Grizzly Grinder H7761 User Manual

MODEL H7761

2" x 27" BELT & 6" DISC

COMBO SANDER

OWNER'S MANUAL

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

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

#JK7658 PRINTED IN CHINA

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Table of Contents

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

Foreword .................................................................................................................................... 2

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

Machine Data Sheet................................................................................................................... 3

Identification ............................................................................................................................... 4

SECTION 1: SAFETY....................................................................................................................... 5

Safety Instructions for Machinery............................................................................................... 5

Additional Safety Instructions for Sanders................................................................................. 7

SECTION 2: CIRCUIT REQUIREMENTS ........................................................................................ 8

110V Operation.......................................................................................................................... 8

SECTION 3: SET UP........................................................................................................................ 9

Set Up Safety............................................................................................................................. 9

Unpacking .................................................................................................................................. 9

Inventory..................................................................................................................................... 9

Items Needed for Set Up ......................................................................................................... 10

Mounting................................................................................................................................... 10

Hardware Recognition Chart.................................................................................................... 11

Clean Up .................................................................................................................................. 12

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

Attaching Sanding Disc............................................................................................................ 13

Installing Disc Table................................................................................................................. 13

Aligning Table .......................................................................................................................... 14

Adjusting Miter Gauge.............................................................................................................. 14

Installing Sanding Belt.............................................................................................................. 15

Adjusting Sanding Belt Tracking.............................................................................................. 15

Installing Back Stop.................................................................................................................. 16

Installing Dust Collection Hose ................................................................................................ 16

SECTION 4: OPERATIONS ........................................................................................................... 17

General..................................................................................................................................... 17

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

Miter Sanding........................................................................................................................... 18

Angle Sanding.......................................................................................................................... 18

Belt Sanding............................................................................................................................. 19

SECTION 5: ACCESSORIES......................................................................................................... 20

SECTION 6: MAINTENANCE ........................................................................................................ 21

Maintenance Safety ................................................................................................................. 21

Schedule .................................................................................................................................. 21

Lubricating Sleeve Bearings .................................................................................................... 22

SECTION 7: SERVICE ................................................................................................................... 23

Troubleshooting........................................................................................................................ 23

Parts Breakdown...................................................................................................................... 24

Parts List .................................................................................................................................. 25

WARRANTY AND RETURNS........................................................................................................ 26

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H7761 2" x 27" Belt & 6" Disc Combo Sander

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INTRODUCTION

Foreword

Contact Info

We are proud to offer the Model H7761 2" x 27"

Belt & 6" Disc Combo Sander. This machine is

part of a growing Grizzly family of fine wood-

working machinery. When used according to

the guidelines set forth in this manual, you can

expect years of trouble-free, enjoyable operation

and proof of Grizzly’s commitment to customer

satisfaction.

If you have any comments regarding this manual,

please write to us at the address below:

Grizzly Industrial, Inc.

Technical Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

We are pleased to provide this manual with

the Model H7761. 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.

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

The specifications, drawings, and photographs

illustrated in this manual represent the Model

H7761 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 www.

grizzly.com. Any updates to your machine will be

reflected in these manuals as soon as they are

complete. Visit our site often to check for the lat-

est updates to this manual!

Phone: (570) 546-9663

Fax: (800) 438-5901

E-Mail: [email protected]

Web Site: http://www.grizzly.com

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MACHINE DATA

SHEET

Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901

MODEL H7761 COMBO BELT/DISC SANDER

Design Type ......................................................................... Bench Model

Overall Dimensions:

Height (w/Work Light Extended)...................................................19³⁄4

Width ............................................................................................18³⁄4

Depth............................................................................................11³⁄4

Shipping Weight ........................................................................ 30 lbs.

Net Weight................................................................................. 27 lbs.

Box Size ................................................... 16¹⁄2" L x 15³⁄4" W x 12¹⁄2" H

Footprint ..................................................................................6" x 8¹⁄2

Arbor.................................................................................................¹⁄2

Sanding Disc Size .............................................................................6"

Sanding Belt Size.....................................................................2" x 27"

Motor:

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

Horsepower ................................................................................. ¹⁄3 HP

Voltage/Phase ..................................................... 110V / Single-Phase

Amps .............................................................................................2.6A

Cycle / RPM ....................................................... 60 Hertz / 3450 RPM

Features:

.............................................................................................Tool Rests

..............................................................................Rocker-Type Switch

............................................................................... Flexible Work Light

............................................................................Convenient Tool Tray

...............................................................Included 80 Grit Sanding Belt

...............................................................Included 80 Grit Sanding disc

Specifications, while deemed accurate, are not guaranteed.

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Identification

A. Sanding Belt

B. Back Stop

C. 1¹/2" Dust Ports (disc port not shown)

D. Miter Gauge

E. Disc Sanding Table

F. Sanding Disc

G. Motor

H. Tracking Knob

Belt Tensioning Knob

J. Side Guard Knob

K. Back Stop Angle Knob

L. Table Angle Knobs (rear knob not shown)

M. Adjustable Work Light

N. ON/OFF Switch

O. Tool Storage

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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 which are intended to convey the level of

importance of the safety messages. The progression of symbols is described below. Remember

that safety messages by themselves do not eliminate danger and are not a substitute for proper

accident prevention measures.

Indicates an imminently hazardous situation which, if not avoided,

WILL result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,

COULD result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,

MAY result in minor or moderate injury. It may also be used to alert

against unsafe practices.

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

proper operation of the machine.

NOTICE

Safety Instructions for Machinery

1. READ THROUGH THE ENTIRE MANUAL

BEFORE STARTING MACHINERY.

Machinery presents serious injury hazards

to untrained users.

4. ALWAYS USE HEARING PROTECTION

WHEN OPERATING MACHINERY.

Machinery noise can cause permanent

hearing damage.

2. ALWAYS USE ANSI APPROVED

SAFETY GLASSES WHEN OPERATING

MACHINERY. Everyday eyeglasses only

have impact resistant lenses. They are

NOT safety glasses.

5. WEAR PROPER APPAREL. DO NOT

wear loose clothing, gloves, neckties, rings,

or jewelry which may get caught in moving

parts. Wear protective hair covering to con-

tain long hair and wear non-slip footwear.

3. ALWAYS WEAR AN ANSI APPROVED

RESPIRATOR WHEN OPERATING

MACHINERY THAT PRODUCES DUST.

Wood dust is a carcinogen and can cause

cancer and severe respiratory illnesses.

6. NEVER OPERATE MACHINERY WHEN

TIRED, OR UNDER THE INFLUENCE OF

DRUGS OR ALCOHOL. Be mentally alert

at all times when running machinery.

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H7761 2" x 27" Belt & 6" Disc Combo Sander

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Safety Instructions for Machinery

7. ONLY

ALLOW

TRAINED

AND

17. REMOVE ADJUSTING KEYS AND

WRENCHES. Make a habit of checking for

keys and adjusting wrenches before turn-

ing machinery ON.

PROPERLY SUPERVISED PERSONNEL

TO OPERATE MACHINERY. Make sure

operation instructions are safe and clearly

understood.

18. CHECKFORDAMAGEDPARTSBEFORE

USING MACHINERY. Check for binding

and alignment of parts, broken parts, part

mounting, loose bolts, and any other con-

ditions that may affect machine operation.

Repair or replace damaged parts.

8. KEEP CHILDREN AND VISITORS AWAY.

Keep all children and visitors a safe dis-

tance from the work area.

9. MAKE WORKSHOP CHILD PROOF. Use

padlocks, master switches, and remove

start switch keys.

19. USE RECOMMENDED ACCESSORIES.

Refer to the instruction manual for recom-

mended accessories. The use of improper

accessories may cause risk of injury.

10. NEVER LEAVE WHEN MACHINE IS

RUNNING. Turn power off and allow all

moving parts to come to a complete stop

before leaving machine unattended.

20. DO NOT FORCE MACHINERY. Work at

the speed for which the machine or acces-

sory was designed.

11. DO NOT USE IN DANGEROUS

ENVIRONMENTS. DO NOT use machin-

ery in damp, wet locations, or where any

flammable or noxious fumes may exist.

21. SECURE WORKPIECE. Use clamps or

a vise to hold the workpiece when practi-

cal. A secured workpiece protects your

hands and frees both hands to operate the

machine.

12. KEEP WORK AREA CLEAN AND WELL

LIT. Clutter and dark shadows may cause

accidents.

22. DO NOT OVERREACH. Keep proper foot-

13. USE A GROUNDED EXTENSION CORD

RATEDFORTHEMACHINEAMPERAGE.

Undersized cords overheat and lose power.

Replace extension cords if they become

damaged. DO NOT use extension cords

for 220V machinery.

ing and balance at all times.

23. MANY MACHINES WILL EJECT THE

WORKPIECETOWARDTHEOPERATOR.

Know and avoid conditions that cause the

workpiece to "kickback."

14. ALWAYS DISCONNECT FROM POWER

24. ALWAYS LOCK MOBILE BASES

(IF USED) BEFORE OPERATING

MACHINERY.

SOURCE

BEFORE

SERVICING

MACHINERY. Make sure switch is in OFF

position before reconnecting.

25. BE AWARE THAT CERTAIN MATERIALS

MAY CAUSE AN ALLERGIC REACTION

in people and animals, especially when

exposed to fine dust. Make sure you know

what type of dust you will be exposed to

and always wear an approved respirator.

15. MAINTAIN MACHINERY WITH CARE.

Keep blades sharp and clean for best and

safest performance. Follow instructions for

lubricating and changing accessories.

16. MAKE SURE GUARDS ARE IN PLACE

AND WORK CORRECTLY BEFORE

USING MACHINERY.

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Additional Safety Instructions for Sanders

1. RESPIRATOR AND SAFETY GLASSES.

Always wear a respirator and safety glass-

es while operating the machine. Dust and

chips are created when sanding. Some

debris will be ejected, becoming hazards to

the eyes and lungs.

8. FEEDING WORKPIECE. Firmly grasp the

workpiece in both hands and ease it into

the machine using light pressure. DO NOT

jam the workpiece into the machine during

operation. Feed the workpiece against the

direction of rotation. DO NOT sand tapered

or pointed stock with the point facing the

feed direction. Never sand more than one

piece of stock at a time.

2. DUST COLLECTION SYSTEM. It is safer

to operate the sander with an adequate

dust collection system in place and run-

ning.

9. UNATTENDED OPERATION. Never leave

the machine running unattended.

3. CLOTHING. DO NOT wear loose clothing

while operating this machine. Roll up or

button sleeves at the cuff.

10. REPLACING SANDPAPER. Replace

sanding paper when it becomes worn. DO

NOT operate the sander with damaged or

badly worn sandpaper.

4. HAND PROTECTION. DO NOT place

hands near, or in contact with, sanding belt

during operation. DO NOT allow fingers to

get pinched between the workpiece and

the table. This may pull the operator’s hand

into the machine and cause serious injury!

11. MAINTENANCE AND ADJUSTMENTS.

Perform machine inspections and main-

tenance service promptly when called for.

Disconnect power before performing main-

tenance or adjustments on the sander.

5. MINIMUM STOCK DIMENSIONS. Do not

flat sand any stock thinner than ¹⁄16" or nar-

12. EXPERIENCING DIFFICULTIES. Any

problem, with the exception of convey-

or belt tracking that is concerned with

any moving parts or accessories, must be

investigated and corrected with the power

disconnected, and after all moving parts

have come to a complete stop.

rower than ¹⁄8

6. INSPECTING WORKPIECES. Always

inspect workpiece for nails, staples, knots,

and other imperfections that could be dis-

lodged and thrown from the machine during

sanding operations.

7. SANDING METAL. DO NOT sand any kind

of metal, as this is an imminent fire hazard

and could lead to serious injury or death.

No list of safety guidelines can be complete.

Every shop environment is different. Always

consider safety first, as it applies to your

individual working conditions. Use this and

other machinery with caution and respect.

Failure to do so could result in serious per-

sonal injury, damage to equipment, or poor

work results.

Like all machines there is danger associ-

ated with the Model H7761. Accidents are

frequently caused by lack of familiarity or

failure to pay attention. Use this machine

with respect and caution to lessen the pos-

sibility of operator injury. If normal safety

precautions are overlooked or ignored, seri-

ous personal injury may occur.

-7-

H7761 2" x 27" Belt & 6" Disc Combo Sander

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SECTION 2: CIRCUIT REQUIREMENTS

110V Operation

Serious personal injury could occur if you

connect the machine to the power source

before you have completed the set up pro-

cess. DO NOT connect the machine to the

power source until instructed to do so.

Figure 1. Typical type 5-15 plug & receptacle.

Amperage Draw

The Model H7761 motor draws the following amps

under maximum load:

Motor Draw...........................................2.6 Amps

Circuit Recommendations

We recommend connecting this machine to a

dedicated circuit with a verified ground (Figure

1), using the circuit breaker size given below.

Never replace a circuit breaker with one of higher

amperage without consulting a qualiﬁed electri-

cian. If you are unsure about the wiring codes

in your area or you plan to connect your

machine to a shared circuit, you may create a

fire hazard—consult a qualified electrician to

reduce this risk.

This machine must have a ground prong in

the plug to help ensure that it is grounded.

DO NOT remove ground prong from plug

to fit into a two-pronged outlet! If the plug

will not fit the outlet, have the proper outlet

installed by a qualified electrician.

Circuit Breaker.......................................15 Amps

Plug/Receptacle Type

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

Extension Cords

We do not recommend the use of extension cords.

If you find it absolutely necessary:

Electrocution or fire could

result if this machine is

not grounded correctly or

if your electrical configu-

ration does not comply

with local and state codes.

Ensure compliance by

checking with a qualified

electrician!

•

Use at least a 16 gauge cord that does not

exceed 50 feet in length!

The extension cord must also contain a

ground wire and plug pin.

A qualified electrician MUST size cords over

50 feet long to prevent motor damage.

-8-

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SECTION 3: SET UP

Set Up Safety

Inventory

After all the parts have been removed from the

box, you should have the following items:

This machine presents

Inventory (Figure 2)

Qty

serious injury hazards

to untrained users. Read

through this entire manu-

al to become familiar with

the controls and opera-

tions before starting the

machine!

A. Sander Unit ................................................ 1

B. Disc Sanding Table .................................... 1

C. Miter Gauge................................................ 1

D. Back Stop................................................... 1

E. Sanding Table Angle Knobs M6-1.0 x 18... 2

F. Flat Washers 6mm ..................................... 2

G. Back Stop Adjustment Knob M5-0.8 x 9.... 1

H. Flat Washer 5mm....................................... 1

I. Hex Nut M5-0.8.......................................... 1

Wear safety glasses dur-

ing the entire set up pro-

cess!

Unpacking

The Model H7761 was carefully packed when it

left our warehouse. If you discover the machine

is damaged after you have signed for delivery,

please immediately call Customer Service at

(570) 546-9663 for advice.

Figure 2. Inventory.

Save the containers and all packing materials for

possible inspection by the carrier or its agent.

Otherwise, filing a freight claim can be difficult.

In the event that any nonproprietary parts are

missing (e.g. a nut or a washer), we would be

glad to replace them, or for the sake of expedi-

ency, replacements can be obtained at your local

hardware store.

When you are completely satisfied with the con-

dition of your shipment, you should inventory the

contents.

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To mount the grinder:

Items Needed for

Set Up

1. Find the best place in your shop to mount the

sander.

—Pick a spot on the workbench that will

allow enough room to move the size of an

anticipated workpiece around the sander.

The operator (and possibly bystanders)

should have enough room to stand out of

the way.

The following items are needed to complete the

set up process, but are not included with your

machine:

Description

Qty

Wrench 8mm..................................................... 1

Wrench 13mm................................................... 1

Hex Bolt M8-1.25 (length varies)....................... 2

Flat Washer 8mm.............................................. 4

Lock Washer 8mm ............................................ 2

Hex Nut M8-1.25 ............................................... 2

—Mount the sander in an area with proper

lighting and near electrical outlets. Lighting

should be bright enough to eliminate shad-

ow and prevent eye strain. Electrical cir-

cuits should be dedicated or large enough

to handle amperage requirements.

Mounting

Note: Keep power or extension cords clear

of high-traffic areas. If you install new light-

ing, outlets, or circuits, observe all electrical

codes.

The Model H7761 weighs 22 lbs. Make sure

the workbench on which you plan to mount the

sander is sturdy enough to hold the weight of the

machine and any downward pressure that may be

applied during operation. The workbench should

have a level surface and be heavy, or attached to

the floor so that it will not move during operation.

2. Mount the sander to the workbench with

bolts that are long enough to exceed the

thickness of your workbench and the sander

base. Secure each bolt with flat washers, a

lock washer, and a hex nut as in Figure 3.

Components and Hardware Required

Qty

Note: Because sizes vary for each individual

situation, the hardware in this step is not

included with the Model H7761.

Sander Unit ....................................................... 1

Hex Bolt M8-1.25 (length varies)....................... 2

Flat Washer 8mm.............................................. 4

Lock Washer 8mm ............................................ 2

Hex Nut M8-1.25 ............................................... 2

H7761

Base

Bolt

The Model H7761 can cause

personal injury if operated

by untrained users. Ensure

that your machine is inac-

cessible to children and visi-

tors by closing and locking

all entrances to your shop/

garage when you are away.

Flat

Washer

Workbench

Flat

Washer

Lock

Washer

Nut

Figure 3. Mounting machine to the workbench.

NOTICE

When mounted, the storage tray can be eas-

ily damaged if the grinder is tipped forward.

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Hardware Recognition Chart

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Clean Up

Site Considerations

Weight Load

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, such as acetone or brake

parts cleaner, as they may damage painted sur-

faces should they come in contact. Always follow

the manufacturer’s instructions when using any

type of cleaning product.

The Model H7761 Combo Sander is a moderate

weight load with a small footprint. Most tables

and workbenches should be sufficient to carry

the weight of the machine. Reinforce the table or

workbench if you question its ability to support the

added weight.

Working Clearance

Working clearances can be thought of as the

distances between machines and obstacles that

allow safe operation of every machine with-

out limitation. Consider existing and anticipated

machine needs, size of material to be processed

through each machine, and space for auxiliary

stands or work tables. Also consider the relative

position of each machine to one another for effi-

cient material handling.

Gasoline and petroleum

products have low flash

points and could cause

an explosion or fire if

used to clean machinery.

DO NOT use gasoline or

petroleum products to

clean the machinery.

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

the amperage draw. Outlets should be located

near each machine so power or extension cords

are clear of high-traffic areas. Observe local elec-

trical codes for proper installation of new lighting,

outlets, or circuits.

Many of the solvents

commonly used to clean

machinery can be toxic

when inhaled or ingest-

ed. Lack of ventilation

while using these sol-

vents could cause seri-

ous personal health risks

or fire. Take precautions

from this hazard by only

using cleaning solvents

in a well ventilated area.

Unsupervisedchildrenand

visitors inside your shop

could receive serious per-

sonal injury. Ensure child

and visitor safety by keep-

ing all entrances to the

shop locked at all times.

DO NOT allow unsuper-

vised children or visitors

in the shop at any time.

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Attaching Sanding

Disc

Installing Disc Table

Components and Hardware Needed:

Qty

Sanding Disc Table ........................................... 1

Table Knobs ...................................................... 2

Flat Washer 6mm.............................................. 2

The Model H7761 Combo Sander accepts 6"

diameter cloth or paper-backed pressure sensi-

tive adhesive (PSA) sanding discs. These are

available in the current Grizzly catalog in a variety

of grits.

To install the disc table:

1. Attach the table as shown in Figure 4 with

the included knobs and washers.

The PSA sanding disc sticks directly to the sur-

face of the aluminum disc and can be replaced

with little effort. Often if the disc is still warm from

sanding, the adhesive will be soft enough that the

disc will come off very easily.

Flat

Washer

Components and Hardware Needed:

Qty

6" PSA disc sandpaper ..................................... 1

To attach sandpaper:

1. DISCONNECT THE MACHINE FROM THE

POWER SOURCE!

Table

Knob

2. Remove the disc table.

3. Remove the worn out sandpaper by slowly

Figure 4. Installing disc table.

peeling it from the aluminum disc.

2. Using a machinist’s square, set one edge on

the table surface and the other against the

face of the disc as shown in Figure 5.

4. If necessary, clean the aluminum disc with a

light application of a non-oil, non-flammable

solvent to remove any adhesive residue.

Make sure the aluminum disc is thoroughly

clean of all substances, including the sol-

vent, before applying a new sanding disc.

5. Peel back the protective layer on one-half

of the sandpaper disc and fold it against the

remaining half.

6. Center the sticky half of the sandpaper on

the upper half of the disc and press the sand-

paper onto the surface.

7. Remove the remainder of the protective layer

and then press the paper against the disc.

8. Rotate the disc by hand and make sure the

Figure 5. Squaring disc table.

sandpaper is firmly attached to the disc.

9. Reattach the disc table as outlined on this

page.

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3. Loosen the angle knobs and adjust the table

angle until there is no gap between the disc

face and the square.

Adjusting Miter Gauge

The miter gauge needs to be adjusted perpendic-

ular to the face of the wheel when it is mounted

in the table slot.

4. Tighten the angle knobs while holding the

table perpendicular.

To adjust miter gauge:

Aligning Table

1. DISCONNECT THE MACHINE FROM THE

POWER SOURCE!

The table must be aligned to the face of the

sanding disc so that the sandpaper does not rub

against the table.

2. Use a machinist square with one edge

against the face of the miter gauge and

the other against the disc face as shown in

Figure 7.

To align the table:

1. DISCONNECT THE MACHINE FROM THE

POWER SOURCE!

2. Loosen the knobs that secure the table to the

sanding unit.

3. Adjust the table so that there is ³⁄64" or 1 mm

between the table and the sanding disc as

shown in Figure 6.

Figure 7. Squaring the miter gauge.

3. Loosen the lock knob on the miter gauge to

adjust it flush with the edge of the square.

4. Tighten the lock knob and verify the setting.

³⁄64" Gap

Note: Sometimes the tightening procedure

can affect the adjustment.

Figure 6. The gap between the table and the disc.

4. Tighten the knobs loosened in Step 2.

5. Loosen the screw that secures the angle

pointer and adjust the pointer to the 0˚ mark

on the scale.

6. Re-tighten the screw that secures the angle

5. Spin the disc by hand to check if the sandpa-

pointer.

per is touching the table.

6. Repeat Steps 2-4 if the sandpaper touches

the table at any point in the rotation.

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Installing Sanding

Belt

Adjusting Sanding

Belt Tracking

To install the sanding belt:

1. Initially loosen the belt tension by loosening

the tensioning knob, and if necessary, by

loosening the tracking knob.

Before starting the sander, perform the

preceding assembly and adjustment

instructions, and read through the rest of

the manual and to become familiar with

the various functions and safety issues

associated with this machine. Failure to

follow this warning could result in serious

personal injury.

2. Remove the side guard by unscrewing the

side guard knob completely.

Note: To provide further access to the lower

drive wheel, it is also possible to remove the

front belt guard.

Once the sanding belt is installed, test the belt

tracking to see if the belt slides off the drum.

3. Slide the belt onto the drive drums as shown

in Figure 9 and tighten both the tensioning

knob and the tracking knob. The tensioning

knob should be completely tightened.

To test the tracking:

1. Remove all tools from the sander.

4. Test the belt tension by lightly pressing on it.

The belt should give some resistance before

it touches the belt support.

2. Plug the sander into the power source. Turn

the sander ON and then immediately OFF.

3. If the sanding belt moves toward the disc,

turn the tracking knob shown in Figure 10

towards the rear of the sander ¹⁄2 turn.

Tracking

Knob

Belt

Tensioning

Knob

Figure 9. Installing belt.

Note: Make sure that the arrow on the inside of

the sanding belt points the same direction as the

belt rotation arrow on the machine.

Tracking Knob

Figure 10. Sanding belt tracking knob.

4. If the sanding belt moves away from the disc,

turn the tracking knob towards the front of

the sander ¹⁄2 turn.

-15-

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5. Turn the sander ON and then immediately

OFF. The belt is tracking properly if it stays

centered on the drive drums. If the belt

moves to the side, return to Step 3.

Installing Dust

Collection Hose

Note: Listen for any unusual noises, vibra-

tions or rubbing while adjusting the tracking.

If anything sounds unusual, stop the sander

immediately. Disconnect the machine from

the power source and find the source of the

problem before operating further. If you can-

not locate the source of an unusual noise or

vibration, feel free to contact our Technical

Support department for help.

The dust ports are located behind both the sand-

ing belt and the sanding disc. Each opening is

1 ⁄2" in diameter and can be connected to a utility

vacuum or a dust collector.

To connect a dust port to a dust collection

system:

1. Place a hose clamp over the dust hose.

2. Slide the hose over the dust port.

Installing Back Stop

3. Secure the hose airtight with the hose

clamp.

To install the back stop:

4. Check the hose with a light tug to ensure it is

secure.

1. Ensure that the belt is tracking evenly and

properly, as outlined on Page 13.

2. Attach the back stop with the knob, washer

and hex nut as shown in Figure 8.

Figure 8. Squaring the back stop

3. Square the back stop as shown in Figure 8 and

tighten the back stop knob.

-16-

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SECTION 4: OPERATIONS

General

Disc Sanding

This section covers basic sanding operations.

Please read the remaining portion of the manual

before attempting any type of operation.

Always keep the workpiece on the side

of the wheel that is rotating down toward

the table. This will keep the workpiece

from flying out of your hands due to the

rotational forces.

Your safety is important! Please follow the

warnings below during this entire section:

To perform disc sanding operations:

Keep loose clothing

rolled up and out of the

way of machinery and

keep hair pulled back.

1. Set the angle of the table relative to the

sanding disc. The angle can be set with the

angle scale on the sides of the sanding table

or with a protractor for greater accuracy.

2. When a 90˚ horizontal angle is required,

place one surface of the workpiece firmly

against the face of the miter gauge (set at

0˚), with the other surface against the face of

the disc (Figure 11).

Using this machine pro-

duces dust which may

cause allergic reactions

and respiratory prob-

lems. Protect yourself by

wearing safety glasses

and a respirator dur-

ing the entire operation

process. DO NOT wear

gloves while operating

this machine as they can

be caught in the rotating

surfaces and become

entangled. Failure to

comply with this warn-

ing may result in serious

personal injury.

Figure 11. Disc sanding.

Operating this equipment has the poten-

tial to propel debris into the air which can

cause eye injury. Always wear safety glass-

es or goggles when operating equipment.

Everyday glasses only have impact resis-

tant lenses — they are not safety glasses.

Be sure the safety glasses you wear meet

the standards of the American National

Standards Institute (ANSI).

3. Using light pressure, move the workpiece

slowly back and forth to the center of the disc

to prevent the workpiece from burning and

to prevent excessive loading of the sanding

disc.

-17-

H7761 2" x 27" Belt & 6" Disc Combo Sander

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Miter Sanding

Angle Sanding

The most efficient way to get a perfect miter is to

cut the workpiece slightly long and sand it to the

desired dimension. Miter sanding can be done

easily with the miter gauge.

Always keep the workpiece on the side

of the wheel that is rotating down toward

the table. This will keep the workpiece

from flying out of your hands from the

rotational forces.

To perform miter sanding operations:

1. Loosen the knob on the miter gauge, adjust

the angle to the desired point, and tighten the

knob.

Miters can also be sanded by changing the angle

of the table.

2. Slide the miter gauge into its slot and use it

To perform angle sanding operations:

to hold your workpiece in position.

1. Loosen the angle knobs securing the table.

Note: The miter gauge can be used in either

direction in the slot to achieve the proper

relation of the workpiece to the disc.

2. Use the angle gauge to acheive the desired

table angle and tighten the angle knobs.

3. Using light pressure, move the workpiece

slowly back and forth across the disc as

shown in Figure 12.

Note: The disc table can be positioned from

0˚ to 45˚, relative to the plane of the sanding

surface.

3. Slide the miter gauge into the miter slot and

use the miter gauge to hold your workpiece

in position.

4. Using light pressure, push the workpiece

slowly into the downspin side of the rotating

disc (Figure 13).

Figure 12. Disc sanding with a miter gauge.

Never use the Model H7761 for applica-

tions other than those for which it was

made. DO NOT overload the machine or

use excess force when sanding. Severe

personal injury, damage to the machine, or

damage to your workpiece could occur.

Figure 13. Mitering with the table angled.

5. Move the workpiece slowly back and forth

across the downspin side of the disc.

-18-

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Belt Sanding

Belt sanding allows you to sand the flat surface

of a workpiece.

To perform belt sanding operations:

1. Turn the power ON and allow the sander to

reach full speed.

2. Place the workpiece against the surface of

the sanding belt. Hold the workpiece firmly

with both hands but keep fingers away from

the sanding surface as shown in Figure 14.

Figure 14. Belt sanding.

3. Move the workpiece across the surface of

the belt for even belt wear.

Neversandtheshortsideofanyworkpiece

with the belt sander. This carries a high

risk of kickback and serious personal

injury!

4. Use the back stop to prevent the workpiece

from being thrown off by the rotation of the

sanding belt.

-19-

H7761 2" x 27" Belt & 6" Disc Combo Sander

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SECTION 5: ACCESSORIES

G7984—Face Shield

PRO-STIK^®Belt Cleaners

G1511—Large (1¹/2" x 1¹/2" x 8¹/2")

G1512—Small (2" x 2" x 12")

H1298—Dust Sealed Safety Glasses

H1300—UV Blocking, Clear Safety Glasses

H2347—Uvex^®Spitfire Safety Glasses

H0736—Shop Fox^®Safety Glasses

H1446—1³/8" x 4¹/4

H1447—1³/8" x 8¹/2

Safety Glasses are essential to every shop. If

you already have a pair, buy extras for visitors

or employees. You can't be too careful when it

comes to shop safety!

These crepe-rubber Belt Cleaners quickly remove

gum and grit from belts and discs without dam-

age. Extend the life of your belts or discs with this

innovative natural cleaner.

H1300

H1298

G7984

H0736

H2347

Figure 2. PRO-STIK^®Belt Cleaners.

Figure 1. Our most popular safety glasses.

2" x 27" Silicon Carbide Sanding Belts

Our silicon carbide sanding belts are available in

packs of ten.

Aluminum Oxide Sanding Discs

Our aluminum oxide sanding discs are manufac-

tured in ISO 9002 factories to ensure the highest

quality. Available in packs of three.

MODEL

H5016

H5017

H5018

H5019

H5020

H5021

H5022

SIZE

GRIT

MODEL

G1445

G4236

G1446

G4237

G1447

G4238

G4239

TYPE

6" PSA

GRIT

2" x 27"

100

120

150

180

220

100

120

150

180

220

-20-

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SECTION 6: MAINTENANCE

Maintenance Safety

Schedule

Your safety is important! Please follow the

warnings below during this entire section:

Before Each Use:

•

Tighten back stop, table or guard knobs.

•

Replace any worn or damaged sanding discs

or belts.

Serious personal injury

could occur if you con-

nect your machine to

the power source dur-

ing the maintenance pro-

cess. DO NOT connect

the machine to the power

source while performing

any maintenance on this

machine.

•

Check for worn or damaged wires.

Check for any other condition that could

hamper the safe operation of this machine.

After Each Use:

•

Turn OFF machine.

•

Wipe off the sawdust build-up from the table

surface.

Weekly Maintenance:

•

Loose hair and cloth-

ing could get caught in

machinery and cause

serious personal inju-

ry. Keep loose clothing

rolled up and long hair

tied up and away from

machinery.

Wipe a lubricant such as SLIPIT^®onto the

table.

Long-Term Storage:

•

Keep unpainted surfaces rust free with prod-

ucts such as Boeshield^®T-9.

Projectiles from the

machine could cause

serious eye injury.

Wear safety glasses at

all times.

-21-

H7761 2" x 27" Belt & 6" Disc Combo Sander

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Lubricating Sleeve

Bearings

Lubricate the sleeve bearing with 30 WT oil every

10 hours of operation. No other lubrication is nec-

essary for this machine.

To lubricate the sleeve bearings:

1. DISCONNECT THE MACHINE FROM THE

POWER SOURCE!

2. Remove the sanding belt.

3. Apply two or three drops of oil in the hole at

the end of the idler pulley (Figure 15).

4. Wipe of any residual oil.

Note: DO NOT apply extra oil. Too much oil

can cause the belt to slip.

Figure 15. Lubricating the sleeve bearings.

-22-

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SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you

need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support

at (570) 546-9663.

Troubleshooting

SYMPTOM

Motor will not 1. Low voltage.

start. 2. Open circuit in motor or loose connections.

POSSIBLE CAUSE

CORRECTIVE ACTION

1. Check power line voltage and correct if necessary.

2. Inspect all connections on motor for loose or open

connections.

Motor will not 1. Loose connections or short circuit in line cord, 1. Inspect cord, plug and motor for damaged insula-

start; fuses/circuit

breakers blow.

plug, or motor.

tion, shorted wires or loose terminals.

2. Incorrect fuses or circuit breakers in power line. 2. Install correct fuses or circuit breakers.

Motor

stalls 1. Motor overloaded. 1. Reduce load on motor.

(resulting

in 2. Short circuit in motor or loose connections.

2. Inspect connections on motor for loose or shorted

terminals or worn insulation.

blown fuses or

tripped circuit).

3. Low voltage.

3. Check power line voltage and correct if necessary.

4. Incorrect fuses or circuit breakers in power line. 4. Install correct fuses or circuit breakers.

Machine slows 1. Workpiece pressure is too great.

when operating.

1. Reduce workpiece pressure on wheel.

Machine vibrates 1. Machine not mounted securely.

1. Secure machine to benchtop or stand.

2. Follow belt tracking instructions on Page 15.

3. Replace spring.

excessively.

2. Incorrect sanding belt tracking.

3. Weak or broken tension spring.

4. Broken/defective sanding belt.

4. Replace sanding belt.

5. Sanding disc rubbing or not centered properly.

5. Adjust sanding table to prevent disc contact.

Sanded surface 1. Table not perpendicular to disc.

not square. 2. Miter gauge not square to disc.

Deep sanding 1. Sandpaper damaged or clogged.

grooves or scars 1. Sandpaper too coarse for the desired finish.

1. Adjust table tilt.

2. Adjust miter gauge.

1. Clean and/or replace sanding surface.

1. Use a finer grit sanding belt or disc.

2. Sand with the grain.

in workpiece.

2. Workpiece sanded across the grain.

3. Too much sanding force on workpiece.

4. Workpiece held still against the belt or disc.

3. Reduce pressure on workpiece while sanding.

4. Keep workpiece moving while sanding.

Grains rub off the 1. Sanding belt or disc has been stored in an incor- 1. Store sanding belt or disc away from damp condi-

belt or disc eas-

ily.

rect environment.

tions.

2. Sanding belt or disc has been damaged.

2. Store sanding belt or disc flat, not folded or bent.

Sanding surfaces 1. Too much pressure against belt or disc.

1. Reduce pressure on workpiece while sanding.

2. Use different stock or plan on cleaning/replacing

belts frequently.

clog quickly or 2. Sanding softwood.

burn.

Burn marks on 1. Using too fine of sanding grit.

1. Use a coarser grit sanding belt or disc.

workpiece.

2. Using too much pressure.

3. Work held still for too long.

2. Reduce pressure on workpiece while sanding.

3. Do not keep workpiece in one place for too long.

Glazed sanding 1. Sanding wet stock.

1. Dry stock properly before sanding.

2. Use different stock or plan on cleaning/replacing

belts/discs frequently.

surfaces.

2. Sanding stock with high residue.

Workpiece kick- 1. Not supporting the workpiece against the stop.

back or vibration. 2. Starting the workpiece on a leading corner.

1. Use back stop to support workpiece.

2. Start workpiece on a trailing corner.

-23-

H7761 2" x 27" Belt & 6" Disc Combo Sander

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Parts Breakdown

-24-

H7761 2" x 27" Belt & 6" Disc Combo Sander

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Parts List

REF PART #

DESCRIPTION

REF PART #

DESCRIPTION

PH7761001

PH7761002

PSB01M

WORK TABLE

PH7761039

PH7761040

PH7761041

PH7761042

PS06M

SWITCH PLATE

DISC PAPER 80 GRIT

CAP SCREW M6-1 X 16

INTERNAL TOOTH WASHER 6MM

SANDING DISC

SWITCH

TOOL STORAGE BOTTOM COVER

TOOL STORAGE

PTLW13M

PH7761005

PS08M

PHLP HD SCR M5-.8 X 20

PHLP HD SCR M6-1 X 20

TRACKING KNOB M8-1.25

FLAT WASHER 8MM

TENSIONING KNOB M6-1 X 10

PHLP HD SCR M5-.8 X 10

RIGHT SAFE GUARD

FLAT WASHER 5MM

SAFE GUARD

PHLP HD SCR M5-.8 X 12

LOCK WASHER 5MM

DISC GUARD

PS26M

PLW01M

PH7761045

PW01M

PH7761008

PS79M

PHLP HD SCR M4-.7 X 8

DISC COVER/DUST PORT

GAUGE BODY

PH7761047

PS09M

PH7761010

PH7761011

PH7761012

PH7761013

PTLW02M

PS05M

PH7761049

PW02M

GAUGE SLIDE

GAUGE INDICATOR

EXT TOOTH WASHER 5MM

PHLP HD SCR M5-.8 X 8

FLAT WASHER 6MM

MITER GAUGE KNOB M6-1 X 22

LOCK KNOB M6-1 X 18

BULB 10W

PH7761051

PW02M

FLAT WASHER 5MM

HEX NUT M5-.8

PN06M

PW03M

PH7761054

PH7761055

P6201

TENSION PLATE

PH7761017

PH7761018

PH7761019

PH7761020

PH7761021

PH7761022

PH7761023

P6202

IDLER SHAFT CUSHION

BALL BEARING 6201RS

INT RETAINING RING 32MM

IDLER DRUM

PR29M

LAMP COVER

PH7761058

PH7761059

PH7761060

PH7761061

PH7761062

PN09M

LAMP ARM

IDLER SHAFT

MOTOR END CAP

SPECIAL WAVE WASHER 35MM

BEARING 6202

RIGHT GUARD COVER

COVER KNOB M5-.8 X 10

SANDING BELT 80 GRIT

HEX NUT M12-1.75

BELT DRIVE WHEEL

BELT SUPPORT

PH7761025

PH7761026

PH7761027

PH7761028

PH7761029

PH7761030

PH7761031

PH7761032

PLW02M

STATOR

ROTOR

PH7761064

PH7761065

PH7761066

PN03M

BASE

CORD CLIP FIXED PLATE

CORD BUSHING

TENSIONING ROD

HEX NUT M8-1.25

CORD CLIP

PH7761068

PH7761069

PH7761070

PN04M

COMPRESSION SPRING

DUST PORT

CORD

RUBBER FOOT

RIGHT TOOL REST

HEX NUT M4-.7

LOCK WASHER 4MM

FLAT WASHER 4MM

INT TOOTH WASHER 4MM

CAPACITOR 9M 300VAC 1.3" X 1.8"

CAPACITOR BRACKET

HEX NUT M8-1.25

PW05M

PN01M

HEX NUT M6-1

PTLW11M

PH7761036

PH7761037

PN03M

PH7761073

PN14M

LOCK WASHER 10MM

HEX NUT M10-1

PLW03M

LOCK WASHER 6MM

MACHINE ID LABEL

PH7761076

Safety labels warn about machine hazards and ways to prevent injury. The owner of this machine

MUST maintain the original location and readability of the labels on the machine. If any label is

removed or becomes unreadable, REPLACE that label before using the machine again. Contact

Grizzly at (800) 523-4777 or www.grizzly.com to order new labels.

-25-

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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, special,

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

carton. We will not accept any item back without this number. Proof of purchase must accompany the

merchandise.

The manufacturers reserve the right to change specifications at any time because they constantly strive to

achieve better quality equipment. We make every effort to ensure that our products meet high quality and

durability standards and we hope you never need to use this warranty.

Please feel free to write or call us if you have any questions about the machine or the manual.

Thank you again for your business and continued support. We hope to serve you again soon.

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H7761 2" x 27" Belt & 6" Disc Combo Sander

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