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SLIMLINE BENCH GRINDER
MODEL H4378/H4379
INSTRUCTION MANUAL
Model H4379
Model H4378
COPYRIGHT © APRIL, 2002 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
PRINTED IN CHINA.
ONLINE MANUAL DISCLAIMER
THE INFORMATION IN THIS MANUAL REPRESENTS THE CONFIGURATION OF THE MACHINE AS IT IS CURRENTLY BEING SHIPPED. THE
MACHINE CONFIGURATION CAN CHANGE AS PRODUCT IMPROVEMENTS ARE INCORPORATED. IF YOU OWN AN EARLIER VERSION OF THE
MACHINE, THIS MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE. CONTACT CUSTOMER SERVICE IF YOU HAVE ANY QUESTIONS
ABOUT DIFFERENCES. PREVIOUS VERSIONS ARE NOT AVAILABLE ONLINE.
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Summary of Contents for Grizzly H437
- Page 1 Model H4378 COPYRIGHT © APRIL, 2002 BY GRIZZLY INDUSTRIAL, INC. WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. PRINTED IN CHINA. ONLINE MANUAL DISCLAIMER THE INFORMATION IN THIS MANUAL REPRESENTS THE CONFIGURATION OF THE MACHINE AS IT IS CURRENTLY BEING SHIPPED. THE MACHINE CONFIGURATION CAN CHANGE AS PRODUCT IMPROVEMENTS ARE INCORPORATED.
- Page 2 WARNING Some dust created by power sanding, sawing, grind- ing, 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. •...
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Page 3: Table Of Contents
SAFETY SAFETY RULES FOR POWER TOOLS ...2-3 ADDITIONAL SAFETY INSTRUCTIONS FOR GRINDERS ...4 CIRCUIT REQUIREMENTS 110V OPERATION ...5 EXTENSION CORDS ...5 GROUNDING ...5 INTRODUCTION COMMENTARY...6 ASSEMBLY UNPACKING ...7 PIECE INVENTORY ...7 MOUNTING ...8 TOOL RESTS ...8 EYE SHIELDS ...8 OPERATIONS TEST RUN...9 SAFE GRINDING ...10 WHEEL CARE...10... -
Page 4: Safety
H4378/H4379 Slimline Bench Grinder VISITORS... - Page 5 15. USE RECOMMENDED ACCESSORIES. Consult the owner’s manual for recom- mended accessories. The use of improper accessories may cause risk of injury. H4378/H4379 Slimline Bench Grinder 16. REDUCE THE RISK OF UNINTENTION- 17. MANY WOODWORKING TOOLS CAN LENGTH 50ft 100ft 18.
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Page 6: Additional Safety Instructions For Grinders
Additional Safety Instructions For Grinders ALWAYS WEAR EYE PROTECTION! MAKE SURE GRINDER IS SECURED FIRMLY TO A BENCH OR STAND BEFORE USE. Any “wobbles” must be corrected by shimming or blocking before operation. BEFORE MOUNTING A NEW WHEEL, BE SURE WHEEL RPM IS RATED AT AN EQUAL OR HIGHER RPM THAN THE GRINDER. -
Page 7: Circuit Requirements 110V Operation
A 10 amp dedicated circuit should be used with this grinder. Always check to see if your current wires are capable of handling a 10 amp load. If you are unsure, consult the advice of a qualified electrician. -
Page 8: Introduction Commentary
Commentary We are proud to offer the Grizzly Model H4378/H4379 Slimline Bench Grinder. The Model H4378/H4379 is part of a growing Grizzly family of fine woodworking machinery. When used accord- ing to the guidelines set forth in this manual, you can expect years of trouble-free, enjoyable oper- ation and proof of Grizzly’s commitment to cus-... -
Page 9: Assembly
For easier assembly, or to identify specific parts, please refer to the detailed illustrations at the end of the manual. When mounted, the cooling tray can be easi- ly damaged if the grinder is tipped forward. NOTICE NOTICE... -
Page 10: Mounting
The Model H4378/H4379 weighs 22/27 lbs. Make sure the workbench on which you plan to mount the grinder is sturdy enough to hold the weight of the machine and any downward pressure that may be applied during operation. The workbench... -
Page 11: Operations
The following section was designed to give instructions on the basic operations of this grinder. However, it is in no way comprehen- sive of every grinder application. There are many different grinding wheels and attach- ments available for grinders. WE STRONGLY... -
Page 12: Safe Grinding
Safe Grinding The grinder is a safe tool when used properly. In addition to the safety instructions in this manual, the most important safety consideration is to use common sense at all times. What may be okay in one situation, may not be safe in another. -
Page 13: Wheel Selection
The most common Abrasive Types used are A for Aluminum Oxide and C for Silicon Carbide, and occasionally SG for Seeded Gel. H4378/H4379 Slimline Bench Grinder The Grit Size is a number that refers to the size of the abrasive grain in the wheel. The lower the number, the coarser the wheel. -
Page 14: Wheel Inspection
-12- STOP Rated 3500 RPM Make sure your grinder is not faster than the rated RPM of this wheel Type-1 60 Grit Aluminum Grade L... -
Page 15: Wheel Mounting
The wheel guard assembly must be removed in order to mount or dismount a grinding wheel. To do this: Disconnect the grinder from the power supply! Remove the 3 Phillips head screws and nuts that go through the outer guard. Take off the outer guard and the rim guard. -
Page 16: Maintenance
Failure to do this may result in serious personal injury. General Always be aware of the condition of your grinder. Routinely check the condition of the following items and repair or replace as necessary: • Loose mounting bolts •... -
Page 17: Maintenance Notes
Maintenance Notes Maintenance Performed Date Approximate Hours Of Use H4378/H4379 Slimline Bench Grinder -15-... -
Page 18: Closure
-16- We recommend you keep a copy of our current catalog for complete information regarding Grizzly's warranty and return policy. If you need additional technical information relating to this machine, or if you need general assistance or replacement parts, please contact the Service Department listed in Section 3: Introduction. -
Page 19: Troubleshooting
TROUBLESHOOTING This section covers the most common problems encountered in grinding and what to do about them. Do not make any adjustments until grinder is unplugged and moving parts have come to a complete stop. SYMPTOM POSSIBLE CAUSE Motor will not start. -
Page 20: Machine Data
Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 MODEL H4378 SLIMLINE BENCH GRINDER Design Type... Bench Model Overall Dimensions: Height ...10" Width...18 Depth ...10" Shipping Weight ...25 lbs. Net Weight...22 lbs. Box Size ...17 Footprint...8"... -
Page 21: Machine Data
Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 MODEL H4379 SLIMLINE BENCH GRINDER Design Type... Bench Model Overall Dimensions: Height...10 Width...18 Depth ...10 Shipping Weight ...30 lbs. Net Weight...27 lbs. Box Size ...18" L x 11" W x 11 Footprint...8"... -
Page 22: Parts Breakdown And Parts List
-20- H4378/H4379 Slimline Bench Grinder... - Page 23 PH4379019 BUSHING P6203 BALL BEARING 6203-2RS PH4379021 MOTOR STATOR PH4378022 WIRE NUT PH4379023 MOTOR SHAFT PH4378024 SPARK BREAKER PH4378025 ADJUSTABLE REST PH4379026 WHEEL GUARD H4378/H4379 Slimline Bench Grinder MODEL H4378 PARTS Ref# Part# ⁄ " ⁄ " ⁄ "-20 X ⁄...
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Page 24: Warranty And Returns
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. - Page 25 Do you think your purchase represents good value? ___Yes Would you recommend Grizzly Industrial to a friend? ___Yes Would you allow us to use your name as a reference for Grizzly customers in your area? Note: We never use names more than three times. ___Yes Comments:_________________________________________________...
- Page 26 FOLD ALONG DOTTED LINE FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend: Name_______________________________ Street_______________________________ City______________State______Zip______ GRIZZLY INDUSTRIAL, INC. P.O. BOX 2069 BELLINGHAM, WA 98227-2069 TAPE ALONG EDGES--PLEASE DO NOT STAPLE Place Stamp Here...