3M 20244 User manual

3M 11/4in. Mini Orbital 1 Revision 053008
Intended Use
MINI RANDOM ORBITAL SANDER MANUAL
8,000 RPM 11/4in (32 mm)
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 product 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 backup pad and appropriate abrasive for sanding small defects in
metals, wood, stone, plastics and other materials. It should only be used for such sanding applications and within its 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.
Damp application using water or water-solvent mixture is acceptable, but only when care is exercised to avoid injury due to splashing of
liquid. Also, careful cleaning of tool is necessary following each use of product in damp application.
Do not use back-up pads that have a Max RPM or Max OPM less than 8,000. Never use back-up pads that have a weight and/or size
different than what the tool was specifically designed for.
To reduce the risk of all hazards associated with this product:
• Read, understand and follow the safety information contained in these instructions prior to the use of this tool.
• Only personnel who are properly trained should be allowed to service this tool.
• Always wear protection for eyes, ears and respiratory protection while operating this product. Follow ANSI Z87.1 or
local/national standards for eyewear and other personal protective equipment requirements.
• Practice safety requirements. Work alert, wear proper attire; never operate tools under the influence of alcohol or drugs or in a
manner inconsistent with its intended use.
To reduce the risks associated with accessory rupture or disintegration:
• Never exceed marked maximum input pressure (90psi / .62Mpa / 6.2Bars).
• Use care in attaching back-up pad; follow the instructions to ensure that it is securely attached to the tool before use.
• Never free spin the tool or otherwise allow it to be started unintentionally; particularly during damp application.
• Never point this product in the direction of yourself or another person.
To reduce the risk associated with loud noise:
• Immediately discontinue use of product if its noise reduction muffler system has been damaged or is otherwise not functioning
properly. Have product repaired before placing back into use.
To reduce the risk associated with vibration emissions during use of product:
• If any physical hand/wrist discomfort is experienced, stop work promptly and seek medical attention. Hand, wrist and arm injury
may result from repetitive work, motion and overexposure to vibration.
WARNING
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:

3M 11/4in. Mini Orbital 2 Revision 053008
Parts Page
CAUTION!
To reduce the risk associated with pneumatic pressure and other mechanical hazards , including skin cuts due to contact with
abrasive media::
• Keep hands, hair and clothing away from the working end of the tool.
• Do not touch the rotating parts during operation for any reason.
• Replace backup pad at normal intervals according to instructions.
• Never operate this tool without all guards or safety features in place and in proper working order.
• Be aware that incorrectly installed hoses and fittings might unexpectedly come loose at any time and create a whipping/impact hazard.
• If you notice any abnormal noise or vibration when operating the product, immediately discontinue its use and inspect for worn
or damaged backup pad. Replace any damaged parts. If abnormal noise or vibration still exists, return to the manufacturer for
service or repair. Refer to warranty instructions.
To reduce the risk associated with electrical shock and/or explosion:
• Do not allow this tool to contact electrical power sources as the tool is not insulated against electrical shock.
• Do not operate the tool in or near explosive materials, such as flammable liquids, gases or excessive airborne dust. The tool/
abrasives can create sparks when working material, resulting in the ignition of the flammable dust or fumes.
NOTES
DWG SCALE 1 : 3 1.
5
4
3
2
1
7
6
8
9
10
12
13
14
15
16
11
17
18
20
19
21
23
24
28
27
26
25
29
30
31
32
22
3M 1 1/4 PAD
33
34
35
36
37
38
39
40
41
REVISION RECORD
R DESCRIPTION / DATE
A
RELEASED FOR PRODUCTION
RED 04/22/08 PWH 04/22/08
B
ITEM31 XPA0380 WAS XPA0014 PER
CUSTOMER REQUEST.
RED 04/28/08 PWH 04/28/08
C
ITEM 41 WAS NOT ON
RED 05/27/08 PWH 05/27/08
ITEM
TORQUE SETTING
Nm (in.-lbs.)
12 6.2 - 7.3 (55 - 65)
24 1.8 - 2.3 (16 - 20)
25 6.8 - 8.1 (60 - 72)
IT P/N DESCRIPTION QTY
1 XPA0040 EXTERNAL RETAINING RING 1
2 XPA0021 10 X 26 X 8 BEARING - 2 SHIELDS 1
3 XPB0017 REAR ENDPLATE 1
4 XPA0005 CYLINDER ASSEMBLY 1
5 XPA0042 5 mm x 2.0 mm O-RING 1
6 XPB0005 MACHINED ROTOR 1
7 XPA0010 VANE 5
8 XPA0041 3 mm x 13 mm WOODRUFF KEY 1
9 XPB0016 FRONT ENDPLATE 1
10 XPA0019 12 X 28 X 8 BEARING - 2 SHIELDS 1
11 XPA0045 39.4 mm x 3.1 mm O-RING 1
12 XPA0001 LOCK RING 1
13 XPB0405 MINI 8,000 RPM X 3/16 ORBIT, SHAFT BALANCER 1
14 XPA0122 FILTER 1
15 XPA0121 DUCKBILL CHECK VALVE 1
16 XPA0120 VALVE RETAINER 1
17 XPA1873 LEVER FOR 3M 12,000 RPM ROS 5 mm (3/16 in) ORBIT 1
18 XPB0321 GRIP 2 3/4 in. PMS RED 485 1
18 XPB0320 GRIP 2.5 in PMS RED 485 OPT
18 XPB0322 GRIP 3 in. PMS RED 485 OPT
19 XPA1872 MINI HOUSING FOR 3M, MACHINED 1
20 XPA0031 LEVER SPRING PIN 1
21 XPA0015 VALVE SLEEVE 1
22 XPA0584 INTERNAL MUFFLER 1
23 XPA0068 MUFFLER INSERT 1
24 XPA0166 MUFFLER HOUSING 1
25 XPA0013 1/4-18 NPT INLET BUSHING ASSEMBLY 1
26 XPA0014 VALVE SPRING 1
27 XPA0007 VALVE 1
28 XPA0009 VALVE SEAT 1
29 XPA0008 VALVE STEM ASSEMBLY 1
30 XPA0043 9 mm x 1.5 mm O-RING 1
31 XPA0380 SPEED CONTROL 2
32 XPA0039 INTERNAL RETAINING RING 1
33 XPA0107 .394 in. (10.0 mm) RETAINING RING 1
34 XPA0149 10 x 19 x 5 BEARING - NO SEALS/SHIELDS 1
35 XPA0199 SPACER, 14.5 ID x 18.5 OD x 0.2 THK 1
36 XPA0150 10 x 19 x 5 BEARING, 2 SEALS 1
37 XPA0108 SHIM, 10.1 ID x 14.0 OD x 0.2 THK 1
38 XPA0109 BELLEVILLE WASHER, 12.2 ID x 19.0 OD x 1.1 HT 1
39 XPA0119 19.1 mm RETAINING RING 1
40 XPB0406 SPINDLE 1
41 XPB0442 HANGER - 485C RED 1
PARTS PAGE FOR 3M
8,000 RPM 3/16 MINI ROS
XPC0314
P/N
TITLE
DRWN BY / DATE
NA
MATERIAL
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE
PROPERTY OF X'POLE PRECISION TOOLS INC. ANY REPRO-
DUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF X'POLE PRECISION TOOLS INC. IS PROHIBITED.
CKD BY / DATE
ENG APP / DATE
STD TOL
.X +/-
.XX +/-
.XXX +/-
XX/XX +/-
ANGLES +/-
NA
NA
NA
NA
NA
X'POLE
PRECISION
TOOLS INC.
RED
04/22/08
PWH
04/22/08

3M 11/4in. Mini Orbital 3 Revision 053008
Parts List
Item Part Number Description Qty
1 3MA0040 RETAINING RING 1
2 3MA0021 BEARING - 2 SHIELDS 1
3 3MB0017 REAR ENDPLATE 1
4 3MA0005 CYLINDER ASSEMBLY 1
5 3MA0042 O-RING 1
6 3MB0005 ROTOR 1
7 3MA0010 VANE 5
8 3MA0041 WOODRUFF KEY 1
9 3MB0016 FRONT ENDPLATE 1
10 3MA0019 BEARING - 2 SHIELDS 1
11 3MA0045 O-RING 1
12 3MA0001 LOCK RING 1
13 3MB0405 SHAFT BALANCER 1
14 3MA0122 FILTER 1
15 3MA0121 DUCKBILL CHECK VALVE 1
16 3MA0120 VALVE RETAINER 1
17 3MA1873 LEVER 1
18 3MB0321 GRIP 2 3/4 in. 1
18 3MB0320 GRIP 2.5 in. OPT
18 3MB0322 GRIP 3 in. OPT
19 3MA1872 MINI HOUSING 1
20 3MA0031 LEVER SPRING PIN 1
21 3MA0015 VALVE SLEEVE 1
22 3MA0584 INTERNAL MUFFLER 1
23 3MA0068 MUFFLER INSERT 1
24 3MA0166 MUFFLER HOUSING 1
25 3MA0013 INLET BUSHING ASSEMBLY 1
26 3MA0014 VALVE SPRING 1
27 3MA0007 VALVE 1
28 3MA0009 VALVE SEAT 1
29 3MA0008 VALVE STEM ASSEMBLY 1
30 3MA0043 O-RING 1
31 3MA0380 FLUSH SPEED CONTROL 1
32 3MA0039 INTERNAL RETAINING RING 1
33 3MA0107 RETAINING RING 1
34 3MA0149 BEARING - NO SEALS/SHIELDS 1
35 3MA0199 SPACER 0.2 THK 1
36 3MA0150 BEARING, 2 SEALS 1
37 3MA0108 SHIM 0.2 THK 1
38 3MA0109 BELLEVILLE WASHER 1
39 3MA0119 RETAINING RING 1
40 3MB0406 SPINDLE 1
41 3MB0442 HANGER 1

3M 11/4in. Mini Orbital 4 Revision 053008
Operating 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 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 distribu-
tor. 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 or 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 15744:2002.
** Declared vibration levels in accordance with EN12096; measurements carried out in accordance with standard EN ISO 8662-8:1997
except that feed force was reduced to 7.5N +/- 2.5N due to the impracticality of operating this small tool at 30N +/- 5N as stated in the
standard.
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 scenerios. Values measured in a particular work place may be higher than the declared values.
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.
Orbit Pad
Face Vacuum Type Pad Type
Model
Number
Pad Part
Number
Product Net
Wt kg (lb)
Height mm
(in.)
Length mm
(in.)
*Noise
Level dBA
Pressure
(Power)
**Vibration
Level m/s2
(ft/s2)
**Uncertainty
K
m/s2
5.0 mm
(3/16 in.) Stikit™ Non Vacuum Roloc™ 20244 02345 0.45 (1.0) 84.5 (3.32) 120.0 (4.72) 73 (80) <2.5 (<8.2) n/a
Recommended Airline Recommended Maximum Air Pressure
Size - Minimum Hose Length
10 mm 3/8 in 8 meters 25 feet Maximum Working Pressure 6.2 bar 90 psig
Recommended Minimum
Product Conguration and Specications:
8,000 RPM, 11/4in. (32 mm) Mini Orbital Sander

3M 11/4in. Mini Orbital 5 Revision 053008
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. Make sure the tool is disconnected from the air supply.
Select a suitable abrasive and secure it to the back-up
pad. Be careful to center the abrasive on the back-up
pad.
3. Always wear required safety equipment when using this
tool.
4. When sanding always start the tool on the workpiece.
This will prevent gouging due to excess speed of the
abrasive. Stop air flow to the tool as it is removed from
the workpiece.
5. Always remove the air supply to the sander before fitting,
adjusting or removing the abrasive or back-up pad.
6. Always adopt a firm footing and grip and be aware of
torque reaction developed by the sander.
7. Use only 3M approved spare parts.
8. Always ensure the material being worked is firmly fixed to
avoid movement.
9. 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.
10. Do not exceed maximum recommended air pressure.
Use safety equipment as recommended.
11. Prior to installing any sanding or polishing accessory,
always check that it’s marked maximum operating speed
is equal or higher than the rated speed of this tool.
12. 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.
13. This tool is not protected against hazards inherent in
grinding and cutting operations, and no such accessories
should ever be attached.
14. 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 immedi-
ately to avoid contact with moving tool parts.
15. Keep hands clear of the spinning pad during use.
16. If the tool appears to malfunction, remove from use
immediately and arrange for service and repair.
17. Do not allow the tool to free spin without taking
precautions to protect any persons or objects from the
loss of the abrasive or pad ruptures.
18. 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.
3M™ Back-Up Pads
3M back-up pads are perfectly mated for use on the 3M Sander.
Constructed from premium, industrial-quality materials, 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.
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 Back-up
Pad to Random Orbital Sander
1. Disconnect air line from sander.
2. Remove old back-up pad from sander. Hold the sander spindle
while turning the back-up pad counter clockwise.
3. After the old back-up 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. Secure the sander spindle by hand and tighten the new back-
up pad securely to the tool.
Description Part
Number
Finesse-it Roloc™ Sanding Pad, Blue Vinyl Face, 11/4in. 02345
Stikit™ Roloc™ Disc Pad, 11/4x 5/16 in. 02727
Finesse-it Roloc™ Sanding Pad, Firm, 11/4in. 13442
Finesse-it Roloc™ Sanding Pad, Vinyl Face, 11/4in. 02511
Hookit™ II Roloc™ Disc Pad, 11/4dia. 02787
Hookit™ Roloc™ Disc Pad, 11/16 x 5/16 in. 67415
See 3M ASD Accessory catalog 61-5002-8098-9 for additional
Back-Up Pads and Accessories.

3M 11/4in. Mini Orbital 6 Revision 053008
Abrasive Systems Division
3M Center, Building 223-6N-02
St. Paul, MN 55144-1000
www.3M.com/abrasives
© 3M 2008
3M, Roloc, Stikit and Hookit are trademarks of 3M Company.
34-8701-2497-0
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 applica-
tion, 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 pur-
chase. 3M MAKES NO OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FIT-
NESS 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, non-lubrication, improper operating environment, improper
utilities, operator error or misuse, alteration or modification, mishan-
dling, 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 consequen-
tial, 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.
Product Repair after Warranty Has Expired
3M does not offer repair service for product out of warranty.