3M C Series Instruction Manual Download Page 10

9

10

*  Declared noise levels; measurements carried out in accordance with standard EN ISO 15744.
# Declared vibration levels in accordance with ISO 20643 and 28927.

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.

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 in SAFETY PRECAUTIONS in.

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 (or equivalent 10 centistoke oil) into the air 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.

Product Configuration / Specifications

Operating / Maintenance Instructions

Model 

Number

Collet 

Maximum 

Rotational 

Speed 

(RPM)

Product Net 

Wt kg (lb)

Height mm 

(in)

Length mm 

(in)

*Noise Level 

dBA Pressure 

(Power)

#Vibration 

Level m/s

2

 

(ft/s

2

)

#Uncertainty 

K m/s

2

(ft/s

2

)

Series 

Designation

28330 
28345

1/4 in  
6 mm

18,000

0.58 (1.27) 
0.58 (1.27)

69.9 (2.75) 
69.9 (2.75)

178 (7) 
178 (7)

89.2 (100.8) 
89.2 (100.8)

2.13 (6.99) 
2.13 (6.99)

0.19 (0.62) 
0.19 (0.62)

C

28331 
28346

1/4 in  
6 mm

18,000

0.78 (1.72) 
0.78 (1.72)

69.9 (2.75) 
69.9 (2.75)

274 (10.8) 
274 (10.8)

82.9 (94.5) 

89.2 (100.8)

2.18 (7.15) 
2.18 (7.15)

0.24 (0.79) 
0.24 (0.79)

C

28332 
28347

1/4 in  
6 mm

4,000

0.90 (1.99) 
0.90 (1.99)

69.9 (2.75) 
69.9 (2.75)

221 (8.7) 
221 (8.7)

90.0 (101.6) 
89.2 (100.8)

1.43 (4.69) 
1.43 (4.69)

0.08 (0.26) 
0.08 (0.26)

C

20237 
25126

1/4 in 

6mm

20,000

0.96 (2.04) 
0.96 (2.04)

69.9 (2.75) 
69.9 (2.75)

190 (7.5) 
190 (7.5)

86.1 (97.7)
86.1 (97.7)

3.87 (12.7)
3.87 (12.7)

0.51 (1.7)
0.51 (1.7)

C

20238 
25127

1/4 in 

6mm

18,000

0.96 (2.04) 
0.96 (2.04)

69.9 (2.75)
69.9 (2.75)

190 (7.5)
190 (7.5)

89.7 (101.3)
89.7 (101.3)

3.8 (12.5)
3.8 (12.5)

0.43 (1.4)
0.43 (1.4)

C

20239 
25128

1/4 in  
6 mm

12,000

1.21 (2.67) 
1.21 (2.67)

1.44 (1.75) 
1.44 (1.75)

233 (9.19) 
233 (9.19)

82.1 (93.7) 
82.1 (93.7)

5.42 (17.78) 
5.42 (17.78)

0.47 (1.54) 
0.47 (1.54)

C

20240 
25129

1/4 in  
6 mm

8,000

1.16 (2.55) 
1.16 (2.55)

1.44 (1.75) 
1.44 (1.75)

226 (9.80) 
226 (9.80)

82.5 (94.1) 
82.5 (94.1)

2.96 (9.71) 
2.96 (9.71)

0.41 (1.35) 
0.41 (1.35)

C

28770

1/4 in 

18,000

1.38 (3.05)

1.44 (1.75)

311 (12.25)

81.0 (92.6)

1.04 (3.41)

0.11 (0.36)

C

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   N/A   N/A

Summary of Contents for C Series

Page 1: ...iodically to verify that ratings markings and labels are legible Contact 3M Company to obtain replacement labels Summary of device labels containing safety information Marking Description WARNING READ...

Page 2: ...and arm injury may result from repetitive work motion and overexposure to vibration Hold the tool with a light but safe grip knowing that the grip must be sufficient to counter reaction forces but tha...

Page 3: ...te 8 29004 Front Wear Plate 9 06561 Rotor 10 28979 Vane set of 5 11 06601 Cylinder 20 000 RPM 11 06564 Cylinder 18 000 RPM 12 28981 Rear End Plate 13 06527 Wave Washer 0 440 x 0 618 x 0 008 Fig 3M PN...

Page 4: ...0388 Needle Bearing 1 16 87481 Planet Gear 3 17 87438 Wear Plate 1 18 28992 Front End Plate 1 19 29004 Font Wear Plate 1 20 87412 Rotor 1 Fig 3M PN Description Qty 21 28979 Vane Kevlar 1 HP set of 5 1...

Page 5: ...87413 Ring Gear 1 14 87438 Wear Plate 1 15 28992 Front Endplate 1 16 29004 Font Wear Plate 1 17 87412 Rotor 1 18 28979 Vane Kevlar 1 HP set of 5 1 Fig 3M PN Description Qty 19 06563 Cylinder 1 20 2898...

Page 6: ...ront Endplate 1 13 29004 Front Wear Plate 1 14 06561 Rotor 1 15 28979 Vane Kevlar 1 HP set of 5 1 16 06601 Cylinder 1 17 28981 Rear End Plate 1 18 06527 Wave Washer 1 0 440 x 0 618 x 0 008 Fig 3M PN D...

Page 7: ...3 06611 Ball Bearing 14 06621 O Ring 15 06629 Front End Plate 16 30402 O Ring 17 30418 Spacer 18 30424 Rotor Fig 3M PN Description 19 87137 Vane 0 5 HP 20 06631 Cylinder 21 06630 Rear End Plate 22 066...

Page 8: ...acer 11 06634 Rotor 12 87137 Vane Set 0 5 HP 13 06631 Cylinder 14 30373 Motor Restricting Washer 15 06630 Rear End Plate Fig 3M PN Description 16 06612 Ball Bearing 17 87123 Housing 18 87121 3M Jacket...

Page 9: ...Plate 14 30418 Spacer 15 30422 Rotor 16 87137 Vane Set 0 5 HP 17 06631 Cylinder 18 30373 Motor Restricting Washer 19 06630 Rear End Plate Fig 3M PN Description 20 06612 Ball Bearing 21 87123 Housing 2...

Page 10: ...the airline and put 2 to 3 drops of suitable pneumatic motor lubricating oil such as 3M Air Tool Lubricant PN 20451 or equivalent 10 centistoke oil into the air inlet of the tool Reconnect tool to the...

Page 11: ...0 Dust can be highly combustible 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 Do not exceed maximum reco...

Page 12: ...se 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 s...

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