3M Cordless Sander 20230 User Manual

3
Disc Sanders INSTRUCTIONS MANUAL – 2 in (50 mm) 20,000 RPM .33 HP,  
2 in (50 mm) 20,000 RPM .5 HP, 3 in (76 mm) 15,000 RPM 1 HP  
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 designed to be used with the sander adaptor, disc pad, and appropriate abrasive for sanding metals, wood, stone, plastics and other  
materials. Additionally, when used with the collet chuck it may also function as a Die Grinder. It should only be used for such sanding and die grinding 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.  
Do not operate tool in water or in an excessively wet application.  
Do not use back up pads that have a Max RPM less than the tool Max RPM rating.  
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 product, immediately discontinue its use and inspect for worn or damaged components  
(mounting hardware, abrasive product, etc). 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.  
• Do not remove or disable safety feature of on-off control device.  
• Make sure the tool is disconnected from its air source before servicing, inspecting, maintaining, cleaning, and before changing abrasive product.  
• Only use abrasive disc pads and other accessories supplied by 3M.  
• Prior to use, inspect abrasive product, disc pad, and other accessories for possible damage. If damaged, replace with new abrasive product and  
accessories available from 3M.  
Original Instructions  
1
 
Parts Page  
PARTS LIST FOR PT# 20230 & 25123, 20000 RPM, 2”, .33 HP DISC SANDER  
3M Part  
Fig. #  
14  
15  
16  
17  
18  
19  
20  
21  
Number Description  
06548  
06624  
06547  
06641  
06532  
06531  
06509  
06519  
06533  
Front End Plate  
Front End Plate Spacer  
Rotor  
Vane, Set of 3  
Cylinder  
Rear End Plate  
Ball Bearing  
Retaining Ring  
Housing Assembly  
(Includes Figures 23-32)  
Socket Head Cap Screw,  
4-40 (2)  
3M Part  
22  
Fig. #  
Number Description  
1
2
3
3
3
3
3
4
5
6
7
8
9
10  
06582  
06583  
06528  
06529  
06530  
06540  
06541  
06516  
06633  
06581  
06611  
06645  
06505  
06551  
Sander Adapter  
Collet Body  
Collet (1/4”)  
Collet (1/8”)  
Collet (3/16”)  
Collet (3 mm)  
Collet (6 mm)  
Collet Nut  
Lock Nut  
Output Shaft  
23  
06500  
24  
25  
26  
27  
28  
29  
30  
31  
06512  
06536  
06517  
06514  
06537  
06515  
06535  
06502  
O-Ring  
Speed Control Valve  
Spring  
Rubber Valve  
Valve Plunger  
O-Ring (2)  
Valve Body  
Screw 8-32 x 3/16”  
Pan Phil Mac  
Safety Lever Assembly  
Grip  
Silencer Pad  
O-Ring  
Washer  
Inlet Adapter  
Screen  
Ball Bearing  
Bevel Gear Set  
Needle Bearing  
Angle Head Assembly  
(Includes Figures 9 & 11)  
Grease Fitting  
Clamp Nut  
32  
33  
34  
35  
36  
37  
38  
39  
06538  
06606  
06539  
06513  
06525  
06534  
06623  
06586  
11  
12  
13  
06523  
06549  
06510  
Ball Bearing  
3/8” x 7/8” x 9/32”  
7/16” x 11/16” Wrench (2)  
3
 
Parts Page  
PARTS LIST FOR PT# 20231 & 25124, 20000 RPM, 2”, .5 HP DISC SANDER  
3M Part  
Fig. #  
Number Description  
10  
06580  
Angle Head Assembly  
(Includes Figures 9 & 11)  
Grease Fitting  
Clamp Nut  
Retaining Ring  
Ball Bearing  
Front End Plate  
Front End Plate Spacer  
Rotor  
Vane, Set of 5  
Cylinder Liner  
Rear End Plate  
Ball Bearing  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
06523  
06636  
06619  
06611  
06629  
06624  
06634  
06647  
06631  
06630  
06612  
06625  
06626  
06614  
06620  
06627  
06613  
06622  
06616  
06599  
06635  
06617  
06632  
06615  
06621  
06628  
06618  
06586  
Housing  
Trigger Valve Stem  
Compression Spring  
O-Ring  
Air Regulator  
Compression Spring  
Steel Ball  
3M Part  
Fig. #  
Number Description  
1
2
3
3
3
3
3
4
5
6
7
8
9
06582  
06583  
06528  
06529  
06530  
06540  
06541  
06516  
06633  
06581  
06611  
06645  
06505  
Sander Adapter  
Collet Body  
Pin  
Collet (1/4”)  
Collet (1/8”)  
Collet (3/16”)  
Collet (3 mm)  
Collet (6 mm)  
Collet Nut  
Housing Cover, .5 HP  
Paddle Assembly  
Roll Pin  
Muffler Material  
Disc Spring  
O-Ring  
Lock Nut  
Exhaust Deflector  
Inlet Bushing  
7/16” x 11/16”  
Wrench (2)  
Output Shaft  
Ball Bearing  
Bevel Gear Set  
Needle Bearing  
4
 
Parts Page  
PARTS LIST FOR PT# 20232 & 25125, 15000 RPM, 3”, 1 HP DISC SANDER  
3M Part  
Fig. #  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
Number Description  
06523  
06653  
06655  
06520  
06609  
06510  
06639  
06562  
06643  
06563  
06560  
06527  
Grease Fitting  
Angle Head Clamp Nut  
Lock Ring  
Pin, 1/8” x 1/4”  
O-Ring  
Ball Bearing 3/8” x 7/8” x 9/32”  
Front End Plate  
Rotor  
Vane, Set of 5  
Cylinder  
Rear End Plate  
Wave Washer  
.440” x .618” x .008”  
Ball Bearing  
Washer .251” x .468” x .063”  
Screw #8-32 x 3/8” But Hd Cap  
Housing  
Torr Pin, 3/16” x 7/8”  
O-Ring  
O-Ring  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
06508  
06567  
06568  
06638  
06558  
06543  
06511  
06556  
06501  
06598  
06642  
06559  
06566  
06557  
06552  
06553  
06554  
06555  
06608  
06604  
06605  
06586  
3M Part  
Number Description  
Fig. #  
1
2
3
3
3
3
3
4
5
6
7
8
9
10  
06582  
06583  
06528  
06529  
06530  
06540  
06541  
06516  
06578  
06591  
06507  
06646  
06505  
06637  
Sander Adapter  
Collet Body  
Collet (1/4”)  
Collet (1/8”)  
Collet (3/16”)  
Collet (3 mm)  
Collet (6 mm)  
Collet Nut  
Bearing Retainer  
Output Shaft  
Regulator  
Screw, 6-32 x 3/4” Set Soc Hex  
Housing Cover  
Lever  
Groove Pin, 1/8” x 7/8” Type E  
Warning Label  
Muffler  
Throttle Valve Seat  
Throttle Valve  
Taper Spring  
Ball Bearing  
Screen  
Spiral Bevel Gear Set  
Needle Bearing  
Angle Head Assembly  
(Includes Figures 9 & 11)  
O-Ring, 1/16” x 5/8” x 3/4”  
Rotatable Exhaust Deflector  
Inlet Bushing  
7/16” x 11/16” Wrench (2)  
5
 
Product Configuration/Specifications:  
Model  
Number  
** Vibration  
Level  
Configured as  
Grinder  
Collet  
Pad  
Type  
Pad Speed Power Product  
Height  
mm (in.) dBA Pressure  
(Power)  
*Noise Level ** Vibration ** Uncertainty K  
** Uncertainty K  
Configured as  
Grinder  
2
m/s  
Part RPM (hp)  
Net  
Wt.kg.  
(lb.)  
Level  
m/s (ft/s )  
2
2
2
m/s  
2
2
m/s (ft/s )  
7.57 (24.9)  
7.57 (24.9)  
7.41 (24.4)  
7.41 (24.4)  
4.87 (16.0)  
4.87 (16.0)  
20230 1/4”  
25123 6 mm  
20231 1/4”  
25124 6 mm  
20232 1/4”  
25125 6 mm  
2” Roloc  
Hard  
2” Roloc  
Hard  
3” Roloc  
Hard  
0.49 (1.08) 63.5 (2.5)  
0.49 (1.08) 63.5 (2.5)  
0.58 (1.28) 69.9 (2.75) 89.3 (100.9) 6.56 (21.6)  
0.58 (1.28) 69.9 (2.75) 89.3 (100.9) 6.56 (21.6)  
0.89 (1.97) 82.6 (3.25) 84.5 (95.1) 5.98 (19.7)  
0.89 (1.97) 82.6 (3.25) 84.5 (95.1) 5.98 (19.7)  
82.4 (94)  
82.4 (94)  
3.25 (10.7)  
3.25 (10.7)  
1.625  
1.625  
2.624  
2.624  
2.392  
2.392  
3.028  
3.028  
2.964  
2.964  
1.948  
1.948  
88746 20,000 0.33  
88746 20,000 0.5  
45091 15,000  
1
* 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 for disc sander  
application and EN ISO 8662-13:1997 for die grinder application. 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. 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.  
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”.  
Ensure that all abrasive articles are mounted concentrically on the supporting disc pad.  
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  
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 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.  
Recommended Airline  
Recommended Maximum  
Air Pressure  
Size - Minimum  
Hose Length  
25 feet  
10 mm  
3/8 in  
8 meters  
Maximum Working Pressure 6.2 bar  
90 psig  
Recommended Minimum  
NA  
NA  
Lubricate the angle head every 6-8 working hours with premium grease with the following properties:  
-High and low temperature performance  
-Shear stable  
-Anti-wear protection  
-Low viscosity base fluid for high speed application  
-Very low coefficient of friction  
Fuchs Renolit AX S2 or equal is recommended. Grease gun and grease available from your grease supplier.  
6
 
Closed Loop Pipe System  
Sloped in the direction of air flow  
Safety Precautions  
Drain Leg  
Ball Valve  
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 (at shift change).  
3. Make sure the tool is disconnected from the air supply. Attach the  
3M™ Roloc™ Disc Pad to the sander adaptor using the wrenches  
supplied with the tool. Select a suitable abrasive and secure it to the  
back up pad.  
4. Always wear required safety equipment when using this tool.  
5. When sanding always start the tool just prior to contacting the work  
piece. Stop air flow to the tool as it is removed from the work piece.  
6. Always remove the air supply to the sander before fitting, adjusting  
or removing the abrasive or disc pad.  
To Tool Station  
Filter  
Ball  
Valve  
Regulator  
Lubricator  
Ball Valve  
Air Flow  
Air Dryer  
Drain Valve  
7. Always adopt a firm footing and grip and be aware of torque  
reaction developed by the sander.  
8. Use only 3M approved spare parts.  
9. Always ensure the material being worked is firmly fixed to avoid  
movement.  
Air Hose  
To Coupler  
at or near Tool  
Air Compressor  
and Tank  
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. 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.  
12. Dust can be highly combustible.  
Figure 1  
3M™ Roloc™ Disc Pads  
3M™ Roloc™ Disc Pads are perfectly mated for use on the 3M Sander.  
Constructed from premium, industrial-quality materials and 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.  
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 it’s marked maximum operating speed is equal or higher than  
the rated speed of this tool.  
See 3M ASD Accessory catalog 61-5002-8098-9 and Fantastic Finishes & More  
catalog 61-5002-8097-1 for additional Disc Pads and Accessories.  
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, which require a guard, and no such grinding and  
cutting products 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.  
Removing the sander adaptor and installing the  
collet chuck  
1. Disconnect air line from tool.  
2. Using the wrenches supplied with the tool, secure the output shaft with one  
of the wrenches. Loosen the sander adaptor with the other wrench. Remove  
the sander adaptor and store in a safe place for use at another time.  
3. Thread the collet chuck supplied with the tool into the threaded hole vacated  
by the sander adaptor.  
4. Tighten the base of the collet chuck with the two wrenches.  
5. Loosen the collar of the chuck to allow the appropriate shank to be inserted  
(¼ in collet insert is used for ¼ in shanks, 6 mm collet insert is used for  
6 mm shanks).  
6. Insert shank completely into the collet and tighten with the two wrenches.  
An inadequately inserted shank could bend or break causing damage to the  
tool and work piece and possible injury to the operator or bystanders.  
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.  
7
 
Product Use: All statements, technical information and  
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, 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.  
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  
Product Repair after Warranty has Expired  
3M does not offer repair service for product out of warranty.  
3
Abrasive Systems Division  
3M Center, Building 223-6N-02  
St. Paul, MN 55144-1000  
© 3M 2008  
3M and Roloc are trademarks of 3M Company  
34-8701-2619-9  
8
 
Contact: Michelle Dumas  
Creator: deZinnia  
Spec # 34-8701-2619-9  
Structure: SS-12395  
Ink: Black  
Date: 07/23/08  
Version 1  
9
 

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