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3M 28403 Instruction Manual
3M 28403 Instruction Manual

3M 28403 Instruction Manual

Type-27 101 mm (4 in.) - 113 mm (4 1/2 in.) 12,000 rpm

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GRINDERS, TYPE-27 INSTRUCTION MANUAL
101 mm (4 in.) - 113 mm (4 1/2 in.)
12,000 RPM
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.
These pneumatic tools are intended for use in industrial locations, and used only by skilled, trained professionals in accordance with the instructions in this
manual. These pneumatic tools are designed to be used with the appropriate size Type 27 Wheel for grinding metals. They should only be used for such grinding
applications and within their marked capacity and ratings. Only accessories specifically recommended by 3M should be used with these tools. Use in any other
manner or with other accessories could lead to unsafe operating conditions.
Do not operate tool in water or in an excessively wet application.
Do not use disc pads that have a Max RPM less than the tool Max RPM rating.
Tools shall be inspected periodically to verify that ratings, markings, and labels are legible. Contact 3M Company to obtain replacement labels.
Prolonged vibration may cause injury
90 PSIG / 6.2 BAR MAX
Use accessories rated at tool speed or higher
WARNING:
Indicates a potentially hazardous situation which, if not avoided, may result in death or serious injury and/or property damage.
CAUTION:
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury and/or property damage.
Read the Safety
Data Sheets (SDS)
before using any materials.
Contact the suppliers of the
workpiece materials and abrasive
materials for copies of the SDS if
one is not readily available.
Important Safety Information
Summary of device labels containing safety information
Marking
12,000 r/min
Explanation of Signal Word Consequences
WARNING
Exposure to DUST generated from
workpiece and/or abrasive
materials can result in lung
damage and/or other physical
injury.
Use dust capture or local exhaust
as stated in the SDS. Wear
government-approved respiratory
protection and eye and skin
protection.
Failure to follow this warning can
result in serious lung damage
and/or physical injury.
Intended Use
WARNING: READ AND UNDERSTAND INSTRUCTION MANUAL BEFORE
OPERATING TOOL.
WARNING: ALWAYS WEAR APPROVED EYE PROTECTION
WARNING: ALWAYS WEAR APPROVED HEARING PROTECTION
WARNING: AVOID PROLONGED EXPOSURE TO VIBRATION
Direction of Rotation
Vibration Safety Note
Maximum Rotational Speed
Maximum Air Pressure
Accessories Speed Warning Note
1
Description
Original Instructions

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Summary of Contents for 3M 28403

  • Page 1 These pneumatic tools are designed to be used with the appropriate size Type 27 Wheel for grinding metals. They should only be used for such grinding applications and within their marked capacity and ratings. Only accessories specifically recommended by 3M should be used with these tools. Use in any other manner or with other accessories could lead to unsafe operating conditions.
  • Page 2 • If you notice any abnormal noise or vibration when operating the product, immediately discontinue its use and inspect for worn or damaged abrasive product or accessories. Correct or replace the suspect component. If abnormal noise or vibration still exists, return the tool to 3M for repair or replacement.
  • Page 3 Parts Page PARTS LIST FOR PN 28403, 12000 RPM, 4” GRINDER, TYPE-27 (SERIES C) Assembly Requirements Fig. Torque / Specification Threadlocker 10-15 ft-lb 3MTL62 Soak in Air Motor Oil None 120 in-lb None 120 in-lb None 15-20 ft-lb 3MTL62 90-120 in-lb...
  • Page 4 3MTL62 90-120 in-lb 3MTL62 Soak in Air Motor Oil None 15-20 in-lb 3MTL42 20-25 ft-lb 3MTL62 3M PN Description 3M PN Description 87431 Grease Seal (21" x 29" x 4") 28979 Vane Kevlar 1 HP (Set of 5) 87420 Bearing Retainer...
  • Page 5 To manually lubricate the tool, disconnect the airline and put 2 to 3 drops of suitable pneumatic motor lubricating oil such as 3M™ Air Tool Lubricant PN 20451 (or equivalent 10 centistoke oil) into the air inlet of the tool. Reconnect tool to the air supply and run tool slowly for a few seconds to allow air to circulate the oil.
  • Page 6 RPM is not exceeded and that there is no excessive tool vibration. 12. Do not exceed maximum recommended air pressure. Use safety 3M Type 27 Grinding Wheels and Accessories are designed specifically for equipment as recommended. use on the 3M Type 27 Grinders.
  • Page 7: Related Products

    Refer to ANSI B7.1-2000 Safety Requirements for Use, Care and Protection of Abrasive Wheels and ISO/EN 12413 Safety. Requirements for Bonded Abrasive Products for proper abrasive wheel applications. 3M™ Fibre Discs and Accessories 3M Fibre Discs and Accessories are designed specifically for use on the 3M Type 27 Grinders and Sanders. Fibre Disc Mounting Accessories 3M PN...
  • Page 8 Model 28405 has a 5/8”-11 spindle and can use wheels with either 16 mm or 7/8” center holes (CH). Model 28403 can accommodate an adapter to change the spindle to 5/8”-11 spindle to allow the use of wheels with either 16 mm or 7/8” center holes (CH).
  • Page 9 DUAL SIZE FLANGES FOR 3/8-24 SPINDLE TOOLS Models 28403 and 28413 can take a Dual Size Flange Set to allow the use of wheels with either 16 mm or 7/8” center holes (CH). NOTE: Both flanges must face the wheel with the same size lip inserted in the wheel’s center hole.
  • Page 10 The Hub attaches to the spindle of the tool. It provides a mounting base for the Disc Pad Face Plate. Hubs for Fibre Disc Mounting: 3M PN 28442 Disc Pad Hub for Short Shaft Tools 3/8-24 INT, 5/8-11 EXT 3M PN 28476 Low Profile Disc Pad Hub 5/8-11 INT...
  • Page 11 Fibre Discs can be held in place by a Disc Retainer Nut or by a pre-installed threaded center hub on the Fibre Disc itself (TN Quick Change System). 3M PN 02618 Disc Retainer Nut 5/16” x 5/8-11 INT Fibre Disc with TH Quick Change Center 5/8-11 INT...
  • Page 12 If a tool or any part thereof is defective within this warranty period, your exclusive remedy and 3M’s sole obligation will be, at 3M’s option, to repair or replace the tool or refund the purchase price.

This manual is also suitable for:

28405