6203ZZ
INT RETAINING RING 40MM
138 P9983138 BRAKE PIN
139 PR47M
EXT RETAINING RING 13MM
140 PLW06M LOCK WASHER 10MM
110 P9983110 HANDWHEEL
111 PSB64M CAP SCREW M10-1.5 X 25MM
112 P9983112 HANDLE M10
113 P9983113 WORM GEAR
114 P9983114 BUSHING
141 PN02M
142 P9983142 BRAKE CALIPER
143 P9983143 BRAKE PAD
HEX NUT M10-1.5
144 PS14M
CAP SCREW M6-1.0 X 12
145 P9983145 SPRING
146 P9983146 BRAKE AXLE
147 P9983147 PLATE
115 P9983115 GEAR SHAFT
116 PR18M
EXT RETAINING RING 17MM
117 P9983117 QUILL
148 PS47M
PHLP HD SCR M6-1.0 X 25
118 P9983118 RACK
149 P9983149 DIAPHRAGM
150 P9983150 TOP COVER
119 PSB26M CAP SCREW M6-1.0 X 12
120 P9983120 CONVEYOR SUPPORT
121 PSB12M CAP SCREW M8-1.25 X 40
122 PLW04M LOCK WASHER 8MM
123 PSB12M CAP SCREW M8-1.25 X 40
124 P9983124 QUILL COVER
151 PS20M
PHLP HD SCR M5-.08 X 15
152 P9983152 PLASTIC CONNECTOR
153 PLW06M LOCK WASHER 10MM
154 PB01M
HEX BOLT M10-1.5 X 30
155 P9983155 SPINDLE MOTOR 5HP
156 P9983156 BRAKE ROTOR
125 PS14M
PHLP HD SCR M6-1.0 X 12
126 P9983126 FLAT WASHER 6MM
127 P9983127 MACHINE BASE COVER
157 PLW06M LOCK WASHER 10MM
158 PSB75M CAP SCREW M10-1.5 X 18
159 P9983159 MOTOR PULLEY
128 PS47M
PHLP HD SCR M6-1.0 X 25
129 P9983129 MOTOR BASE
130 P9983130 SETTING SHAFT
131 P9983131 LOCK BUSHING
160 PSS13M SETSCREW M10-1.5 X 12
161 PVA71
BELT A71
-44-
G9983 15" Open-End Wide-Belt Sander
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239
242
237
236
235
234
241
238
251
250
233
240
232
231
230
249
248
247
246
229
243
244
228
245
225
224
209
208
226
203
227
210
223
202
204
211
212
201
205
216
213
219
221
222
207
206
218
214
220
215
217
REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
201 P9983201 CONVEYOR SUPPORT
202 P9983202 ROLLER BRACKET LH
203 P9983203 ROLLER BRACKET RH
204 PLW04M LOCK WASHER 8MM
227 PB09M
228 P6204
229 PR25M
230 P9983230 MAIN ROLLER
231 PK67M KEY 8 X 7 X 15MM
232 P9983232 MOTOR PANEL
HEX BOLT M8-1.25 X 20
BEARING 6204ZZ
INT RETAINING RING 47MM
205 PB07M
HEX BOLT M8-1.25 X 25
206 PSB40M CAP SCREW M8-1.25 X 35
207 P9983207 BRASS ROLLER
208 PLW04M LOCK WASHER 8MM
233 P6205
234 PR11M
BEARING 6205ZZ
EXT RETAINING RING 25MM
209 PN03M
210 P9983210 LIMIT SWITCH BASE
211 PW03M
212 PS14M
213 P9983213 LIMIT SWITCH
214 PW05M
215 PS48M
216 PN04M
217 P9983217 E-BRAKE PANEL
218 PRP03M PIN 5 X 20MM
HEX NUT M8-1.25
235 P9983235 BEARING COVER
236 PSB74M CAP SCREW M6-1.0 X 18
237 P9983237 BUSHING
238 P9983238 CHAIN WHEEL 19T X 24T
239 PSS02M SETSCREW M6-1.0 X 6
240 P9983240 CHAIN 3⁄8" X 48PC
241 P9983241 ROLLER CHAIN COVER
242 PSB37M CAP SCREW M6-1.0 X 50
243 P9983243 FEED MOTOR 1⁄4 HP
244 PLW04M LOCK WASHER 8MM
FLAT WASHER 6MM
PHLP HD SCR M6-1.0 X 12
FLAT WASHER 4MM
PHLP HD SCR M4-.7 X 50
HEX NUT M4-.7
219 PR11M
220 P6305
221 P9983221 CONVEYOR AXLE
EXT RETAINING RING 25MM
BEARING 6305ZZ
245 PN03M
246 PW01M
247 PB26M
HEX NUT M8-1.25
FLAT WASHER 8MM
HEX BOLT M8-1.25 X 30
222 PSS39M SETSCREW M10-1.5 X 50
223 P9983223 CONVEYOR ROLLER
248 PLW04M LOCK WASHER 8MM
249 PB09M HEX BOLT M8-1.25 X 20
224 P9983224 CONVEYOR BELT 380 X 1600
225 P9983225 BEARING SEAT
250 P9983250 CHAIN WHEEL 12T, 14T
251 PSS02M SETSCREW M6-1.0 X 6
226 PLW04M LOCK WASHER 8MM
G9983 15" Open-End Wide-Belt Sander
-45-
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G9983
324
330
325
319
318
323
329
317
338
326
337
336
341
340
339
328
314
315
313
327
335
334
309
308
320
316
333
321
322
332
331
312
311
310
307
306
305
304
301
302
303
381
368
367
353
380
379
352
366
351
365
364
350
349
348
361
360
362
369
347
372
359
370
363
371
354
377
376
355
346
356
358
357
345
373
375
374
378
344
343
342
-46-
G9983 15" Open-End Wide-Belt Sander
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REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
301 P9983301 CONTACT ROLLER BASE
302 PLW06M LOCK WASHER 10MM
303 PSB72M CAP SCREW M10-1.5 X 30
304 P9983304 SWITCH PLATE
306 PLW06M LOCK WASHER 10MM
307 PSB72M CAP SCREW M10-1.5 X 30
308 P9983308 COVER
342 PR11M
343 PR25M
344 P6005
345 P9983345 CONTACT ROLLER
346 P9983346 ROLLER SHAFT
347 P9983347 SLEEVE
348 PR11M
349 PR25M
350 P6005
351 P9983351 SUPPORT ROLLER
352 P9983352 ROLLER SHAFT
EXT RETAINING RING 25MM
INT RETAINING RING 47MM
BEARING 6005ZZ
RETAINING RING S25
RETAINING RING R47
BEARING 6005ZZ
309 PS02M
310 PLW04M LOCK WASHER 8MM
311 PB07M HEX BOLT M8-1.25 X 25
312 P9983312 FORK
PHLP HD SCR M4-.07 X 12
313 PW03M
314 PS14M
FLAT WASHER 6MM
PHLP HD SCR M6-1.0 X 12
353 P9983353 BUSHING
354 P9983354 ROLLER BASE
315 P9983315 CYLINDER ROLLER FRAME
316 PSS04M SETSCREW M6-1.0 X 12
317 P9983317 SUPPORT TUBE
355 P9983355 MICROMETER BASE
356 PSB26M CAP SCREW M6-1.0 X 12
357 P9983357 MICROMETER
318 PLW04M LOCK WASHER 8MM
319 PSB76M CAP SCREW M8-1.25 X 18
320 P9983320 TOP ROLLER SUPPORT
321 PLW04M LOCK WASHER 8MM
322 PSS41M SETSCREW M8-1.25 X 18
323 P9983323 TOP ECCENTRIC FRAME
324 PSB26M CAP M6-1.0 X 12MM
325 P9983325 KNOB BOLT M8 X 55
326 P9983326 ECCENTRIC SHAFT
358 PSS04M SETSCREW M6-1.0 X 12
359 P9983359 MAIN WORM GEAR SHAFT
360 P9983360 CONNECTION COUPLING
361 PSS04M SETSCREW M6-1.0 X 12
362 P9983362 SUPP WORM GEAR SHAFT
363 P9983363 GRAPHITE BASE L
364 P9983364 GRAPHITE BASE R
365 P9983365 WORM GEAR
366 P9983366 GEAR BUSHING
327 PR11M
328 P6205
EXT RETAINING RING 25MM
BEARING 6205ZZ
367 PLW04M LOCK WASHER 8MM
368 PB03M
HEX BOLT M8-1.25 X 16
329 P9983329 TOP ROLLER
330 P9983330 TOP ROLLER SHAFT
331 P9983331 TOP COVER
332 P9983332 DIAPHRAGM
369 P9983369 VERT MICROMETER SCREW
370 P9983370 PLATEN (MALE)
371 PW01M
FLAT WASHER 8MM
372 PSB58M CAP SCREW M8-1.25 X 12
373 P9983373 PLATEN (FEMALE)
374 P9983374 CARBON GRAPHITE
375 P9983375 SET PLATE
333 PS14M
PHLP HD SCR M6-1.0 X 12
334 P9983334 PLATE
335 P9983335 SHAFT
336 P9983336 SPRING
337 P9983337 BOTTOM COVER
376 PW05M
377 PS02M
FLAT WASHER 4MM
PHLP HD SCR M4-.7 X 12
338 PS06M
339 PR05M
340 PN02M
PHLP HD SCR M5-.8 X 20
EXT RETAINING RING 15MM
HEX NUT M10-1.5
378 P9983378 LINING 30 X 415MM
379 PLW07M LOCK WASHER 20MM
380 PN17M
HEX NUT M20-1.5
341 P9983341 OSCILLATION SQUARE
381 P9983381 SANDING BELT 16"W X 48"
G9983 15" Open-End Wide-Belt Sander
-47-
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402
401
405
406
409
408
411
418
417
407
411
420
419
416
410
404
415
403
412
427
428
426
440
441
425
429
431
421
424
423
422
430
433
442
432
434
404
443
446
435
445
444
439
414
413
438
437
436
518
514
519
526
520
531
528
521
515
513
512
517
530
522
511
510
529
527
506
505
516
509
523
507
508
501
502
501
535
524
532
534
503
525
536
537
504
533
540
539
538
-48-
G9983 15" Open-End Wide-Belt Sander
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REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
401 P9983401 MACHINE FRAME
402 P9983402 ACCESS DOOR RH
403 P9983403 ACCESS DOOR LH
404 P9983404 LOCK
405 P9983405 OPERATING PANEL
406 P9983406 LOAD METER
407 P9983407 POWER INDICATOR
408 P9983408 START BUTTON
409 P9983409 STOP BUTTON
410 P9983410 EMERGENCY STOP BUTTON
445 P9983445 CONNECTOR 1⁄4
"
446 P9983446 PLASTIC CONNECT C6-1⁄4
501 P9983501 SWITCHING VALVE
"
502 PS12M
503 PS12M
PHLP HD SCR M3-.5 X 6
PHLP HD SCR M3-.5 X 6
504 P9983504 LIMIT SWITCH PANEL
505 P9983505 SILENCER 1⁄8
"
506 P9983506 PLASTIC CONNECT L6-1⁄8
507 P9983507 PLASTIC CONNECT C6-1⁄8
508 P9983508 SENSOR PIN
"
"
411 PS47M
PHLP HD SCR M6-1.0 X 25
509 P9983509 LIMIT SWITCH 8166
412 P9983412 PRESSURE ROLLER FRAME
413 PLW03M LOCK WASHER 6MM
414 PSB06M CAP SCREW M6-1.0 X 25
415 P9983415 TILTING ARM
416 PSS26M SETSCREW M5-08 X 6
417 P9983417 SPRING
510 PS50M
511 PS50M
PHLP HD SCR M3-.5 X 12
PHLP HD SCR M3-.5 X 12
512 P9983512 AIR VALVE 1⁄8
"
513 P9983513 PLASTIC CONNECT C6-1⁄8
514 P9983514 PLASTIC CONNECT L6-1⁄8
515 PS52M PHLP HD SCR M4-.7 X 20
"
"
418 P9983418 SPRING HOOK
516 P9983516 PLASTIC CONNECT 6Y
517 P9983517 PLASTIC CONNECT 6T
518 P9983518 PLASTIC CONNECT C6-1⁄8
419 PW01M
420 PN03M
FLAT WASHER 8MM
HEX NUT M8
"
421 P9983421 SET PIN
519 PN11
HEX NUT 3⁄8"-24
422 PR01M
EXT RETAINING RING 10MM
520 P9983520 AIR EYELET (OUT) 3⁄8
521 P9983521 BRASS NUT 3⁄8"-UNF
522 P9983522 BUSHING 10MM
"
423 P9983423 BEARING COVER
424 P6001
BEARING 6001ZZ
425 P9983425 PRESSURE ROLLER
426 P9983426 PRESSURE SHAFT
523 P9983523 PLASTIC CONNECT 1⁄8" X 3⁄8
"
524 P9983524 AIR VALVE 1⁄8
525 P9983525 PLASTIC CONNECT L6-1⁄8
526 P9983526 SOLENOID VALVE 1⁄8" X 220V
527 P9983527 PLASTIC CONNECT B6-1⁄8
528 P9983528 PLASTIC CONNECT L6-1⁄8
529 P9983529 SILENCER 1⁄8
530 P9983530 CONNECTOR
"
427 P9983427 SPECIAL NUT M8-1.25
428 PSS42M SETSCREW M8-1.25 X 50
429 P9983429 PLASTIC CONNECTOR L6-1⁄8
"
"
"
"
430 P9983430 SWITCHING VALVE 1⁄8
"
431 P9983431 SILENCER 1⁄8
"
"
432 P9983432 PLASTIC CONNECTOR C6-1⁄8
433 P9983433 LINING
"
531 PS25M
532 PN04M
PHLP HD SCR M4-.7 X 35
HEX NUT M4-.7
434 PS49M
436 PS02M
PHLP HD SCR M3-.5 X 5
PHLP HD SCR M4-.7 X 12
533 P9983533 PRESSURE GAUGE K-1000FR2
437 P9983437 TOP ALUMINUM COVER
534 P9983534 PLASTIC CONNECT L6-1⁄4
535 P9983535 AIR COCK 1⁄4" X 5⁄16"
"
438 PS06M
PHLP HD SCR M5-.8 X 20
439 P9983439 PLASTIC CONNECT M6 X 1⁄4
440 P9983440 PLATE
"
536 PW03M
537 PS14M
FLAT WASHER 6MM
PHLP HD SCR M6-1.0 X 12
441 P9983441 DIAPHRAGM
538 P9983538 TENSION CYLINDER 63 X 40ST
442 P9983442 BOTTOM ALUMINUM COVER
443 P9983443 PLASTIC CONNECT 1⁄8" X 1⁄8
444 P9983444 CUP 1⁄4
539 P9983539 PLASTIC CONNECT C6-1⁄8
540 P9983540 SILENCER 1⁄4
"
"
"
"
G9983 15" Open-End Wide-Belt Sander
-49-
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621
622
620
619
601
623
618
626
603
617
612
606
611
602
601
624
612
609
605
625
602
608
606-1
604-1
604
716
717
725*
724*
728*
711
723*
731
729*
706
712
710
730*
715
714
707
713
718*
720*
719*
704
703
702
701
721*
722*
726*
705
727
708
709
* Optional Parts
-50-
G9983 15" Open-End Wide-Belt Sander
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REF
PART #
DESCRIPTION
REF
PART #
DESCRIPTION
601 P9983601 CONTROL BOX
706 P9983706 SUPPORT LINING
602 P9983602 LOCK
707 PS11M
708 PW03M
709 PN01M
710 P9983710 RETRACTABLE ROD
711 PSS10M SETSCREW M10-1.5 X 20
712 PN02M
713 P9983713 ECCENTRIC SHAFT LH
714 PN27M HEX NUT LH M10-1.5
715 PLW06M LOCK WASHER 10MM
716 P9983716 ECCENTRIC SHAFT RH
717 PN02M
718 PSB62M CAP SCREW M10-1.5 X 12
719 PLW06M LOCK WASHER 10MM
PHLP HD SCR M6-1.0 X 16
FLAT WASHER 6MM
HEX NUT M6-1.0
603 P9983603 CONTROL PANEL
604 P9983604 CONTACTOR CN-25 SAND
604-1 P9983604-1 THERMAL RH 18/26
605 P9983605 CONTACTOR CN-11 MAIN
606 P9983606 CONTACTOR CN-11 FEED
606-1 P9983606-1 THERMAL RH 10E/1.7C
608 P9983608 CURRENT TRANSFORMER
609 P9983609 TERMINAL BOARD
611 P9983611 TERMINAL BOARD
612 P9983612 TERMINAL BOARD
617 P9983617 GROUND WIRE PANEL
618 P9983618 WIRE SLEEVE
HEX NUT M10-1.5
HEX NUT M10-1.5
619 P9983619 WIRE SLEEVE
620 P9983620 WIRE SLEEVE
621 P9983621 WIRE SLEEVE
720 PW04M
721 P9983721 INFEED TABLE FRAME
722 PR47M EXT RETAINING RING 13MM
FLAT WASHER 10MM
622 P9983622 WIRE SLEEVE
623 P9983623 WIRE SLEEVE
624 P9983624 WIRE CONNECTOR (IN)
723 P9983723 ROLLER BUSHING
724 P9983724 ROLLER SHAFT
725 P9983725 CONVEYOR ROLLER
726 PRP28M PIN 5 X 40MM
727 P9983727 EMERGENCY BRAKE PANEL
728 P9983728 KNOB
625 PS14M
626 PN01M
PHLP HD SCR M6-1.0 X 12
HEX NUT M6-1.0
701 P9983701 PLASTIC COVER
702 PN03M HEX NUT M8-1.25
703 PLW04M LOCK WASHER 8MM
704 PW01M FLAT WASHER 8MM
729 P9983729 BRAKE ROD
730 PR39M
EXT RETAINING RING 8MM
731 P9983731 SPRING
705 P9983705 TABLE SUPPORT
G9983 15" Open-End Wide-Belt Sander
-51-
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TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Motor will not start.
1. Low voltage.
1. Check power line for proper voltage.
2. Open circuit in motor or loose con- 2. Inspect all lead connections on motor for loose or open connections.
nections.
Motor will not start; fuses or 1. Short circuit in line cord or plug.
1. Inspect cord or plug for damaged insulation and shorted wires.
2. Short circuit in motor or loose con- 2. Inspect all connections on motor for loose or shorted terminals or
nections. worn insulation.
circuit breakers blow.
3. Incorrect fuses or circuit breakers 3. Install correct fuses or circuit breakers.
in power line.
Motor overheats.
1. Motor overloaded.
1. Reduce load on motor.
2. Air circulation through the motor 2. Clean out motor to provide normal air circulation.
restricted.
Motor stalls (resulting in 1. Short circuit in motor or loose con- 1. Inspect connections on motor for loose or shorted terminals or worn
blown fuses or tripped cir-
cuit).
nections.
2. Low voltage.
insulation.
Correct the low voltage conditions.
2
3. Incorrect fuses or circuit breakers 3. Install correct fuses or circuit breakers.
in power line.
4. Motor overloaded.
4. Reduce load on motor.
Machine slows when oper- 1. Feed rate too high.
ating. 2. Depth of cut too great.
1. Feed workpiece slower and watch load meter.
2. Reduce depth of cut and watch load meter.
Loud, repetitious noise com- 1. Pulley set screws or keys are miss- 1. Inspect keys and set screws. Replace or tighten if necessary.
ing from machine
ing or loose.
2. Tighten fan or shim cover.
2. Motor fan is hitting the cover.
3. V-belt is defective.
3. Replace V-belt. See Maintenance section.
Machine is loud, overheats 1. Excessive depth of cut.
or bogs down in the cut. 2. Dull sanding belt.
1. Decrease depth of cut.
2. Replace sanding belt.
Edges of wood are rounded. 1. Excessive depth of cut.
1. Reduce depth of cut.
Uneven thickness from left 1. Feed table not parallel to sanding 1. Adjust the table.
to right of board.
roller.
2. Feed belt is worn.
2. Replace feed belt.
Workpiece slips on feed 1. Pressure rollers set too high.
1. Lower pressure rollers.
2. Clean feed belt.
belt.
2. Dirty feed belt.
3. Feed belt is worn.
3. Replace feed belt.
Straight strip of notches on 1. Pressure rollers are dirty or dam- 1. Clean or repair pressure rollers.
workpiece. aged.
Snake shaped marks on 1. Sanding belt damaged or dirty.
workpiece.
1. Clean or replace sanding belt.
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.
-52-
G9983 15" Open-End Wide-Belt Sander
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TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Lines across width of work- 1. Sanding belt seam is open or dam- 1. Repair or replace sanding belt.
piece. aged.
More material is removed 1. Workpiece is not supported as it 1. Hold workpiece up with your hands as it comes out, or set up an out-
from the end of workpiece
than the length (snipe).
comes out of sander.
2. Pressure rollers not set correctly.
feed table for your workpiece after it comes out.
2. Set pressure rollers as described in Section 8: Service Adjustments.
Glossy spots or streaks on 1. Worn sanding belt.
1. Replace sanding belt.
workpiece.
2. Rear pressure roller too low.
2. Raise rear pressure roller. (See warning in Pressure Roller sec-
tion!)
Sanding belt clogs quickly.
1. Sanding belt grit too small for par- 1. Replace with a coarser grit sanding belt.
ticular job.
2. Excessive depth of cut.
3. Wood is too moist.
2. Reduce depth of cut.
3. Allow wood to dry out.
Sanding belt does not ten- 1. Low air pressure.
sion correctly; rollers slip 2. Air leaks in system.
under belt.
1. Adjust air pressure to 75 PSI at primary regulator.
2. Inspect all hoses and connections for leaking air; use water on sus-
pected area to detect bubbles.
Sanding belt runs off to one 1. Air eye fork clogged.
1. Clean the intake hole on the air eye fork.
2. Open valve.
side, stopping the sander.
2. Oscillation return valve closed.
3. Oscillation timing incorrect.
3. Adjust oscillation timing.
Sanding belt will not start.
1. Sanding belt is not tensioned.
2. Limit switches engaged.
3. Emergency stop plate engaged.
1. Tension sanding belt.
2. Center sanding belt so it is not touching the limit switches.
3. Make sure emergency stop switch is released.
Poor, non-aggressive sand- 1. Platen adjusted incorrectly, above 1. Adjust platen on the same plane as, or lower than, bottom surface
ing results.
bottom surface level of lower sand-
ing rollers.
level of lower rollers.
2. Sanding belt loaded with sawdust. 2. Clean sanding belt to unload sawdust.
3. Sanding belt worn out. 3. Replace sanding belt with a new one.
Conveyor belt not tracking 1. Conveyor rollers moved out of 1. Re-adjust conveyor rollers.
in center.
adjustment.
Conveyor belt slipping.
1. Conveyor rollers have incorrect 1. Adjust conveyor rollers to increase tension.
tension.
2. Conveyor rollers contaminated with 2. Clean conveyor rollers.
dirt or dust.
Emergency brake stops 1. Air pressure incorrect.
slow. 2. Air leak in system.
1. Adjust air pressure to 75 PSI.
2. Find and fix air leaks.
3. Brake rotor contaminated with oil. 3. Clean brake rotor with automotive brake parts cleaner.
4. Brake pads worn out.
4. Replace brake pads.
Grinding noise when brak- 1. Brakes severely worn out.
ing.
1. Replace brake pads, have rotor turned (possibly replaced).
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.
G9983 15" Open-End Wide-Belt Sander
-53-
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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.
-54-
G9983 15" Open-End Wide-Belt Sander
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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
___Wide-belt 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.
G9983 15" Open-End Wide-Belt Sander
-55-
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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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Grizzly® Is The Industry Leader!
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