3M 28391 Instruction Manual
3M 28391 Instruction Manual

3M 28391 Instruction Manual

Electric variable speed polisher

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3
ELECTRIC VARIABLE SPEED POLISHER INSTRUCTION MANUAL
7 (178 mm), 5/8-11 External Spindle
120VAC 50-60 Hz.
1000 – 3000/min.
Please read, understand and follow all safety information contained in these instructions prior to the use of this tool. Retain these instructions for future reference.
This tool is intended for use in industrial locations, and used only by skilled, trained professionals in accordance with the instructions in this manual. It is designed
to be used with 3M pad adapters and appropriate 3M foam buffing pads and with appropriate buffing or polishing compounds for buffing paint finishes, coating
finishes, metals, wood, stone, plastics and other materials. It should only be used for such buffing applications and within marked capacity and ratings. Only
accessories specifically recommended by 3M should be used with this tool. Use in any other manner or with other accessories could lead to unsafe operating
conditions.
Do not operate tool in an excessively damp or wet application.
Do not use buffing pads that have a Max RPM less than the tool Max RPM rating.
WARNING:
CAUTION:
Summary of Device and Carton Labels containing Safety Information
Symbol indicates direction of tool rotation
CAUTION:
For safe operation, see instructions manual
Symbol indicates "Class II" construction
WARNING - Hazardous voltage
Recycle; Do not dispose of in household waste
Wear eye protection
Wear respiratory protection
Wear golves
Wear hearing protection
American Wire Gauge
Unified Coarse Thread
Norma Oficial Mexicana Approved Mark
Underwriters Laboratories, Inc. United States and Canada Approved Mark
Important Safety Information
Explanation of Signal Word Consequences
Indicates a potentially hazardous situation which, if not avoided, may result in death or serious injury
and/or property damage.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury and/or property damage.
Intended Use
1
Original Instructions

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Summary of Contents for 3M 28391

  • Page 1 This tool is intended for use in industrial locations, and used only by skilled, trained professionals in accordance with the instructions in this manual. It is designed to be used with 3M pad adapters and appropriate 3M foam buffing pads and with appropriate buffing or polishing compounds for buffing paint finishes, coating finishes, metals, wood, stone, plastics and other materials.
  • Page 2: General Power Tool Safety Warnings

    The arbour size of backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control. 3M Electric Variable Speed Polisher...
  • Page 3: Additional Safety Warnings

    To reduce the risk associated with serious damage to the power tool: • Do not operate this tool on a current where the voltage is not within correct limits. Do not operate tools rated A.C. on D.C. current. 3M Electric Variable Speed Polisher...
  • Page 4 Parts Page 3M Electric Variable Speed Polisher...
  • Page 5: Parts List

    Parts List Model 28391 Parts List Quantity Item Description 3M PN Spindle 30901 Pan Head Screw M5X16 30902 Spring Washer 30903 Gear Box Cover 30904 30905 Felt Ring Ball Bearing 30906 Bearing Cover 30907 Spring Washer 30908 Pan Head Screw M4X10...
  • Page 6 ATTACHING ADAPTERS 1. 3M™ Adaptor, Part Number 05710, 5/8 in. and 3M™ Quick Release Adaptor Part Number 05752, 5/8 in. each screw onto the tool spindle. 2. The Spindle Lock may be used to secure the Spindle and a 17 mm or 11/16 in. open-end wrench may be used to tighten the adapter.
  • Page 7: Maintenance

    ATTACHING BACK-UP AND POLISHING PADS TO 3M™ ADAPTER 05710 1. 3M Adaptor Part Number 05710, 5/8 in. provides a short 5/8-11 mounting stud for Hookit™ Back-Up Pads and Perfect-It™ Polishing Pads. 2. The Spindle Lock may be used to secure the Spindle and the Back-Up pad or Polishing Pad may be tightened or loosened by hand or with an open end wrench.
  • Page 8 3M product is used and the time and environmental conditions in which the product is expected to perform. Since these factors are uniquely within the user’s knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the user’s method of application.

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