3M 28363 User manual

3M 3 in. Random Orbital Polisher 1 Revision 102309
3M 3 in. Random Orbital Polisher 1 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 in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 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

3M 3 in. Random Orbital Polisher 1 Revision 102309
3M 3 in. Random Orbital Polisher 1 Revision 102309 3M 3 in. Random Orbital Polisher 2 Revision 102309
Parts Page
CAUTION!
To reduce the risks associated with skin abrasion, burns, cuts, or entrapment:
• Keep hands, hair, and clothing away from the rotating 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 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 ttings.
• Be aware that incorrectly installed hoses and ttings might unexpectedly come loose at any time and create a whipping/impact
hazard.
To reduce the risks associated with fly off of abrasive product or parts:
• Use care in attaching buff pad and disc pad; following the instructions to ensure that they are securely attached to the tool before
use.
• Never free spin the tool or otherwise allow it to be started unintentionally.
• Never point this product in the direction of yourself or another 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 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 ammable liquids, gases, or dust. The abrasives are
able to create sparks when working material, resulting in the ignition of the ammable dust or fumes.
• Refer to MSDS of material being worked as to potential for creating 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.

3M 3 in. Random Orbital Polisher 3 Revision 102309
3M 3 in. Random Orbital Polisher 3 Revision 102309
Parts List
NOTE: In anticipated applications, tool components are not intended to be replaced.
Product Configuration/Specifications: 11,000 RPM Random Orbital Polisher
ITEM 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

3M 3 in. Random Orbital Polisher 3 Revision 102309
3M 3 in. Random Orbital Polisher 3 Revision 102309 3M 3 in. Random Orbital Polisher 4 Revision 102309
Operating / Maintenance Instructions
Product Configuration/Specifications: 11,000 RPM Random Orbital Polisher
PRIOR TO THE OPERATION
The tool is intended to be operated as a hand held tool. It is always recommended that while using the tool, operators stand on a solid
oor, in a secure position with a rm grip and footing. Be aware that the tool can develop a torque reaction. See the section “SAFETY
PRECAUTIONS”.
Use a clean lubricated air supply that will give a measured air pressure at the tool of 6.2 bar (90 psig) when the tool is running with
the lever fully depressed. It is recommended to use an approved 10 mm (3/8 in) x 8 m (25 ft) maximum length airline. Connect the tool
to the air supply as shown in Figure 1. Do not connect the tool to the airline system without an easily accessible air shut off valve. It is
strongly recommended that an air lter, regulator and lubricator (FRL) be used as shown in Figure 1 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 tool
where the supply pressure exceeds the marked maximum of the tool. Details of such equipment can be obtained for your tool distributor.
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. Reconnect tool to the air supply and 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 (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 11203:1997 and EN ISO 3744:1997.
** Declared vibration levels in accordance with EN12096; measurements carried out in accordance with standard EN ISO 8662-8:1997.
IMPORTANT NOTE: The noise and vibration values stated in the table are from laboratory testing in conformity with stated codes and
standards and are not sufficient risk evaluation for all exposure scenarios. The actual exposure values and amount of risk or harm expe-
rienced to an individual is unique to each situation and depends upon the surrounding environment, the way in which the individual
works, the particular material being worked, work station design, as well as upon the exposure time and the physical condition of
the user. 3M™ cannot be held responsible for the consequences of using declared values instead of actual exposure values for any
individual risk assessment.
Model
Number
Pad Size
mm (in.)
Replace-
ment Disc
Pad Part
Number
Spindle
Thread
Product
Net Wt
kg (lb)
Length
mm (in.)
*Noise
Level dBA
Pressure
(Power)
**Vibration
Level m/s2
(ft/s2)
**Uncertainty
K
m/s2
28363 76 (3) 07652 5/16 in.-24 T 0.81
(1.79) 132 (5.20) 77 (82) 8.85 (29.0) 1.5
Recommended Airline
Size - Minimum
10 mm 3/8 in
Recommended Maximum
Hose Length
8 meters 25 feet
Air Pressure
Maximum Working Pressure 6.2 bar 90 psig
Recommended Minimum NA NA

3M 3 in. Random Orbital Polisher 5 Revision 102309
3M 3 in. Random Orbital Polisher 5 Revision 102309
Safety Precautions
1. Read all instructions before using this tool. All operators
must be fully trained in its use and aware of these safety
rules.
2. The tool RPM should be checked on a regular basis to
ensure proper operating speed.
3. Make sure the tool is disconnected from the air supply.
Select a suitable buff pad and secure it to the disc pad. Be
careful to center the buff pad on the disc pad.
4. Always wear required safety equipment when using this
tool.
5. When sanding/bufng always start the tool on the
workpiece. This will prevent gouging due to excess speed
of the buff pad. Stop air ow to the tool as it is removed
from the workpiece.
6. Always remove the air supply to the polisher before tting,
adjusting or removing the buff pad or disc pad.
7. Always adopt a firm footing and grip and be aware of
torque reaction developed by the polisher.
8. Use only 3M approved spare parts.
9. Always ensure the material being sanded is firmly fixed to
avoid movement.
10. Check hose and fittings regularly for wear. Do not carry
the tool by its hose; always be careful to prevent the tool
from being started when carrying the tool with the air
supply connected.
11. Dust can be highly combustible.
12. If tool is serviced or rebuilt check to ensure that the
maximum tool RPM is not exceeded and that there is no
excessive tool vibration.
13. Do not exceed maximum recommended air pressure.
Use safety equipment as recommended.
14. Prior to installing any sanding or polishing accessory,
always check that its marked maximum operating speed
is equal or higher than the rated speed of this tool.
15. 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.
16. This tool is not protected against hazards inherent in
grinding and cutting 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 arrange for service and repair.
20. Immediately release the start handle in the event of any
disruption of pressure; do not attempt to re-start until the
disruption has been corrected.
21. When tool is not in use, store in a clean, dry environment
free of debris.
22. Recycle or dispose of tool according to Local, State, and
Federal regulations.
Figure 1
Closed Loop Pipe System
Sloped in the direction of air flow
Drain Leg
Ball Valve
To Tool Station
Filter
Drain Valve
Regulator
Lubricator
Ball
Valve
Ball Valve Air Flow
Air Dryer
Air Compressor
and Tank
Air Hose
To Coupler
at or near Tool
Removing and Mounting
Disc and Bufng Pad to
Random Orbital Polisher
Buff pad
1. Disconnect air line from polisher.
2. Peel the old buff pad from the disc pad, by lifting an edge and
puling firmly upward.
3. Inspect the Hook material on the disc pad for damage or debris
clogging the hooks. Clean any debris or buffing compound from
the disc pad surface.
4. Attach a new buff pad to the disc pad, being careful to center it
as well as possible.
5. Apply hand pressure to engage the hooks and loops to rmly
seat the buff pad.
Disc pad
1. Disconnect air line from polisher.
2. Remove the hex wrench from the handle and use it to loosen
the disc pad bolt.
3. After the old disc pad has been removed from the polisher,
inspect the threaded hold in the spindle to ensure that the
threads are free of debris and undamaged.
4. Secure the new disc pad by tightening the disc pad bolt using
the hex wrench.
5. Replace the hex wrench into the handle seat.
An inadequately tightened disc pad bolt could cause the
threaded spindle to break causing damage to the tool and work
piece and possible injury to the operator or bystanders.
WARNING!

3M 3 in. Random Orbital Polisher 5 Revision 102309
3M 3 in. Random Orbital Polisher 5 Revision 102309 3M 3 in. Random Orbital Polisher 6 Revision 102309
Abrasive Systems Division
3M Center, Building 223-6N-02
St. Paul, MN 55144-1000
www.3M.com/abrasives
Product Use: All statements, technical information and
recommendations contained in this document are based
up on tests or experience that 3M believes are reliable.
However, many factors beyond 3M’s control can affect
the use and performance of a 3M product in a particular
application, including the conditions under which the 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.
Warranty and Limited Remedy: 3M warrants this tool
against defects in workmanship and materials under
normal operating conditions for one (1) year from the date
of purchase. 3M MAKES NO OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED
TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE OR ANY
IMPLIED WARRANTY ARISING OUT OF A COURSE
OF DEALING, CUSTOM OR USAGE OF TRADE. User is
responsible for determining whether the 3M tool is fit for a
particular 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, nonlubrication, improper operating
environment, improper utilities, operator error or misuse, 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 where prohibited by law, 3M
and seller will not be liable for any loss or damage arising from
the 3M product, whether direct, indirect, special, incidental or
consequential, regardless of the legal theory asserted, including
warranty, contract, negligence or strict liability.
Submitting a Warranty Claim: Contact your dealer when
submitting a warranty claim in accordance with the restrictions
listed above. Please note that all warranty claims are subject to
manufacturer’s approval. Be sure to keep your sales receipt in a
safe place. This must be submitted when filing a warranty claim,
within 1 year from the date of purchase. For additional assistance
call 1-800-362-3550.
© 3M 2009
3M is a trademark of 3M Company.