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3M 3 in. Random Orbital Polisher 

Revision 102309

3M 3 in. Random Orbital Polisher 

Revision 102309

Intended Use

RANDOM ORBITAL POLISHER INSTRUCTION MANUAL
3 in (76 mm) 11,000 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.

This pneumatic tool is intended for use in industrial locations, and used only by skilled, trained professionals in accordance with the 
instructions in this manual. This pneumatic tool is designed to be used with the disc pad and appropriate 3M foam buffing pads and 
with appropriate buffing or polishing compounds or appropriate 3M abrasive discs for sanding/buffing metals, wood, stone, plastics and 
other materials. It should only be used for such sanding/buffing applications and within marked capacity and ratings. Only accessories 
specifically recommended by 3M should be used with this tool. 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.

To reduce the risks associated with impact from abrasive product, disc pad, 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 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 shall not be operated in the presence of bystanders.
• If you notice any abnormal noise or vibration when operating the tool, immediately discontinue its use and inspect for worn or 

damaged components. 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 safety features in place and in proper working order.
• Never over-ride or disable the safety features of the start-stop control such that it is in the on position.
• Make sure the tool is disconnected from its air source before servicing, inspecting, maintaining, cleaning, and before changing 

abrasive product.

• Prior to use, inspect abrasive product and accessories for possible damage. If damaged, replace with new abrasive product and 

accessories available from 3M.

• Only use accessories supplied or recommended by 3M.
• Never allow this tool to be used by children or other untrained people.
• Do not leave an unattended tool connected to air source.

Explanation of Signal Word Consequences

Indicates a potentially hazardous situation which, if not avoided, may result in death or serious injury
and/or property damage.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury and/or property damage.

WARNING:

CAUTION:

Original Instructions

WARNING

Summary of Contents for 28363

Page 1: ... 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 protective apparel taking into consideration the type of work bein...

Page 2: ...nother person or start tool unintentionally Never over tighten accessory fasteners 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 hearin...

Page 3: ...EM DESCRIPTION QTY 1 Motor Body 1 2 Pneumatic Motor Assembly 1 3 Locking Ring 1 4 Eccentric Set 1 5 Pad 75 mm 1 6 Disc Pad Bolt 1 7 Rubber Cover 1 8 Speed Regulation Knob 1 9 On Off lever with Safety Lock 1 10 On Off Spindle 1 11 Valve Gasket 1 12 Pneumatic Valve 1 13 Valve Spring 1 14 Inlet Air fitting 1 15 Silencer 1 16 Exhaust Conveyor OPT 17 Pin UNI ISO 8734 1 18 Side Covers 1 19 Hex Wrench 1 ...

Page 4: ...run tool slowly for a few seconds to allow air to circulate the oil If the tool is used frequently lubricate it on a daily basis or lubricate it if the tool starts to slow or lose power It is recommended 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...

Page 5: ...utting operations and no such accessories should ever be attached 17 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 18 Keep hands clear of the spinning pad during use 19 If the tool appears to malfunction remove from use immediately and ...

Page 6: ...icular purpose and suitable for user s application User must operate the tool in accordance with all applicable operating instructions safety precautions and other procedures stated in the operating manual to be entitled to warranty coverage 3M shall have no obligation to repair or replace any tool or part that fails due to normal wear inadequate or improper maintenance inadequate cleaning nonlubr...

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