Grizzly G0787 User Manual

MODEL G0787

4" x 36" HORIZONTAL/VERTICAL

BELT SANDER w/6" DISC

OWNER'S MANUAL

(For models manufactured since 09/14)

COPYRIGHT © FEBRUARY, 2015 BY GRIZZLY INDUSTRIAL, INC.

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

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

#WKBB17229 PRINTED IN CHINA

V1. 0 2.1 5

This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.

Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.

The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and compre­hension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.

The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.

Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:

• Lead from lead-based paints.

• Crystalline silica from bricks, cement and other masonry products.

• Arsenic and chromium from chemically-treated lumber.

Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equip­ment, such as those dust masks that are specially designed to filter
out microscopic particles.

Table of Contents

INTRODUCTION ............................................................................................................................... 2

Manual Accuracy ........................................................................................................................ 2

Contact Info ................................................................................................................................ 2

Controls & Components ............................................................................................................. 3

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

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

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

Additional Safety for Disc/Belt Sanders ..................................................................................... 8

SECTION 2: POWER SUPPLY ........................................................................................................ 9

SECTION 3: SETUP ....................................................................................................................... 11

Unpacking ................................................................................................................................ 11

Needed for Setup ..................................................................................................................... 11

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

Site Considerations .................................................................................................................. 12

Bench Mounting ....................................................................................................................... 12

Assembly .................................................................................................................................. 13

Dust Collection ......................................................................................................................... 14

Test Run ................................................................................................................................... 15

SECTION 4: OPERATIONS ........................................................................................................... 16

Disabling Switch ....................................................................................................................... 16

Disc Sanding ............................................................................................................................ 17

Belt Sanding ............................................................................................................................. 18

Changing/Replacing Sandpaper Disc ...................................................................................... 21

Changing/Replacing Sanding Belt ........................................................................................... 22

Adjusting Belt Tracking ............................................................................................................ 22

SECTION 5: ACCESSORIES ......................................................................................................... 23

SECTION 6: MAINTENANCE......................................................................................................... 25

Schedule .................................................................................................................................. 25

Cleaning & Protecting .............................................................................................................. 25

Cleaning Sanding Belt/Disc ...................................................................................................... 25

SECTION 7: SERVICE ................................................................................................................... 26

Troubleshooting ........................................................................................................................ 26

Aligning Work Table ................................................................................................................. 28

Calibrating Miter Gauge ........................................................................................................... 28

Replacing Drive Belt ................................................................................................................. 29

SECTION 8: WIRING ...................................................................................................................... 30

Wiring Safety Instructions ........................................................................................................ 30

Wiring Diagram......................................................................................................................... 31

SECTION 9: PARTS ....................................................................................................................... 32

Main Breakdown....................................................................................................................... 32

Labels & Cosmetics ................................................................................................................. 34

WARRANTY & RETURNS ............................................................................................................. 37

INTRODUCTION

We are proud to provide a high-quality owner’s
manual with your new machine!

We

instruc­tions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that

you receive is

slightly different than shown in the manual

If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something

check our

website for an updated version. W

current

manuals and

on our web-

site at

Alternatively, you can call our Technical Support
for help. Before calling, make sure you write down
the

from
the machine ID label (see below). This information
is required for us to provide proper tech support,
and it helps us determine if updated documenta­tion is available for your machine.

We stand behind our machines! If you have ques­tions or need help, contact us with the information
below. Before contacting, make sure you get the

serial number

from the

machine ID label. This will help us help you faster.

We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.

Email: [e-mail]

Manual Accuracy

made every effort to be exact with the

sometimes the machine

,

www.grizzly.com.

Manufacture Date and Serial Number

manual updates for free

e post

Contact Info

and manufacture date

Grizzly Technical Support

1815 W. Battlefield

.

Springfield, MO 65807
Phone: [phone]

Email: [e-mail]

Grizzly Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

Manufacture Date

Serial Number

-2-

Model G0787 (Mfd. Since 09/14)

Controls &

To reduce your risk of
serious injury, read this
entire manual BEFORE

Components

using machine.

H

G

I

L

K

J

Refer to Figures 1–2 and the following descrip­tions to become familiar with the basic controls of
this machine.

A

F

Figure 1. Sanding belt and controls, sanding

disc, and ON/OFF switch.

A. Belt Tensioning Lever: When pressed in,

provides tension to sanding belt during use.
When pulled out, releases tension for chang­ing/replacing belt.

B C

D

E

Figure 2. Work table and miter gauge controls,

sanding bed, and dust port.

G. Angle Scale: Indicates angle of work table

relative to sanding disc from 90 – 45°.

H. Sanding Bed: The surface around which the

sanding belt rotates; tilts from 0 – 90°.

I. Miter Gauge: Used for miter sanding.

Adjustable from 60° left – 60° right.

J. Work Table: Supports workpiece during

angle, miter, and compound miter sanding.
T-slot functions as a guide for miter gauge.

K. Angle Adjustment Knob: Tightens to secure

work table at desired angle.

1

L. 2

⁄2" Dust Port: Connects to dust collection

system (not included).

B. Backstop: Prevents workpiece from being

thrown by rotation of sanding belt.

C. Sanding Belt: Used for sanding with grain

along length of workpiece, and for sanding
inside curves.

D. Tracking Control Knob: Used to adjust

alignment of sanding belt to sanding bed.

E. ON/OFF Switch: Turns motor ON and OFF.

Remove yellow tab to lock in OFF position.

F. Sanding Disc: Used for performing angle

and miter sanding operations on work table.

Model G0787 (Mfd. Since 09/14)

-3-

Machine Data Sheet

MACHINE DATA

SHEET

Customer Service #: [phone] · To Order Call: [phone] · Fax #: [phone]

MODEL G0787 4" X 36" HORIZONTAL/VERTICAL BELT

SANDER WITH 6" DISC

Product Dimensions:

Weight................................................................................................................................................................ 38 lbs.

Width (side-to-side) x Depth (front-to-back) x Height............................................................... 17-1/2 x 14-1/2 x 24 in.

Footprint (Length x Width).............................................................................................................................. 6 x 15 in.

Shipping Dimensions:

Type..................................................................................................................................................... Cardboard Box

Content........................................................................................................................................................... Machine

Weight................................................................................................................................................................ 41 lbs.

Length x Width x Height....................................................................................................................... 23 x 12 x 13 in.

Must Ship Upright................................................................................................................................................... Yes

Electrical:

Power Requirement........................................................................................................... 120V, Single-Phase, 60 Hz

Full-Load Current Rating....................................................................................................................................... 4.3A

Minimum Circuit Size.............................................................................................................................................. 15A

Connection Type....................................................................................................................................... Cord & Plug

Power Cord Included.............................................................................................................................................. Yes

Power Cord Length................................................................................................................................................. 6 ft.

Power Cord Gauge......................................................................................................................................... 18 AWG

Plug Included.......................................................................................................................................................... Yes

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

Switch Type.................................................................................................. Toggle Safety Switch w/Removable Key

Motors:

Main

Type............................................................................................................................ Capacitor-Start Induction

Horsepower............................................................................................................................................. 1/2 HP

Phase............................................................................................................................................ Single-Phase

Amps........................................................................................................................................................... 4.3A

Speed................................................................................................................................................ 3600 RPM

Bearings.......................................................................................................................................... Ball Bearing

Main Specifications:

Belt Sander Info

Sanding Belt Width...................................................................................................................................... 4 in.

Sanding Belt Length.................................................................................................................................. 36 in.

Sanding Belt Speed........................................................................................................................... 1900 FPM

Sanding Belt Tilt..................................................................................................................................... 90 deg.

Max Height of Belt in Vertical Position................................................................................................. 24-1/2 in.

Belt Tension Release Type............................................................................................... Quick-Release Lever

Platen Type................................................................................................................................................ Steel

Platen Length............................................................................................................................................. 12 in.

Platen Width.......................................................................................................................................... 4-7/8 in.

-4-

Model G0787 (Mfd. Since 09/14)

Disc Sander Info

Disc Diameter.............................................................................................................................................. 6 in.

Disc Speed........................................................................................................................................ 3600 RPM

Disc Sandpaper Backing Type.................................................................................................................... PSA

Table Length.......................................................................................................................................... 6-1/4 in.

Table Width.................................................................................................................................................. 9 in.

Table Tilt............................................................................................................................ Left 0, Right 45 deg.

Table-to-Floor Height............................................................................................................................. 4-3/4 in.

Construction Materials

Base..................................................................................................................................................... Cast Iron

Table.................................................................................................................................... Die-Cast Aluminum

Frame................................................................................................................................................... Cast Iron

Disc..................................................................................................................................................... Aluminum

Miter Gauge............................................................................................................................. Plastic and Steel

Paint Type/Finish................................................................................................................................. Urethane

Other Related Info

Miter Gauge Slot Width............................................................................................................................. 5/8 in.

Miter Gauge Slot Height........................................................................................................................... 1/4 in.

Number of Dust Ports....................................................................................................................................... 1

Dust Port Size........................................................................................................................................ 2-1/2 in.

Other Specifications:

Country of Origin ............................................................................................................................................... China

Warranty ........................................................................................................................................................... 1 Year

Approximate Assembly & Setup Time ........................................................................................................ 30 Minutes

Serial Number Location .................................................................................................................................. ID Label

ISO 9001 Factory .................................................................................................................................................. Yes

Certified by a Nationally Recognized Testing Laboratory (NRTL) ......................................................................... Yes

Features:

Built-In dust port
Fast-tracking adjustment knob
Quick-release belt lever
Adjustable miter gauge

Model G0787 (Mfd. Since 09/14)

-5-

SECTION 1: SAFETY

For Your Own Safety, Read Instruction

Manual Before Operating This Machine

The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of impor­tance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.

Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.

This symbol is used to alert the user to useful information about

NOTICE

proper operation of the machine.

Safety Instructions for Machinery

OWNER’S MANUAL. Read and understand this

owner’s manual BEFORE using machine.

TRAINED OPERATORS ONLY. Untrained oper­ators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, dis­connect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make workshop kid proof!

DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.

MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machin­ery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.

ELECTRICAL EQUIPMENT INJURY RISKS. You
can be shocked, burned, or killed by touching live
electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.

DISCONNECT POWER FIRST.
nect machine from power supply BEFORE making
adjustments, changing tooling, or servicing machine.
This prevents an injury risk from unintended startup
or contact with live electrical components.

EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.

Always discon-

-6-

Model G0787 (Mfd. Since 09/14)

WEARING PROPER APPAREL. Do not wear
clothing, apparel or jewelry that can become
entangled in moving parts. Always tie back or
cover long hair. Wear non-slip footwear to reduce
risk of slipping and losing control or accidentally
contacting cutting tool or moving parts.

HAZARDOUS DUST. Dust created by machinery
operations may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece mate­rial. Always wear a NIOSH-approved respirator to
reduce your risk.

HEARING PROTECTION. Always wear hear­ing protection when operating or observing loud
machinery. Extended exposure to this noise
without hearing protection can cause permanent
hearing loss.

REMOVE ADJUSTING TOOLS. Tools left on
machinery can become dangerous projectiles
upon startup. Never leave chuck keys, wrenches,
or any other tools on machine. Always verify
removal before starting!

USE CORRECT TOOL FOR THE JOB. Only use
this tool for its intended purpose—do not force
it or an attachment to do a job for which it was
not designed. Never make unapproved modifica­tions—modifying tool or using it differently than
intended may result in malfunction or mechanical
failure that can lead to personal injury or death!

AWKWARD POSITIONS. Keep proper footing
and balance at all times when operating machine.
Do not overreach! Avoid awkward hand positions
that make workpiece control difficult or increase
the risk of accidental injury.

CHILDREN & BYSTANDERS. Keep children and
bystanders at a safe distance from the work area.
Stop using machine if they become a distraction.

GUARDS & COVERS. Guards and covers reduce
accidental contact with moving parts or flying
debris. Make sure they are properly installed,
undamaged, and working correctly BEFORE
operating machine.

FORCING MACHINERY. Do not force machine.
It will do the job safer and better at the rate for
which it was designed.

NEVER STAND ON MACHINE. Serious injury
may occur if machine is tipped or if the cutting
tool is unintentionally contacted.

STABLE MACHINE. Unexpected movement dur­ing operation greatly increases risk of injury or
loss of control. Before starting, verify machine is
stable and mobile base (if used) is locked.

USE RECOMMENDED ACCESSORIES. Consult
this owner’s manual or the manufacturer for rec­ommended accessories. Using improper acces­sories will increase the risk of serious injury.

UNATTENDED OPERATION. To reduce the
risk of accidental injury, turn machine OFF and
ensure all moving parts completely stop before
walking away. Never leave machine running
while unattended.

MAINTAIN WITH CARE. Follow all maintenance
instructions and lubrication schedules to keep
machine in good working condition. A machine
that is improperly maintained could malfunction,
leading to serious personal injury or death.

DAMAGED PARTS. Regularly inspect machine
for damaged, loose, or mis-adjusted parts—or
any condition that could affect safe operation.
Immediately repair/replace BEFORE operating
machine. For your own safety, DO NOT operate
machine with damaged parts!

MAINTAIN POWER CORDS. When disconnect­ing cord-connected machines from power, grab
and pull the plug—NOT the cord. Pulling the cord
may damage the wires inside. Do not handle
cord/plug with wet hands. Avoid cord damage by
keeping it away from heated surfaces, high traffic
areas, harsh chemicals, and wet/damp locations.

EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intend­ed operation, stop using the machine! Contact our
Technical Support at [phone].

Model G0787 (Mfd. Since 09/14)

-7-

Additional Safety for Disc/Belt Sanders

Serious injury can occur from fingers or hands contacting sandpaper, or from fingers, clothes,
or hair getting entangled in sanding disc or belt. Workpieces thrown by sander can strike nearby
operators. Long-term respiratory damage can occur from using sander without proper use of
a respirator and an adequate dust collection system. To minimize risk of getting hurt or killed,
anyone operating machine MUST completely heed hazards and warnings below.

DISC DIRECTION. Only sand on downward-mov-

ing left side of sanding disc. Sanding on upward­moving right side of sanding disc forces operator
to rely only on hands (rather than table) for sup­port, which increases risk of workpiece “kick-out”
and impact/abrasion injuries.

HAND PLACEMENT. Rotating sandpaper can
remove a large amount of flesh in a few seconds.
Always keep hands away from sandpaper during
operation. Never touch moving sandpaper on pur­pose. Use a brush to clean table of sawdust and
chips.

FEEDING WORKPIECE. Forcefully jamming work­piece into sanding surface could cause workpiece
to be aggressively grabbed and pull your hands
into sanding surface. Firmly grasp workpiece in
both hands and ease it into sandpaper using light
pressure.

MINIMUM STOCK DIMENSION. Small workpiec­es can be aggressively pulled from your hands.
Always use a jig or other holding device when
sanding small workpieces, and keep hands and
fingers at least 2” away from sanding surface.

AVOIDING ENTANGLEMENT. Becoming entan­gled in moving parts of this machine can cause
pinching and crushing injuries. To avoid these
hazards, DO NOT wear loose clothing, gloves, or
jewelry, and tie back long hair. Keep all guards in
place and secure.

IN-RUNNING NIP POINTS. The gap between
moving sandpaper and fixed table/support creates
a pinch point for fingers or workpieces; the larger
this gap is, the greater risk of fingers or workpieces
getting caught in it. Minimize this risk by adjusting
table no more than

1

⁄16 ” away from sandpaper.

WORKPIECE SUPPORT. Workpiece kickback
can occur with violent force if workpiece is not
properly supported during operation. Always sand
with workpiece firmly against table or another sup­port device.

WORKPIECE INSPECTION. Nails, staples, knots,
or other imperfections in workpiece can be dis­lodged and thrown from sander at high rate of
speed into operator or bystanders, or cause dam­age to sandpaper or sander. Never try to sand
stock that has embedded foreign objects or ques­tionable imperfections.

SANDPAPER CONDITION. Worn or damaged
sandpaper not only produces poor sanding results,
but could fly apart, aggressively grab workpiece,
and throw debris at the operator. Always inspect
sandpaper before operation and replace if worn or
damaged.

WORKPIECE INTEGRITY. Only sand solid work­pieces that can withstand power sanding forces.
Make sure shape of workpiece is properly support­ed on table; avoid sanding workpieces without flat
bottom surfaces unless some type of jig is used to
maintain support and control when sanding force
is applied.

SANDING DUST. Sanding creates large amounts
of dust and flying chips that can lead to eye injury
or respiratory illness. Reduce risk of these hazards
by wearing approved eye and respiratory protec­tion when using sander.

DUST COLLECTION. Never operate without ade-
quate dust collection system in place and running.
Proper dust collection reduces dust in work area,
which decreases risk of long-term respiratory dam­age, but it is not a substitute for using a respirator.

-8-

Model G0787 (Mfd. Since 09/14)

SECTION 2: POWER SUPPLY

Before installing the machine, consider the avail­ability and proximity of the required power supply
circuit. If an existing circuit does not meet the
requirements for this machine, a new circuit must
be installed. To minimize the risk of electrocution,
fire, or equipment damage, installation work and
electrical wiring must be done by an electrician or
qualified service personnel in accordance with all
applicable codes and standards.

Electrocution, fire, or
equipment damage may
occur if machine is not
correctly grounded and
connected to the power

The full-load current rating is the amperage a
machine draws at 100% of the rated output power.
On machines with multiple motors, this is the
amperage drawn by the largest motor or sum of all
motors and electrical devices that might operate
at one time during normal operations.

The full-load current is not the maximum amount
of amps that the machine will draw. If the machine
is overloaded, it will draw additional amps beyond
the full-load rating.

If the machine is overloaded for a sufficient length
of time, damage, overheating, or fire may result—
especially if connected to an undersized circuit.
To reduce the risk of these hazards, avoid over­loading the machine during operation and make
sure it is connected to a power supply circuit that
meets the specified circuit requirements.

For your own safety and protection of

Note: Circuit requirements in this manual apply to

a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, con­sult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.

A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power sup­ply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)

This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:

Availability

Serious injury could occur if you connect
machine to power before completing setup
process. DO NOT connect to power until
instructed later in this manual.

120V Circuit Requirements

Nominal Voltage .................... 110V, 115V, 120V

Cycle ..........................................................60 Hz

Phase ........................................... Single-Phase

Power Supply Circuit ......................... 15 Amps

supply.

Full-Load Current Rating

Full-Load Current Rating at 120V ....4.3 Amps

Model G0787 (Mfd. Since 09/14)

property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.

-9-

Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is nec­essary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.

Check with a qualified electrician or service per­sonnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, discon­nect it from power, and immediately replace it with
a new one.

We do not recommend using an extension cord
with this machine.
cord, only use it if absolutely necessary and only
on a temporary basis.

Extension cords cause voltage drop, which can
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).

Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:

Grounding & Plug Requirements

it will not fit the outlet, have a qualified
electrician install the proper outlet with a

This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.

This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!

GROUNDED

5-15 RECEPTACLE

Grounding Prong

5-15 PLUG

Extension Cords

If you must use an extension

Neutral Hot

Figure 3. Typical 5-15 plug and receptacle.

SHOCK HAZARD!
Two-prong outlets do not meet the grounding
requirements for this machine. Do not modify
or use an adapter on the plug provided—if

verified ground.

-10 -

Minimum Gauge Size ...........................16 AWG

Maximum Length (Shorter is Better).......50 ft.

Model G0787 (Mfd. Since 09/14)