3M 28408 - Parts List; Assembly Requirements; Parts Identification

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Parts Page
PARTS LIST FOR 3M PN 28408, 12,000 RPM, 4"–5" SANDER (SERIES C)
Figure Part Number Description Qty.
1 87431 Grease Seal (21" x 29" x 4") 1
2 87420 Bearing Retainer 1
3 87434 5/8-11 Spindle Shaft 1
4 30367 Ball Bearing (17" x 35" x 10") 1
5 06648 Gear Spacer 1
6 87419 Felt Washer (Output) 1
7 87421 Spiral Bevel Gear 12,000 RPM 1
8 87417 7/16"-20 Nylon Nut 1
9 55144 Ball Bearing 0.500" x 0.25" x 0.125" 2
10 87426 Wave Disc Spring 1
11 87418 Angle Head 1
12 55079 O-Ring (1.19" x 0.063") 1
13 87423 Clamp Nut 1
14 87424 Spiral Retaining Ring 1
15 87422 Spiral Bevel Gear 12,000 RPM 1
16 87429 Felt Washer (Input) 1
17 06652 Angle Head Spacer 1
18 06510 Ball Bearing (3/8" x 7/8" x 9/32") 1
19 28992 Front End Plate 1
20 29004 Font Wear Plate 1
21 06562 Rotor (5 Slot) 1
22 28979 Vane Kevlar 1 HP (Set of 5) 1
Figure Part Number Description Qty.
23 06563 Cylinder 1
24 28981 Rear Endplate 1
25 06508 Ball Bearing (1/4" x 5/8" x 0.1961") 1
26 06567 Washer (0.251" x 0.468" x 0.063") 1
27 06568 Screw #8-32 x 3/8" 1
28 06609 O-Ring (1.38" x 0.094") 1
29 28977 Steel Housing 1 HP 1
30 06642 Lever Assembly 1
31 28980 Trigger Valve 1
32 28983 O-Ring 1
33 06614 Spring 1
34 06620 O-Ring (0.364" x 0.070") 1
35 06627 Air Regulator 1
36 06616 Pin 1
37 87402 Roll Pin 1
38 28978 Housing Cover 1 HP 1
39 29006 Mufer 1
40 28982 Diffuser Screen 1
41 29007 O-Ring 1
42 28991 3/8" NPT Bushing 1
43 87126 Label 1
Not Shown 06524 5/8" Wrench 1
Assembly Requirements
Fig. Torque / Specication Threadlocker
2 10-15 ft-lb 3MTL62
6 Soak in Air Motor Oil None
8 120 in-lb None
13 15-20 ft-lb 3MTL62
15 90-120 in-lb 3MTL62
16 Soak in Air Motor Oil None
27 15-20 in-lb 3MTL42
42 20-25 ft-lb 3MTL62