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3M 5 in Buffer 

Revision 10242011

3M 5 in Buffer 

Revision 10242011

Parts List

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

Product Configuration/Specifications: 10,000 RPM Buffer

* Declared noise levels; measurements carried out in accordance with standard EN ISO 15744.
** Declared vibration levels in accordance with EN ISO 12096; measurements carried out in accordance with Standard EN ISO 28927-3.

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.

Model 

Number

Pad Size  

mm (in)

Replacement 

Disc Pad 

Number 

Replacement 

Foam Pad 

Number

Orbit  

mm (in)

Product 

Net Wt. kg. 

(lb)

Length

mm (in)

Height

mm (in)

*Noise 

Level dBA 

Pressure 

(Power)

**Vibration 
Level m/s

2

 

(ft/s

2

)

**Uncertainty

K

m/s

2

28392

127 (5)

84226

02362

10 (3/8)

1.32 (2.90)

328.3 

(12.93)

112.6 (4.43)

77 (88)

13.1 (43.0)

1.79

IT

3M P/N

3M UPC

DESCRIPTION

QTY.

1

A0040

28113

EXTERNAL RETAINING RING 

1

2

A0021

28107

BEARING - 2 SHIELDS 

1

3

B0017

28173

REAR ENDPLATE 

1

4

30349

30349

ROTOR 

1

5

30303

30303

VANE 

5

6

A0041

28114

WOODRUFF KEY 

2

7

A0042

28115

O-RING 

1

8

30302

30302

CYLINDER ASSEMBLY 

1

9

B0016

28172

FRONT END PLATE 

1

10

A0019

28106

BEARING - 2 SHIELDS 

1

11

A0045

28118

O-RING 

1

12

A0001

28093

LOCK RING 

1

13

28566

28566

127 mm (5 in) x 10.0 mm (3/8 in) ORBIT BUFFER SHAFT BALANCER 

1

14

A0122

28132

FILTER 

1

15

A0121

28131

DUCKBILL CHECK VALVE 

1

16

A0120

28130

VALVE RETAINER 

1

17

A0090

28127

RETAINING RING 

1

18

30316

30316

DOUBLE ROW BEARING - 1 SEAL 

1

19

30323

30323

SPACER 

1

20

30318

30318

BELLEVILLE WASHER 

1

21

30354

30354

SPINDLE 

1

22

30319

30319

RETAINING RING 

1

23

28567

28567

127 mm (5 in) ROB 10,000 RPM 10.0 mm (3/8 in) ORBIT THROTTLE LEVER 

1

24

30332

30332

M8 THREADED PLUG 

2

25

28568

28568

RH HOUSING 

1

26

A0068

28122

MUFFLER INSERT 

2

27

30320

30320

TOP HOUSING SEAL 

1

28

28569

28569

NV LOWER HOUSING SEAL 

1

29

30328

30328

SPACER RING 

2

30

30331

30331

HANGER 

1

31

30356

30356

MACHINED MOTOR HOUSING 

1

32

30300

30300

CYLINDER SPRING PIN 

1

33

30313

30313

VALVE STEM ASSEMBLY 

1

34

A0015

28102

VALVE SLEEVE 

1

35

A0009

28098

VALVE SEAT 

1

36

A0007

28096

VALVE 

1

37

A0014

28101

VALVE SPRING 

1

38

30315

30315

AIRLINE SEAL ASSEMBLY 

1

39

30309

30309

TUBING CLAMP 

1

40

30307

30307

INLET TUBING 

1

41

30306

30306

INLET CAPTIVE RING 

1

42

30305

30305

O-RING 

1

43

30312

30312

O-RING 

1

44

30317

30317

MUFFLER 

2

45

28570

28570

INLET/EXHAUST END CAP ASSEMBLY 

1

46

A0013

28100

1/4-18 NPT INLET BUSHING ASSEMBLY 

1

47

30321

30321

SCREW, BUTTON HEAD TORX M4.0 x 15 mm 

4

48

30304

30304

EXHAUST GASKET 

1

49

30351

30351

NV/CV EXHAUST NOZZLE 

1

50

30314

30314

SCREW HEX SOCKET BUTTON HEAD CAP M4 x 8 

3

51

30310

30310

EXHAUST TUBING 

1

52

02362

51076

FINESSE-IT™ BUFFING PAD, FOAM ORANGE, 5 1/4 in 

1

53

84226

51042

HOOKIT™ D/F LOW PROFILE FINISHING DISC PAD, 5 in x 11/16 in x 5/16-24 Ext

1

54

A0022

28108

24 mm PAD WRENCH 

1

55

28571

28571

BUFFER SHROUD 

1

56

28572

28572

LH HOUSING 

1

57

30322

30322

SCREW, BUTTON HEAD TORX M4.0 x 30 mm 

7

58

A0043

28116

O-RING 

1

59

30330

30330

SPEED CONTROL 

1

60

A0039

28112

INTERNAL RETAINING RING 

1

61

30334

30334

SIDE HANDLE 

OPT

Содержание 28392

Страница 1: ...ir 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 to...

Страница 2: ...culate 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 ...

Страница 3: ...t the phenolic washer is in place around the threaded shaft of the new disc pad 5 Secure the buffer spindle with the wrench and tighten the new disc pad securely to the tool WARNING An inadequately tightened disc pad could cause the threaded shaft to break causing damage to the tool and work piece and possible injury to the operator or bystanders Mounting rubber tool hanger accessory onto buffer 1...

Страница 4: ... Name 34870877577 indd Structure NA Date 10 28 11 Printed Colors Front Printed Colors Back Match Colors This artwork has been created as requested by 3M 3M is responsible for the artwork AS APPROVED and assumes full responsibility for its correctness ...

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