RANDOM ORBITAL SANDER
INSTRUCTION MANUAL
127 mm (5 in) and 150 mm (6 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
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 a disc pad and appropriate abrasive for sanding metals,
wood, stone, plastics and other materials. It should only be used for such sanding 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 or Max OPM less than the tool Max RPM or Max OPM rating. Never use disc pads that have
a weight and/or size different than what the tool was specifically designed for.
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:
WARNING
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.
• Immediately discontinue use of tool if its noise reduction muffler system has been damaged or is otherwise not functioning
properly. Have tool repaired before placing back into use.
Original Instructions
3M™ 5 in & 6 in Random Orbital Sander
1
Revision 051210
Parts List
Item
1
3M Part Number
A0040
A0021
B0017
A0005
A0042
B0005
A0010
A0041
B0016
A0019
A0045
A0001
B0279
B0277
B0348
B0278
B0280
B0334
A0122
A0121
A0120
N/A
UPC
Description
Qty.
1
28113
28107
28173
28094
28115
28170
28099
28114
28172
28106
28118
28093
28180
28178
30325
28179
28181
28184
28132
28131
28130
N/A
EXTERNAL RETAINING RING
BEARING - 2 SHIELDS
2
1
3
REAR ENDPLATE
1
4
CYLINDER ASSEMBLY
1
5
5 mm x 2 mm O-RING
1
6
ROTOR
1
7
VANE
5
8
WOODRUFF KEY
1
9
FRONT ENDPLATE
1
10
11
12
13
BEARING - 2 SHIELDS
1
39.4 mm x 3.1mm O-RING
1
LOCK RING
1
5 in x 3/32 in ORBIT SHAFT BALANCER
5 in x 3/16 in ORBIT SHAFT BALANCER
5 in x 5/16 in (8.0 mm) ORBIT ROS BALANCER
6 in x 3/16 in ORBIT SHAFT BALANCER
6 in x 3/32 in ORBIT SHAFT BALANCER
6 in x 5/16 in (8 mm) ORBIT SHAFT BALANCER
FILTER
1
1
1
1
1
1
14
15
16
17
18
19
20
21
22
23
1
DUCKBILL CHECK VALVE
VALVE RETAINER
1
1
N/A
1
A0938
A0016
A0017
A0018
B0018
A1351
A1352
A1447
A0031
20342
20343
20344
A0015
A1330
A0008
A0043
B0014
A0039
A1346
A1347
A1348
A0022
N/A
28148
28103
28104
28105
28174
28163
28164
28169
28109
20342
20343
20344
28102
28150
28097
28116
28171
28112
28158
28159
28160
28108
N/A
DOUBLE ROW ANGULAR CONTACT BEARING - SEAL
SPACER 12.1 mm ID x 18.0 mm OD x 0.2 mm THK
BELLEVILLE WASHER
1
1
1
RETAINING RING
1
SPINDLE
1
LEVER FOR 2.5 mm (3/32 in) ORBIT
LEVER FOR 5.0 mm (3/6 in) ORBIT
LEVER FOR 8 mm (5/6 in) ORBIT
LEVER SPRING PIN
1
1
1
24
25
1
GRIP 2.5 in
OPT
1
GRIP 2.75 in
GRIP 3 in
OPT
1
26
27
28
29
30
31
32
33
VALVE SLEEVE
HOUSING
1
VALVE STEM ASSEMBLY
1
9.0 mm x 1.5 mm O-RING
1
SPEED CONTROL
1
INTERNAL RETAINING RING
5/6 in NON-VACUUM SHROUD
5/6 in SHROUD
1
1
1
Ø 6 In CLEAN SANDING ROS DISC PAD SHROUD
24 mm PAD WRENCH
1
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
1
DISC PAD SUPPLIED WITH EACH TOOL (TYPE DETERMINED BY MODEL)
INTERNAL MUFFLER
1
A0062
A0068
A0166
A0009
A0007
A0014
A0013
A0044
A0006
A0778
A1338
N/A
28121
28122
28138
28098
28096
28101
28100
28117
28095
28146
28156
N/A
1
MUFFLER INSERT
1
MUFFLER HOUSING
1
VALVE SEAT
1
VALVE
1
VALVE SPRING
1
INLET BUSHING ASSEMBLY
14 mm x 1.5 mm O-RING
1
2
SGV RETAINER
1
1 in/28 mm HOSE SEAL
1
ASSEMBLY FOR 1 in/28 mm HOSE SGV SWIVEL EXHAUST FITTING
TAG W/ INSTRUCTION FOR 1 in/28 mm HOSE SEAL
3/4 in/19 mm HOSE SEAL
1
1
N/A
N/A
N/A
N/A
1
N/A
N/A
ASSEMBLY FOR 3/4 in/19 mm HOSE SGV SWIVEL EXHAUST FITTING
SGV SKIRT/SHROUD ADAPTER
VACUUM HOSE, 1 in ID x 6 ft
VACUUM HOSE ADAPTOR, 1 in Internal Hose Thread
ASSEMBLY FOR ROS CV 1 in/28 mm SWIVEL EXHAUST
FLANGED NUT
A1333
28301
28302
A1343
A0048
A1345
A0047
A0769
A1434
20338
20452
20453
20341
20209
28153
28301
28302
28157
28120
28157
28119
28145
28303
20338
20452
20453
20341
20209
OPT
OPT
1
1
ASSEMBLY FOR ROS CV 3/4 in. SWIVEL EXHAUST
WASHER
OPT
1
SCREW
1
VACUUM BAG COVER (CLOTH)
VACUUM BAG INSERT (PAPER)
CLEAN SANDING FILTER BAG
FILTER BAG ADAPTOR
OPT
OPT
1
1
VACUUM HOSE FITTING ADAPTOR, 1 in Internal Hose Thread x 1-1/2 in OD Hose Adpator
RANDOM ORBITAL SANDER AIR LINE EXTENSION, 3/8 in x 4 ft
OPT
OPT
3M™ 5 in & 6 in Random Orbital Sander
3
Revision 051210
Product Configuration/Specifications: 12,000 RPM Random Orbital Sander
Note: All Vacuum machines use Ø 28 mm (1 in.) Vacuum Hose Fittings.
**Uncertainty
K
*Noise Level
dBA Pressure
(Power)
**Vibration
Vacuum
Type
Pad Size
mm (in)
Model
Number
Pad Part Product Net Wt Height mm
Length mm
(in)
2
Orbit
Pad Face
Stikit™
Pad Type
Level m/s
Number
kg (lb)
(in)
2
2
(ft/s
)
m/s
127 (5)
150 (6)
127 (5)
150 (6)
150 (6)
127 (5)
150 (6)
150 (6)
127 (5)
150 (6)
127 (5)
150 (6)
127 (5)
150 (6)
150 (6)
127 (5)
150 (6)
127 (5)
150 (6)
127 (5)
150 (6)
20320
20328
20321
20329
20463‡
20322
20330
20464‡
20317
20325
20457‡
20460‡
20318
20326
20461‡
20455‡
20458‡
20456‡
20459‡
20319
20327
20351
20354
20353
20356
20465
20353
20356
20465
20351
20354
20352
20355
20353
20356
20465
20442
20454
20442
20454
20353
20356
0.72 (1.59)
0.76 (1.68)
0.78 (1.72)
0.83 (1.83)
0.83 (1.83)
0.80 (1.76)
0.86 (1.90)
0.86 (1.90)
0.75 (1.65)
0.79 (1.74)
0.75 (1.65)
0.79 (1.74)
0.81 (1.79)
0.86 (1.90)
0.86 (1.90)
0.81 (1.79)
0.86 (1.90)
0.83 (1.83)
0.89 (1.96)
0.83 (1.83)
0.89 (1.96)
82.9 (3.26) 148.4 (5.84)
82.9 (3.26) 161.1 (6.34)
84.5 (3.33) 209.5 (8.25)
84.5 (3.33) 222.2 (8.75)
84.5 (3.33) 222.2 (8.75)
84.5 (3.33) 217.9 (8.58)
84.5 (3.33) 230.6 (9.08)
84.5 (3.33) 230.6 (9.08)
82.9 (3.26) 149.6 (5.89)
82.9 (3.26) 162.3 (6.39)
82.9 (3.26) 149.6 (5.89)
82.9 (3.26) 162.3 (6.39)
84.5 (3.33) 210.8 (8.30)
84.5 (3.33) 223.5 (8.80)
84.5 (3.33) 223.5 (8.80)
84.5 (3.33) 210.8 (8.30)
84.5 (3.33) 223.5 (8.80)
84.5 (3.33) 219.2 (8.63)
77 (83)
83 (89)
77 (83)
83 (89)
83 (89)
84 (95)
83 (92)
83 (92)
80 (88)
79 (83)
80 (88)
79 (83)
81 (88)
77 (85)
77 (85)
81 (88)
77 (85)
85 (93)
83 (92)
85 (93)
83 (92)
3.1 (10.2)
3.3 (10.8)
3.1 (10.2)
3.3 (10.8)
3.3 (10.8)
3.1 (10.2)
3.1 (10.2)
3.1 (10.2)
3.2 (10.5)
3.3 (10.8)
3.2 (10.5)
3.3 (10.8)
3.2 (10.5)
3.3 (10.8)
3.3 (10.8)
3.2 (10.5)
3.3 (10.8)
3.2 (10.5)
3.3 (10.8)
3.2 (10.5)
3.3 (10.8)
1.55
1.65
1.55
1.65
1.65
1.55
1.55
1.55
1.60
1.65
1.60
1.65
1.60
1.65
1.65
1.60
1.65
1.60
1.65
1.60
1.65
Non
Vacuum
Low Profile
Central
Vacuum
Clean
Sanding
2.5 mm
(3/32 in)
Hookit™
Self-Gen
Vacuum
Clean
Sanding
Stikit™
Non
Vacuum
Low Profile
Hookit™
Clean
Sanding
Hookit™
Central
Vacuum
5 mm
(3/16 in)
Stikit™
Stikit™
Low Profile
Low Profile
Self-Gen
Vacuum
84.5 (3.33)
231.9 (9.1)
84.5 (3.33) 219.2 (8.62)
Self-Gen
Vacuum
Clean
Sanding
84.5 (3.33)
84.5 (3.33)
231.9 (9.1)
231.9 (9.1)
Hookit™
Stikit™
150 (6)
20462‡
20465
20351
0.89 (1.96)
0.76 (1.68)
83 (92)
3.3 (10.8)
1.65
N/A
Non
Vacuum
Low Profile
20253
82.9 (3.26) 150.37 (5.92)
82.9 (3.26) 212.08 (8.35)
82.9 (3.26) 220.66 (8.68)
82.9 (3.26) 163.42 (6.45)
74 (83))
<2.5 (<8.2)
Central
Vacuum
20254/
†63378
127 (5)
0.82 (1.81)
0.84 (1.85)
0.79 (1.74)
77 (85)
91 (99)
77 (85)
<2.5 (<8.2)
<2.5 (<8.2)
3.3 (10.8)
N/A
N/A
1.65
Clean
Sanding
Hookit™
Stikit™
20353
20354
Self-Gen
Vacuum
20255/
†63379
8 mm
(5/16 in)
Non
Vacuum
Low Profile
20324
20213
63373†
20208
20356
20465
20356
0.87 (1.92)
0.87 (1.92)
0.90 (1.98)
82.9 (3.26) 224.8 (8.85)
82.9 (3.26) 224.8 (8.85)
82.9 (3.26) 233.4 (9.18)
75 (85)
75 (85)
82 (92)
3.5 (11.4)
3.5 (11.4)
3.4 (11.1)
1.75
1.75
1.70
Central
Vacuum
150 (6)
Clean
Sanding
Hookit™
Self-Gen
Vacuum
63372†
20465
0.90 (1.98)
82.9 (3.26) 233.4 (9.18)
82 (92)
3.4 (11.1)
1.70
† Available only in Europe.
‡ Available only in APAC.
* Declared noise levels; measurements carried out in accordance with standard EN ISO 15744:2008.
** 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
experienced 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.
Operating / Maintenance Instructions
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 floor, in a secure position with a firm grip and footing. Be aware that the sander 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 filter, regulator and lubricator (FRL) be used as shown in Figure 1as 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.
3M™ 5 in & 6 in Random Orbital Sander
4
Revision 051210
Recommended Airline
Size - Minimum
Recommended Maximum
Hose Length
Air Pressure
Maximum Working Pressure 6.2 bar 90 psig
Recommended Minimum
NA
NA
10 mm
3/8 in
8 meters
25 feet
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 abrasive and secure it to the disc pad. Be
careful to center the abrasive on the disc pad.
4. Always wear required safety equipment when using this
tool.
5. When sanding/buffing always start the tool on the
workpiece. This will prevent gouging due to excess speed
of the buff pad. Stop air flow to the tool as it is removed
from the workpiece.
6. Always remove the air supply to the sander before fitting,
adjusting or removing the abrasive or disc pad.
7. Always adopt a firm footing and grip and be aware of
torque reaction developed by the sander.
Closed Loop Pipe System
Sloped in the direction of air flow
Drain Leg
Ball Valve
To Tool Station
Filter
Ball
Valve
Regulator
Lubricator
Ball Valve
Air Flow
Air Dryer
Drain Valve
Air Hose
To Coupler
at or near Tool
8. Use only 3M approved spare parts.
9. Always ensure the material being sanded is firmly fixed to
avoid movement.
Air Compressor
and Tank
Figure 1
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.
3M™ Disc Pads
3M Disc Pads are perfectly mated for use on the 3M Sander.
Constructed from premium, industrial-quality materials and
featuring a riveted fiberglass and steel hub with molded urethane,
their durability and precise construction are the ideal complement
to the performance of the 3M Sander. See Product Configuration/
Specifications table for the correct replacement pad for a
particular model. The following chart is a sample of products
offered.
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.
Description
Part number
20351
3M™ Stikit™ Low Profile Disc Pad 5 in., non-vacuum
3M™ Hookit™ Low Profile Disc Pad 5 in., non-vacuum
20352
20353
3M™ Hookit™ Clean Sanding Low Profile Disc Pad 5 in., vacuum
3M™ Stikit™ Low Profile Disc Pad 6in., non-vacuum
3M™ Hookit™ Low Profile Disc Pad 6 in., non-vacuum
3M™ Hookit™ Clean Sanding Low Profile Disc Pad 6 in., vacuum
3M™ Stikit™ Low Profile D/F Disc Pad 5 in., vacuum
3M™ Stikit™ Low Profile D/F Disc Pad 6 in., vacuum
20354
20355
20356
20442
20454
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.
3M™ Hookit™ Clean Sanding Low Profile Disc Pad-861 6 in., vacuum
20465
See 3M ASD Accessory catalog 61-5002-8098-9 for additional
Accessories.
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.
Removing and Mounting Disc Pad to Random
Orbital Sander
1. Disconnect air line from sander.
2. Remove old disc pad from sander by inserting the wrench,
supplied with the tool, between the rubber shroud and the
disc pad. Use the wrench to secure the sander spindle while
turning the disc pad counter clockwise.
3. After the old disc pad has been removed from the sander,
inspect the threaded hole in the spindle to ensure that the
threads are free of debris and undamaged.
4. Ensure that the phenolic washer is in place around the
threaded shaft of the new disc pad.
5. Secure the sander spindle with the wrench and tighten the
new disc pad securely to the tool.
WARNING
An inadequately tightened disc pad could cause the threaded
spindle to break causing damage to the tool and work piece and
possible injury to the operator or bystanders.
3M™ 5 in & 6 in Random Orbital Sander
5
Revision 051210
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 2010
Abrasive Systems Division
3M Center
St. Paul, MN 55144-1000
3M, Hookit and Stikit are trademarks of 3M Company.
34-8704-3111-0
3M™ 5 in & 6 in Random Orbital Sander
6
Revision 051210
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