Grizzly H7757 User Manual

Model H7757

3" MINI WOOL BUFFER

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.

#JK7772 PRINTED IN CHINA

Table of Contents

SECTION 1: SAFETY .......................................................................................................2

SECTION 2: INTRODUCTION .........................................................................................5

Foreword .....................................................................................................................5

Contact Information ....................................................................................................5

SECTION 3: SET UP ........................................................................................................6

Unpacking ...................................................................................................................6

Inventory .....................................................................................................................6

Items Needed for Set Up ............................................................................................7

Tool Rests ..................................................................................................................7

Eye Shields .................................................................................................................7

Mounting .....................................................................................................................8

SECTION 4: OPERATIONS .............................................................................................9

Test Run .....................................................................................................................9

Grinding and Buffing .................................................................................................10

Wheel Care ...............................................................................................................10

Grinding Wheel Dressing ..........................................................................................11

Buffing Wheel Care ..................................................................................................11

Wheel Selection ........................................................................................................12

Wheel Inspection ......................................................................................................12

Replacing Wheels .....................................................................................................13

SECTION 5: ACCESSORIES .........................................................................................15

SECTION 5: MAINTENANCE ........................................................................................16

General .....................................................................................................................16

Lubrication ................................................................................................................16

Grinding Wheels .......................................................................................................16

Buffing Wheels .........................................................................................................16

SECTION 6: SERVICE ...................................................................................................17

Troubleshooting ........................................................................................................17

Parts Breakdown ......................................................................................................18

Parts List ...................................................................................................................19

WARRANTY AND RETURNS ........................................................................................20

SECTION 1: SAFETY

For Your Own Safety Read Instruction Manual

Before Operating This Equipment

The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words which are intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a 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 infor-

NOTICE

mation about proper operation of the equipment.

Safety Instructions for Machinery

1. READ THROUGH THE ENTIRE MANUAL BEFORE STARTING MACHINERY. Machinery presents

serious injury hazards to untrained users.

2. ALWAYS USE ANSI APPROVED SAFETY GLASSES WHEN OP ERATI NG MA CHINE RY

Everyday eyeglasses only have impact resistant lenses, they are NOT safety glasses.

3. ALWAYS WEAR AN ANSI APPROVED RESPIRATOR WHEN OPERATING MACHINERY THAT PRODUCES DUST.

a carcinogen and can cause cancer and severe respiratory illnesses.

Wood dust is

4. ALWAYS USE HEARING PROTECTION WHEN OPERATING MACHINERY. Machinery noise can

cause permanent hearing damage.

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 contain long hair and wear non-slip footwear.

6. NEVER OPERATE MACHINERY WHEN TIRED, OR UNDER THE INFLUENCE OF DRUGS OR ALCOHOL. Be mentally alert at all

times when running machinery.

Model H7757 3" Mini Wool Buffer-2-

7. ONLY ALLOW TRAINED AND PROPERLY SUPERVISED PER SONNEL TO OPERATE MACHIN ERY. Make sure operation instruc-

tions are safe and clearly under stood.

8. KEEP CHILDREN AND VISITORS

AWAY. Keep all children and visi-

tors a safe distance from the work area.

9. MAKE WORKSHOP CHILD

PROOF. Use padlocks, master

switches, and remove switch keys.

10. NEVER LEAVE WHEN MACHINE IS RUNNING.

and allow all moving parts to come to a complete stop before leaving machine unattended.

11. DO NOT USE IN DANGEROUS

ENVIRONMENTS. DO NOT use

machinery in damp, wet locations, or where any flammable or noxious fumes may exist.

12. KEEP WORK AREA CLEAN AND

WELL LIT. Clutter and dark shad

ows may cause accidents.

13. USE A GROUNDED EXTENSION CORD RATED FOR THE MACHINE AMPERAGE. Undersized cords

overheat and lose power. Replace extension cords if they become damaged. DO NOT use extension cords for 220V machinery.

14.

ALWAYS DISCONNECT FROM POWER SOURCE B EFORE SERVICING MACHINERY. Make

sure switch is in reconnecting.

15. MAINTAIN MACHINERY WITH

CARE. Keep blades sharp and

clean for best and safest perfor mance. Follow instructions for lubri cating and changing accessories.

Turn power OFF

OFF

position before

16. MAKE SURE GUARDS ARE IN

PLACE AND WORK CORRECTLY BEFORE USING MACHINERY.

17. REMOVE ADJUSTING KEYS

AND WRENCHES. Make a habit

of checking for keys and adjusting wrenches before turning machinery ON.

18. CHECK FOR DAMAGED PARTS

BEFORE USING MACHINERY.

Check for binding and alignment of parts, broken parts, part mount ing, loose bolts, and any other conditions that may affect machine operation. Repair or replace dam aged parts.

19. DO NOT FORCE MACHINERY. Work at the speed for which the machine or accessory was designed.

20. SECURE WO RKPIECE. Use clamps or a vise to hold the workpiece when practical. A secured workpiece protects your hands and frees both hands to operate the machine.

21. DO NOT OVERREACH. Keep proper footing and balance at all times.

22. MANY MACHINES WILL EJECT THE WORKPIECE TOWARD THE OPERATOR. Know and avoid con-

ditions that cause the workpiece to "kickback."

23. ALWAYS LOCK MOBILE BASES (IF USED) BEFORE OPERATING MACHINERY.

24. BE AWARE THAT CERTAIN DUST MAY BE HAZARDOUS to

the respiratory systems of people and animals, especially fine dust. Make sure you know the hazards associated with the type of dust you will be exposed to and always wear a respirator approved for that type of dust.

Model H7757 3" Mini Wool Buffer -3-

Safety Instructions for the 3" Mini Wool Buffer

1. EYE PROTECTION. Grinding

causes small particles to become airborne at a high rate of speed. ALWAYS wear safety glasses when using this machine.

2. MOUNTING TO BENCH/STAND.

An unsecured grinder may become dangerously out of control during operation. Make sure grinder is FIRMLY secured to a bench/stand before use.

3. WHEEL SPEED RATING.

Grinding wheels operated at a faster speed than rated for may break or fly apart. Before mounting a new wheel, be sure the wheel RPM rating is equal or higher than the speed of the buffer.

4. WHEEL FLANGES. Only use the flanges included with the buffer when mounting wheels. Other flanges may not properly secure the wheel and cause an accident.

6. STARTING BUFFER. If a grinding wheel is damaged, it will usually fly apart shortly after start-up. To protect yourself, always stand to the side of the buffer when turning it ON and allow it to gain full speed before standing in front of it.

8. SIDE GRINDING. Grinding on the side of wheels can cause them to break and fly apart—unless the wheel is rated for side grinding.

9. TOP GRINDING. Grinding on the top of wheels greatly increases the risk of workpiece kickback. Always grind on the downward part of the wheel.

10. HAND TO WHEEL CONTACT. Grinding wheels can remove a lot of skin quickly. Keep a firm grip on the workpiece and position your hands a safe distance away when grinding. Avoid wearing gloves as they may get caught in the grinding wheel and cause serious entanglement injuries.

11. TOOL REST POSITION. If the tool rest is too far away from the wheel, the workpiece may be pulled down, causing loss of control and pulling your hand into the grinding wheel. Keep the tool rest within 1⁄8" from the wheel when operating.

12. CRACKED WHEEL. Cracked wheels may break and fly apart during operation. Replace cracked wheels immediately!

7. LUNG PROTECTION. Grinding produces hazardous dust, which may cause long-term respiratory problems if breathed. Always wear a NIOSH approved dust mask or respirator when grinding.

Model H7757 3" Mini Wool Buffer-4-

SECTION 2: INTRODUCTION

Foreword Contact Information

We are proud to offer the Grizzly Model H7757 3" Mini Wool Buffer. This Model is part of a growing Grizzly family of fine power tools. 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.

It is our pleasure to provide this manual with the Model H7757. It was written to encourage safety considerations and guide you through general operating procedures and maintenance.

The specifications, details, and photographs in this manual represent the Model H7757 as supplied when the manual was prepared. However, owing to Grizzly’s policy of continuous improvement, changes may be made at any time with no obligation on the part of Grizzly.

If you have any comments regarding this manual, please write to us at the following address:

Grizzly Industrial, Inc.

C/O Technical Documentation

P.O. Box 2069

Bellingham, WA 98227-2069

Most importantly, we stand behind our tools. If you have any service questions or parts requests, please call or write us at the location listed below.

Grizzly Industrial, Inc.

1203 Lycoming Mall Circle

Muncy, PA 17756

Phone: (570) 546-9663

Fax: (800) 438-5901 E-Mail: techsupport@grizzly.com Web Site: http://www.grizzly.com

Read the manual before operation. Become familiar with this machine, its safety instructions, and its operation before beginning any work. Serious personal injury may result if safety or operational information is not under stood or followed.

Model H7757 3" Mini Wool Buffer -5-

SECTION 3: SET UP

Unpacking Inventory

Your mini wool buffer left our warehouse in a carefully packed box. If you discover the mini wool buffer is damaged after you have signed for delivery, please immediately call

Customer Service at (570) 546-9663 for advice.

Save the containers and all packing materials for possible inspection by the carrier or its agent. Otherwise, filing a freight claim

can be difficult.

When you are completely satisfied with the condition of the shipment, you should inventory the equipment.

After you have unpacked the carton you should ﬁnd the following.

Model H7757 Inventory (Figure 1)

A. Buffer ................................................. 1

B. Eye Shield Brackets ........................... 2

C. Tool Rests .......................................... 2

D. Eye Shields ........................................ 2

Tools and Hardware

Phillips Head Screws M5-.8 x 12 ............. 4

Wing Bolts M4-.7 x 10 .............................. 2

Phillips Head Screws M4-.7 x 40 ............. 1

Flat Washers 4mm ................................... 2

Flat Washers 5mm ................................... 4

Hex Nuts M5-.8 ........................................ 4

Hex Nuts M4-.7 ........................................ 2

Lock Washers 5mm .................................. 4

Lock Washers 4mm .................................. 2

Wrench 7mm x 10mm .............................. 1

Wrench 8mm x 10mm .............................. 1

Figure 1. Model H7757 inventory

Model H7757 3" Mini Wool Buffer-6-

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