Grizzly G0843P User Manual

MODEL G0843P

TM

POLAR BEAR SERIES

12" DOUBLE DISC SANDER

OWNER'S MANUAL

(For models manufactured since 11/17)

COPYRIGHT © MARCH, 2018 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.

#ES19293 PRINTED IN CHINA

V1. 0 3.18

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

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

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

Identification ................................................... 3

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

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

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

Additional Safety for Disc Sanders ................ 8

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

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

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

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

Inventory ...................................................... 12

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

Bench Mounting ........................................... 13

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

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

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

Operation Overview ..................................... 15

Replacing Sanding Discs ............................. 16

Sanding Operations ..................................... 17

SECTION 5: ACCESSORIES ......................... 18

SECTION 6: MAINTENANCE ......................... 20

Schedule ...................................................... 20

Cleaning & Protecting .................................. 20

SECTION 7: SERVICE ................................... 21

Troubleshooting ........................................... 21

Table Gap & Parallelism .............................. 23

Calibrating Miter Gauge ............................... 24

Calibrating Table Tilt .................................... 24

SECTION 8: WIRING ...................................... 25

Wiring Safety Instructions ............................ 25

Wiring Diagram ............................................ 26

Electrical Components ................................. 26

SECTION 9: PARTS ....................................... 27

Main ............................................................. 27

Main Parts List ............................................. 28

Labels & Cosmetics ..................................... 29

WARRANTY & RETURNS ............................. 33

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]

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.

INTRODUCTION

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

Manual Accuracy

made every effort to be exact with the

sometimes the machine

.

,

e post

manual updates for free

www.grizzly.com.

Manufacture Date and Serial Number

Manufacture Date

Serial Number

-2-

Model G0843P (Mfd. Since 11/17)

Identification

Become familiar with the names and locations of the controls and features shown below to better understand
the instructions in this manual.

Left

Table

Front

View

Locking

Table

Handle

Paddle Switch w/

Disabling Key

Scale

Pointers

Right

Sanding

Disc

Locking

Table

Handle

Right Sanding

Disc Guard

Right

Table

Miter

Gauge

Table

Slot

Rear
View

Left Sanding

Disc Guard

Left

Sanding

Disc

Table

Slot

2" Dust

Port

Locking Table

Handles

2" Dust

Port

For Your Own Safety Read Instruction Manual Before Operating Double Disc Sander

a) Wear eye and ear protection.
b) Support workpiece on table.
c) Maintain the smallest gap possible between the table and sanding disc.
d) Avoid kickback by sanding in accordance with directional arrows.

Model G0843P (Mfd. Since 11/17)

-3-

Machine Data Sheet

MACHINE DATA

SHEET

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

MODEL G0843P 12" DOUBLE DISC SANDER ‐ POLAR BEAR

SERIES

Product Dimensions:

Weight................................................................................................................................................................ 79 lbs.

Width (side-to-side) x Depth (front-to-back) x Height..................................................................... 29-1/2 x 16 x 16 in.

Footprint (Length x Width)............................................................................................................................ 25 x 16 in.

Shipping Dimensions:

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

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

Weight................................................................................................................................................................ 84 lbs.

Length x Width x Height....................................................................................................................... 26 x 19 x 18 in.

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

Electrical:

Power Requirement............................................................................................................ 110V, Single-Phase, 60Hz

Full-Load Current Rating.......................................................................................................................................... 7A

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

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

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

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

Power Cord Gauge......................................................................................................................................... 16 AWG

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

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

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

Motors:

Main

Horsepower............................................................................................................................................. 3/4 HP

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

Amps.............................................................................................................................................................. 7A

Speed................................................................................................................................................ 1720 RPM

Type.................................................................................................................. TEFC Run-Capacitor Induction

Power Transfer ............................................................................................................................... Direct Drive

Bearings........................................................................................................ Sealed & Permanently Lubricated

Main Specifications:

Disc Sander Info

Disc Diameter............................................................................................................................................ 12 in.

Disc Speed........................................................................................................................................ 1720 RPM

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

Table Length........................................................................................................................................ 15-1/2 in.

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

Table Thickness........................................................................................................................................ 5/8 in.

Table Tilt............................................................................................................................................. 0–45 deg.

Table-to-Floor Height........................................................................................................................... 9-5/16 in.

-4-

Model G0843P (Mfd. Since 11/17)

Construction Materials

Base........................................................................................................................................................... Steel

Table................................................................................................................................................... Aluminum

Frame......................................................................................................................................................... Steel

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

Miter Gauge........................................................................................................................................ Aluminum

Paint Type/Finish.................................................................................................................................... Enamel

Other Related Info

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

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

Number of Dust Ports....................................................................................................................................... 2

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

Other Specifications:

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

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

Approximate Assembly & Setup Time ........................................................................................................ 10 Minutes

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

Sound Rating ..................................................................................................................................................... 60 dB

Features:

Dual Sanding Discs
Dual 2-1/2" Dust Ports
Table Tilt Range 0 to 45 Deg.
Accepts 12" PSA Sanding Discs

Accessories Included:

Aluminum Miter Gauge
Open-End Wrench 7/8"
Open-End Wrench 8/10mm
Open-End Wrench 12/14mm
Phillips Screwdriver #1

Model G0843P (Mfd. Since 11/17)

-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 your 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 G0843P (Mfd. Since 11/17)

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 G0843P (Mfd. Since 11/17)

-7-

Additional Safety for Disc Sanders

Serious injury or death can occur from pinching fingers or hands between rotating sanding disc
and table, or getting clothes or hair getting entangled in sanding disc. Workpieces thrown by
sander can strike nearby operators with great force. Long-term respiratory damage can occur
from using sander without a respirator and adequate dust collection system. To minimize these
risks, anyone operating machine MUST completely heed hazards and warnings below.

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 sanding disc 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
sanding disc.

DISC DIRECTION. Only sand on downward­moving side of sanding disc with workpiece firmly
supported against table. Sanding on upward­moving side of sanding disc forces operator to
rely only on hands (rather than table) for support,
which increases risk of workpiece kickback, loss of
control, and impact/abrasion injuries. 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.

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 sanding disc using light
pressure.

1

⁄16" away from

HAND PLACEMENT. Rotating sanding discs can
quickly remove a large amount skin. Always keep
hands away from sanding disc during operation.
Never touch moving sanding disc on purpose.

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 sanding disc or sander. Never try to
sand stock that has embedded foreign objects or
questionable imperfections.

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

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.

SMALL WORKPIECES. Small workpieces are
difficult to control and require close support near
sanding surface. Always use a jig or other holding
device when sanding small workpieces, and keep
hands and fingers at least 2" away from sanding
surface.

-8-

DUST COLLECTION. Never operate without
adequate 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.

Model G0843P (Mfd. Since 11/17)

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.

or equipment damage
may occur if machine is
not properly grounded
and connected to 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:

process. DO NOT connect to power until

Availability

Electrocution, fire, shock,

Serious injury could occur if you connect
machine to power before completing setup

instructed later in this manual.

110V 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 110V ........7 Amps

Model G0843P (Mfd. Since 11/17)

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

-9-