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dumore 57 Series Parts List And Operating Instructions

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SERIES 57
PARTS LIST
AND
OPERATING
INSTRUCTIONS
DUMORE CORPORATION
Qu alit y i s o ur leg a cy
®
1030 Veterans Street, Mauston, WI 53948-9314
Telephone 608-847-6420
www.dumoretools.com
FAX 1-800-338-6673
TOOL POST GRINDERS
MODEL 8587-210
MODEL 8584-210
MODEL 8588-210
MODEL 8479
REV. 11/2019
Printed in USA
884-0263
29696

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  • Page 1 PARTS LIST OPERATING INSTRUCTIONS TOOL POST GRINDERS MODEL 8587-210 MODEL 8584-210 MODEL 8588-210 MODEL 8479 DUMORE CORPORATION 884-0263 Qu alit y i s o ur leg a cy REV. 11/2019 ® 1030 Veterans Street, Mauston, WI 53948-9314 29696 Telephone 608-847-6420 FAX 1-800-338-6673 www.dumoretools.com...

  • Page 2: Table Of Contents

    POLICY STATEMENT Dumore Corporation is committed to providing products that meet the ever expanding needs of our customers. It is our goal to be the continuing leader in product quality, safety, and reliability.

  • Page 3: Safety Instructions

    s SAFETY INSTRUCTIONS s WARNING: THIS TOOL SHOULD ONLY BE USED WHERE THE NEED FOR GROUNDING POINT OF OPERATION GUARDING DEVICES HAVE BEEN PROPERLY INSTALLED SO THAT IT IS IMPOSSIBLE FOR In the event of a malfunction or breakdown, grounding provides THE OPERATOR’S HANDS OR FINGERS TO REMAIN a path of least resistance for the electric current to reduce the WITHIN THE POINT OF OPERATION DURING THE ACTUAL...
  • Page 4 12. USE RIGHT TOOL 20. USE RECOMMENDED ACCESSORIES Do not use tools or attachments to do a job it was not Consult this manual or any Authorized Dumore Distributor designed for. for recommended accessories. The use of improper accessories may cause risk of injury to persons.

  • Page 5: Specifications

    SPECIFICATIONS MODEL 8587-210 Motor: 1/2 HP Universal open type, fan cooled (with intake air filter) Power Supply: The Model 8587-210 Grinder is equipped with a 120 Volt Universal Motor. Be sure that the voltage of the power supply agrees with the voltage shown on the motor nameplate. Spindles: Interchangeable.

  • Page 6: Rules For Safe Grinding

    s RULES FOR SAFE GRINDING • The outer flanges must not be reversed. The raised bearing surface (relieved side) must be against the Always wear Suitable Safety Glasses wheel. Otherwise, unequal bearing surfaces produce (ANSI Type Z87.1 with side shields or an equivalent) Also the same effect as unmatched flanges.

  • Page 7: Mounting Criteria

    Do not store wheel in the grinding case. Protect wheels from high humidity and freezing temperatures. We Recommend That Dumore Wheels Be Used With Dumore Grinders. This Symbol Is Used Throughout The Manual To Highlight Potential Dangers...
  • Page 8 NEVER EXCEED MAXIMUM RPM AS LISTED ON WHEEL BLOTTER. PART # MAX RPM NEVER EXCEED MAXIMUM WHEEL SIZE FOR SPINDLE OR GRINDER DUMORE CORPORATION ® 1030 Veterans Street NEVER RUN WHEELS WITHOUT RING Mauston, WI 53948 TESTING OR VIBRATION TESTING BEFORE EVERY USAGE.

  • Page 9: Set-Up Instructions

    Setting Up On A Lathe Before setting the grinder up on lathe, mount the workpiece either in a chuck, collet or between centers. The Series 57 Tool Post Grinder is designed to fit in the T-slot of a lathe compound. SET UP INSTRUCTIONS Remove the mounting post from the grinder by loosening the lock nut on the right side of the frame and pulling the post...
  • Page 10 Angle Setting of Feed On Actual Cut Taken Reduction in Lathe Compound Compound in Inches Into The Work Work Diameter 30° .001 .00087 .00173 45° .001 .00071 .00141 Figure 7 *60° *.001 *.00050 *.00100 70° .001 .00034 .00068 75° .001 .00026 .00052 80°...
  • Page 11 10. Before either diamond dressing the wheel or before applying it to the work, turn the unit on and stand clear (from in line with the grinding wheel) and allow the grinding wheel to run at full operating speed for at least one minute. Dress the wheel to make the grinding face parallel with the workpiece.

  • Page 12: Face Grinding

    INTERNAL GRINDING s IMPORTANT: ALWAYS USE DUMORE BALANCED WHEELS To grind internally, remove the wheel cover, grinding wheel, The selection of a balanced wheel is essential to precision collars, and grinding spindle, and insert an internal grinding grinding.

  • Page 13: Selecting The Proper Spindle

    SELECTING THE PROPER SPINDLE For internal grinding, choose the spindle that provides the most When selecting a toolpost grinder which uses interchangeable rigid set-up. This means that whenever possible a three bearing spindles, care should be taken to choose the spindle which most closely fits the user’s application.
  • Page 14 EXTERNAL COLLET TYPE MOUNTED INSERT SPINDLE ID INSERT OD INSERT WHEEL INSERT 3-BEARING INTERNAL MAX INTERNAL GRINDING DEPTH MAXI- MIN. HOLES HOLES MAXI- INT. SMALLER LARGER WEIGHTS RECOM- GRIND THAN THAN CATALOG WHEEL MENDED WHEEL -ING QUILL QUILL EQUIPMENT SHIP NUMBER BORE SPEED...
  • Page 15 7 INTERCHANGEABLE SPINDLE INSERTS (Must be used with 802-0024 Insert Spindle) MOUNTED - WHEEL TYPE INSERT SPINDLE INTERNAL TYPE INSERT SPINDLE Part No. 423-0015 Part No. 423-0006 Maximum recommended speed: 42,500 RPM Maximum recommended speed: 32,500 RPM Complete with chuck, one each 1/8” and 1/4” precision collet Complete with two balanced wheel collars and general purpose and our assorted mounted wheels.
  • Page 16 Storage should provide protection against damage. GRINDING WHEELS EXPLANATION OF THE CODE IS AS FOLLOWS: Dumore wheels are available in six types for grinding the various types of materials encountered in the majority of General-purpose wheel, for steels of hardness up to grinding applications.
  • Page 17 Part No. Code Description Grit Color Part No. Code Description Grit Color TWO AND ONE-HALF DIAMETER (Continued) FOUR INCH DIAMETER 774-0065 2-1-w x 3-i x .375 774-0201 4 x 3-i x .375 774-0192 2-1-w x 3-i x .375 774-0098 4 x 1-w x .375 774-0199 2-1-w x 3-i x .375 774-0100...
  • Page 18 6” 6” MAINTENANCE INSTRUCTIONS The Dumore Grinder is a precision tool and should be properly cared for to assure finest grinding results and long, trouble-free service. LUBRICATION should be returned to its exact position as before removal to prevent changes in the brush seating. Brushes should be The motor requires no lubrication, since it is equipped with replaced when worn to 1/4 inch length.
  • Page 19 SERIES 57 MODELS: 8587-210 8588-210 8584-210 8479 Note: Motor for Models 8584-210, 8587-210, 8588-210...
  • Page 20 All parts listed herein may be ordered from your Dumore Distributor or from any authorized Dumore Service Station. Only Dumore replacement parts are authorized in Dumore products. Filing this list for future reference will assure your obtaining proper parts for service.
  • Page 21 SERIES 57 PARTS LIST, CONTINUED ITEM PART MODEL NUMBER DESCRIPTION REQ. 18 ... 572-0051 ..Cord Guard Assembly ........1 ..8587 ..Cord Guard Assembly .
  • Page 22 SERIES 57 PARTS LIST, CONTINUED ITEM PART MODEL NUMBER DESCRIPTION REQ. 45 ... 442-0023 ..Tee Bolt Assembly ......... . 1 ..ALL ..46 .
  • Page 23 SERIES 57 PARTS LIST, CONTINUED ITEM PART MODEL NUMBER DESCRIPTION REQ. 77 ..R819-0413 ..Round Head Screw ......... 3 ..8587 ...

  • Page 24: Warranty

    The Dumore Corporation warrants the tools manufactured and/or repaired by it to be free from defects in material and workmanship for a period of 1 year after purchase. Any tool or part proved to Dumore’s satisfaction to be defective during that period will be repaired or replaced, at Dumore’s option, if returned prepaid to the Dumore Corporation, 1030 Veterans St., Mauston, Wisconsin...

This manual is also suitable for:

8587-2108584-2108588-2108479

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