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Original Instructions

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GRINDER, TYPE 27 INSTRUCTION MANUAL
115 mm - 125 mm (4 ½ in - 5 in)
12,000 RPM

Important Safety Information

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.

Intended Use

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 specifi cally 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.

Summary of device labels containing safety information

Marking

Description

 WARNING:

 READ AND UNDERSTAND INSTRUCTION MANUAL BEFORE 

OPERATING TOOL.

 WARNING:

 ALWAYS WEAR APPROVED EYE PROTECTION

 WARNING:

 ALWAYS WEAR APPROVED HEARING PROTECTION

Direction of Rotation

Prolonged vibration may cause injury

Vibration Safety Note

12,000 r/min.

Maximum Rotational Speed

 90 PSIG / 6.2 BAR MAX

Maximum Air Pressure

Use accessories rated at tool speed or higher

Accessories Speed Warning Note

Use appropriate guard

Guard Safety Warning Note

Explanation of Signal Word Consequences

 

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.

WARNING!

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.

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.

Summary of Contents for 27

Page 1: ...ING READ AND UNDERSTAND INSTRUCTION MANUAL BEFORE OPERATING TOOL WARNING ALWAYS WEAR APPROVED EYE PROTECTION WARNING ALWAYS WEAR APPROVED HEARING PROTECTION Direction of Rotation Prolonged vibration may cause injury Vibration Safety Note 12 000 r min Maximum Rotational Speed 90 PSIG 6 2 BAR MAX Maximum Air Pressure Use accessories rated at tool speed or higher Accessories Speed Warning Note Use ap...

Page 2: ...ck 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 Never allow this tool to be used by children or other untrained people Do not leave an unattended tool connected to air source To reduce the risks associated with skin abrasion burns cutting severing impact or entrapment Never install grinding whee...

Page 3: ... 5 mm x 2 mm 1 40 54077 Ball Air Inlet 1 41 54078 Spring Air Inlet 1 42 54102 Bushing Air Inlet 1 43 54101 Filter Air Inlet 1 44 54099 Screw Exhaust M5 x 6 mm 2 45 54088 Cover Exhaust 1 46 54098 Gasket Exhaust 1 47 54087 Baffle Exhaust 1 48 54086 Spring Exhaust 2 49 54085 Piston Exhaust 2 50 54084 Housing Exhaust 2 51 54105 Wrench Spanner 4 mm x 30 mm B C 1 54107 Rebuild Kit OPT 54106 Tool Kit Reb...

Page 4: ... 19 88790 Filter Air Inlet 1 20 88791 Lever 1 21 88792 Lock Pin Sleeve 1 22 88793 Lock Pin Spring 1 23 88794 Lock Pin 1 24 88795 Lock Pin Housing 1 25 54052 Circlip 1 Fig 3M PN Description Qty 26 54053 Bearing 1 27 54060 Wick Oil Grease 1 28 54054 Gear Set 1 29 54055 Bearing Main Spindle 1 30 54057 Spindle 5 8 11 1 31 54058 Felt Ring 32 mm x 4 mm 1 32 54059 Retaining Ring 38 mm x 6 mm 1 33 54061 A...

Page 5: ...supply as shown in Figure A Do not connect the tool to the airline system without an easily accessible air shut off valve It is strongly recommended that an air filter regulator and lubricator FRL be used as shown in Figure A as this will supply clean lubricated air at the correct pressure to the tool In any case appropriate air pressure regulators shall be used at all times while operating this t...

Page 6: ...f this tool 14 The tool is not electrically insulated Do not use where there is a possibility of contact with live electricity gas pipes and or water pipes 15 Take care to avoid entanglement with the moving parts of the tool with clothing ties hair cleaning rags or loose hanging objects If entangled stop air supply immediately to avoid contact with moving tool parts 16 Keep hands clear of the spin...

Page 7: ...n needed 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 1 4 Grinding Wheel Type 27 4 1 2 Std Guard PN 54062 Fibre disc mounted with Low Profile Disc Pad Hub PN 28476 Disc Pad Face Plate PN 28443 and Disc Retainer Nut PN 02618 4 1 2 Std Guard PN 54062 ...

Page 8: ...ard PN 54062 1 8 Cut Off Wheel Type 27 4 1 2 Std Guard PN 54062 Quick Change Jumbo Flap Wheel 4 1 2 Jumbo Guard PN 54065 1 4 Quick Change Grinding Wheel Type 27 4 1 2 Standard Guard PN 54062 Type 27 Wheel Mounting Hardware and Usage ...

Page 9: ...ng a warranty claim within 1 year from the date of purchase For additional assistance call 1 800 362 3550 Product Repair after Warranty Has Expired Repair of 3M Abrasive Power tools that are not under warranty is available through 3M or a 3M Authorized Tool Repair Representative Contact your 3M Abrasive Power Tool Distributor for details or call 1 800 362 3550 For 3M Product Information Call 800 3...

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