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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 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.
•  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 fire or explosion:

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

when working material, resulting in the ignition of the flammable dust or fumes.

•  Refer to MSDS of material being worked as to potential for creating fire 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 fittings.
•  Be aware that incorrectly installed hoses and fittings might unexpectedly come loose at any time and create a whipping/impact hazard.

To reduce the risks associated with flying 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 28403

Page 1: ...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 WARNING AVOID PROLONGED EXPOSURE TO VIBRATION 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 Pre...

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: ...ont Wear Plate 1 25 06562 Rotor 5 Slot 1 26 28979 Vane Kevlar 1 HP Set of 5 1 27 06563 Cylinder 1 Fig 3M PN Description Qty 28 28981 Rear Endplate 1 29 06508 Ball Bearing 1 4 x 5 8 x 0 1961 1 30 06567 Washer 0 251 x 0 468 x 0 063 1 31 06568 Screw 8 32 x 3 8 1 32 06609 O Ring 1 38 x 0 094 1 33 28977 Steel Housing 1 HP 1 34 06642 Lever Assembly 1 35 28980 Trigger Valve 1 36 28983 O Ring 1 37 06614 S...

Page 4: ...Spacer 1 22 06510 Ball Bearing 3 8 x 7 8 x 9 32 1 23 28992 Front End Plate 1 24 29004 Font Wear Plate 1 25 06562 Rotor 5 Slot 1 Fig 3M PN Description Qty 26 28979 Vane Kevlar 1 HP Set of 5 1 27 06563 Cylinder 1 28 28981 Rear Endplate 1 29 06508 Ball Bearing 1 4 x 5 8 x 0 1961 1 30 06567 Washer 0 251 x 0 468 x 0 063 1 31 06568 Screw 8 32 x 3 8 1 32 06609 O Ring 1 38 x 0 094 1 33 28977 Steel Housing...

Page 5: ...mmended that the air pressure at the tool be 6 2 bar 90 psig while the tool is running so the maximum RPM is not exceeded The tool can be run at lower pressures but should never be run higher than 6 2 bar 90 psig If run at lower pressure the performance of the tool is reduced Declared noise levels measurements carried out in accordance with standard EN ISO 15744 Declared vibration levels in accord...

Page 6: ...ssibility 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 spinning grinding wheel during use 17 If the tool appears to malfunction remove from use...

Page 7: ...read 5 8 11 EXT M10 1 25 INT Fibre Disc Mounting Accessories 3M PN UPC PN Description Size in 28442 28442 Disc Pad Hub For Short Shaft Tools 2 1 2 x 3 8 24 INT 28476 28476 Low Profile Disc Pad Hub 2 1 2 x 5 8 11 INT 28443 28443 Disc Pad Face Plate Ribbed Extra Hard Red 4 1 2 3M Fibre Discs and Accessories 3M Disc Pad Accessories Related Products Refer to ANSI B7 1 2000 Safety Requirements for Use ...

Page 8: ... 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 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 MOUNTING 3 8 CENTER HOLE TYPE 27 WHEELS Figure 1 Lower Flange for 3 8 CH Type 27 Wheels...

Page 9: ...Figure 6A Figure 6B Figure 7 Figure 8 5 8 11 threads per inch Spindle with Upper Flange properly mounted For Wheels less than 3 8 thick Lower Flange for 7 8 Type 27 Wheels properly mounted For Wheels 3 8 thick and Greater Lower Flange for Type 27 7 8 Center Hole Wheels Note 7 8 lip is facing the wheel Dual Size Flanges for 16 mm and 7 8 CH Wheels Side A 16 mm lip Side B 7 8 lip 7 8 lip 3 8 24 Spin...

Page 10: ...ce Plate Figure 11 Figure 12 Figure 13 Figure 9 Figure 10 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 Type 27 Wheel with 7 8 CH properly mounted to Upper Dual Size Flange Dual Size Lower Flange properly mounted with 7 8 CH Type 27 Wheel 5 8 11 Threads per inch Spindle 3M PN 28476 Low Profile Disc ...

Page 11: ...Nut is not required if a TN Quick Change disc is mounted Figure 16 Figure 17 Figure 18 Figure 14 Figure 15 3M PN 28442 Disc Pad Hub for Short Shaft Tools 3 8 24 INT 5 8 11 EXT NOTE 3 8 24 Tool Spindle Inside 5 8 11 Hub Spindle 3M PN 02618 Disc Retainer Nut 5 16 x 5 8 11 INT Fibre Disc with TH Quick Change Center 5 8 11 INT TN Quick Change Disc properly mounted Disc Retainer Nut properly mounted Di...

Page 12: ...alteration or modification mishandling lack of reasonable care or due to any accidental cause 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 Limitation of Liability Except for the limited remedy stated above and except to the extent prohibited by ...

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