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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 grinding wheels that have a Max RPM less than the marked RPM rating on the tool.
90psi / .62Mpa / 6.2Bars Max
12,000 RPM
Use accessories rated at tool RPM or higher
Prolonged vibration may cause injury
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.
To reduce the risks associated with impact from abrasive product or tool breakup, sharp edges, hazardous pressure, rupture, vibration and noise:
• Read, understand and follow the safety information contained in these instructions prior to the use of this tool. Retain these instructions for future reference.
• Only personnel who are properly trained should be allowed to service this tool.
• Practice safety requirements. Work alert, have proper attire, and do not operate tools under the influence of alcohol or drugs.
• Operators and other personnel must always wear protection for eyes, ears, and respiratory protection when in the work area or while operating this
product. Follow your employer's safety policy for PPE's and/or ANSI Z87.1 or local/national standards for eyewear and other personal protective equipment
requirements.
• Wear leather apron or other protective apparel, taking into consideration the type of work being done.
• Never exceed marked maximum input pressure (90psi / .62Mpa / 6.2Bars).
• Proper eye protection must be worn at all times.
• Tool is not to be operated in the presence of bystanders.
• 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.
Refer to warranty instructions.
• Never operate this tool without all guards or safety features in place and in proper working order.
• Prior to use, ensure guard is oriented to protect the operator from flying fragments and is properly secured.
• Make sure the tool is disconnected from its air source before servicing, inspecting, maintaining, cleaning, and before changing abrasive product.
• Only use wheel retainers (flanges) and wheel arbors supplied by 3M.
• Never use this tool with Type 1 wheels or cut-off wheels.
Rev. 2/19/2015
Important Safety Information
Summary of device labels containing safety information
Marking
Explanation of Signal Word Consequences
Intended Use
WARNING: Refer to Instruction Manual
Direction of Rotation
Maximum Pneumatic Inlet Pressure
Maximum Rotational Speed
Accessories Safety Note
Vibration Safety Note
WARNING
1
Description
Original Instructions

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Summary of Contents for 3M TYPE-27

  • Page 1 • 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 2 • Never over-ride or disable the safety features of the start-stop control such that it is in the on position. • Use only with mounting hardware recommended by 3M; check with 3M for mounting hardware requirements. • If the tool is jammed, shut off the tool and ease it free. Ensure the abrasive product is correctly secured.
  • Page 3 Parts Page PARTS LIST FOR PN 28403, 12000 RPM, 4” GRINDER, TYPE-27 USE 3M TL62 26 27 THREADLOCKER 24 25 15-20 FT-LB USE 3M TL62 43 44 THREADLOCKER 20 21 40 41 90-130 IN-LB USE 3M TL62 THREADLOCKER LUBRICATE 20-25 FT-LB...
  • Page 4 Parts Page PARTS LIST FOR PN 28405, 12000 RPM, 4 1/2” GRINDER, TYPE-27 25 26 USE 3M TL62 THREADLOCKER 15-20 FT-LB 42 43 USE 3M TL62 19 20 THREADLOCKER 39 40 90-130 IN-LB USE 3M TL62 THREADLOCKER LUBRICATE 20-25 FT-LB...
  • Page 5: Use 3M Tl62 Threadlocker

    Parts Page PARTS LIST FOR PN 28413, 12000 RPM, 4” GRINDER, TYPE-27 EXTENDED USE 3M TL62 THREADLOCKER 90-130 IN-LB FILL WITH COUPLING GREASE USE 3M TL62 THREADLOCKER 20-30 FT-LB USE 3M TL62 THREADLOCKER USE 3M TL62 90-130 IN-LB THREADLOCKER 30-40 FT-LB...
  • Page 6: In-Lb

    Parts Page PARTS LIST FOR PN 28414, 12000 RPM, 4 1/2” GRINDER, TYPE-27 EXTENDED USE 3M TL62 THREADLOCKER 90-130 IN-LB FILL WITH COUPLING GREASE USE 3M TL62 THREADLOCKER USE 3M TL62 THREADLOCKER 30-40 FT-LB 90-130 IN-LB USE 3M TL62 THREADLOCKER...
  • Page 7: Fuchs Renolit A X S2 Or Equal

    If such equipment is not used, the tool should be manually lubricated. 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, Fuji Kosan FK-20, Mobil ALMO 525 into the hose end (inlet) of the tool.
  • Page 8 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 9 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 10 Type 27 Wheel Mounting Hardware and Usage Type 27 Grinding Wheels are also known as Depressed Center Grinding Wheels. They have a dish shaped center to allow the lower mounting hardware or flange to be recessed into the wheel. This allows the wheel to be used in a nearly flat orientation when needed. Models 28403 and 28413 have 3/8”-24 threads per inch spindles.
  • Page 11 MOUNTING 7/8” CENTER HOLE TYPE 27 WHEELS Type 27 Wheels with 7/8” center holes (CH) may use flat flanges that have a 7/8” lip to center the wheel. 5/8”-11 threads per NOTE: 7/8” lip to center the wheel Type 27 Wheel with 7/8” inch Spindle with Upper CH properly centered Flange properly...
  • Page 12 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 13 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 14 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.