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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 infl uence 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 fl ying 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 (fl anges) and wheel arbors supplied by 3M.
•  Never use this tool with Type 1 wheels or cut-off wheels.
•  Prior to use, or if dropped or jammed, inspect wheel retainers and wheel arbors and abrasive product for possible chips, cracks or other damage, and insure the 

abrasive product is correctly secured. If damaged, or if safety labels cannot be read, replace with new abrasive product, wheel retainers, wheel arbors, and/or 
labels available from 3M.

•  Never use a damaged grinder until it has been repaired.
•  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.
•  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 wheels in a grinder tool which is unguarded.
•  Keep hands, hair, and clothing away from the cutting part of the tool.
•  Wear suitable protective gloves while operating tool.
•  Do not touch the rotating parts during operation for any reason.
•  Do not force tool or use excessive force when using tool.

To reduce the risks associated with vibration:

•  If any physical hand/wrist discomfort is experienced, work should be stopped promptly to seek medical attention. Hand, wrist and arm injury may result from 

repetitive work, motion and overexposure to vibration.

To reduce the risks associated with loud noise:

•  Always wear hearing protection while operating this tool. Follow your employer’s safety policy or local/national standards for personal protective equipment 

requirements

To reduce the risks associated with fi re or explosion:

•  Do not operate the tool in explosive atmospheres, such as in the presence of fl ammable liquids, gases, or dust. The abrasives are able to create sparks when 

working material, resulting in the ignition of the fl ammable dust or fumes.

•  Refer to MSDS of material being worked as to potential for creating fi re or explosion hazard.

To reduce the risks associated with hazardous dust ingestion or eye/skin exposure:

•  Use appropriate respiratory and skin protection, or local exhaust as stated in the MSDS of the material being worked on.

To reduce the risks associated with hazardous voltage:

•  Do not allow this tool to come into contact with electrical power sources as the tool is not insulated against electrical shock.

CAUTION

To reduce the risks associated with whipping or hazardous pressure/rupture:

•  Ensure supply hose is oil resistant and is properly rated for required working pressure.
•  Do not use tools with loose or damaged air hoses or fi ttings.
•  Be aware that incorrectly installed hoses and fi ttings might unexpectedly come loose at any time and create a whipping/impact hazard.

To reduce the risks associated with fl ying off of accessory parts:

•  Use care in attaching abrasive product and mounting hardware; following the instructions to ensure that they are securely attached to the tool before use.
•  Never point this product in the direction of yourself or another person, or start tool unintentionally.
•  Never over-tighten accessory fasteners.

WARNING

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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