Delta GR450 Instruction Manual
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Delta GR450 Instruction Manual

8" variable speed grinder
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8" Variable Speed Grinder
(Model GR450)
PART NO. 908944 - 06-30-04
Copyright © 2004 Delta Machinery
To learn more about DELTA MACHINERY
ESPAÑOL: PÁGINA 15
visit our website at: www.deltamachinery.com.
For Parts, Service, Warranty or other Assistance,
1-800-223-7278 (
1-800-463-3582).
please call
In Canada call

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  • Page 1 8" Variable Speed Grinder (Model GR450) PART NO. 908944 - 06-30-04 Copyright © 2004 Delta Machinery To learn more about DELTA MACHINERY ESPAÑOL: PÁGINA 15 visit our website at: www.deltamachinery.com. For Parts, Service, Warranty or other Assistance, 1-800-223-7278 ( 1-800-463-3582).

  • Page 2: Safety Guidelines - Definitions

    If you have any questions relative to a particular application, DO NOT use the machine until you have first contacted Delta to determine if it can or should be performed on the product.

  • Page 3: General Safety Rules

    2. WEAR EYE PROTECTION. ALWAYS USE SAFETY accessories and attachments not recommended by GLASSES. Also use face or dust mask if cutting Delta may cause damage to the machine or injury to the operation is dusty. Everyday eyeglasses are NOT safety user.

  • Page 4: Additional Safety Rules For Grinders

    ADDITIONAL SAFETY RULES FOR GRINDERS FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS INJURY. DO NOT OPERATE THIS MACHINE until it is 16. CLEAN THE MACHINE thoroughly when processing completely assembled and installed according to the different types of workpieces (wood, steel, or instructions.

  • Page 5: Power Connections

    POWER CONNECTIONS A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3- prong grounding type plugs and matching receptacle which will accept the machine’s plug.

  • Page 6: Extension Cords

    FUNCTIONAL DESCRIPTION FOREWORD The Delta ShopMaster Model GR450 is an 8" Variable Speed Grinder. This model comes with a flexible lamp, adjustable tool rests, buffing wheel, quick release arbor nut system, and two large eye shields for added safety. UNPACKING AND CLEANING Carefully unpack the machine and all loose items from the shipping container(s).

  • Page 7: Carton Contents

    CARTON CONTENTS 11. Eye Shield Knob (2) 1. Grinder 2. Buffing Wheel 12. 1/4" Flat Washer (4) 3. Buffing Wheel Bushing 13. 1/4-20x1/4" Hex Head Screw (2) 14. 3/4" Flat Washer (4) 4. Wrench 15. 5/16-18x5/8" Hex Head Screw (4) 5.

  • Page 8: Tool Rests

    ASSEMBLY For your own safety, do not connect the machine to the power source until the machine is completely assembled and you read and understand the entire instruction manual. TOOL RESTS Attach the adjustable tool rest (A) Fig. 1 to the left side of the tool rest arm (B), and fasten with one 5/16-18x3/4"...

  • Page 9: Operation

    Align the holes in the eye shield with the holes in the spark guard. Place the eye shield spacer (A) Fig. 5 in the space in the spark guard. Insert the eye shield bolt (A) Fig. 6 through the hole in the eye shield (B),the eye shield spacer (C), and the spark guard (D).

  • Page 10: Variable Speed Control

    GRINDING WHEELS The use of accessories and attachments not recommended by Delta may result in a risk of injury. Grinding wheels used with this grinder should be rated for 3600 RPM or higher, 8" in diameter with a 5/8" arbor hole, and 1"...

  • Page 11: Changing Grinding Wheels

    CHANGING GRINDING WHEELS DISCONNECT MACHINE FROM POWER SOURCE. Loosen the knobs (A) Fig. 12 and remove. Rotate the wheel covers (B) Fig. 12 toward the rear, and remove the wheel covers. Pull the two arbor nut wings (A) Fig. 13 out. To loosen, place the included wrench (B) Fig.
  • Page 12 INSTALLING BUFFING WHEEL DISCONNECT MACHINE FROM POWER SOURCE. Remove one grinding wheel as instructed in the section “CHANGING GRINDING WHEELS.” Remove the inner wheel flange (A) Fig. 16. Place the buffing wheel bushing (B) Fig. 17 on the shaft. Replace the inner wheel flange (A) Fig. 18 on the shaft.

  • Page 13: Wrench Storage

    Fig. 22 ACCESSORIES A complete line of accessories is available from your Delta Supplier, Porter-Cable • Delta Factory Service Centers, and Delta Authorized Service Stations. Please visit our Web Site www.deltamachinery.com for a catalog or for the name of your nearest supplier.
  • Page 14 Two Year Limited New Product Warranty Delta will repair or replace, at its expense and at its option, any new Delta machine, machine part, or machine accessory which in normal use has proven to be defective in workmanship or material, provided that the customer returns the product prepaid to a Delta factory service center or authorized service station with proof of purchase of the product within two years and provides Delta with reasonable opportunity to verify the alleged defect by inspection.
  • Page 15 Phone: (514) 336-8772 Fax: (604) 420-3522 Fax: (514) 336-3505 The following are trademarks of PORTER-CABLE • DELTA (Las siguientes son marcas registradas de PORTER-CABLE • DELTA S.A.) (Les marques suivantes sont des marques de fabriquant de la PORTER-CABLE • DELTA): Auto-Set ®...

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