3M 28403, Instruction Manual

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Parts Page
PARTS LIST FOR PN 28405, 12000 RPM, 4 1/2” GRINDER, TYPE-27 (SERIES C)
Fig 3M PN Description Qty
1 87431 Grease Seal (21" x 29" x 4") 1
2 87420 Bearing Retainer 1
3 87416 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
(0.494" x 0.377" x 0.009")
1
11 87437 4.5" Type 27 Grinder Guard 1
12 66767 1/4"-20 x 3/4" Screw 1
13 66766 Washer 2
14 55083 Hex Nut 1
15 87418 Angle Head 1
16 55079 O-Ring (1.19" x 0.063") 1
17 87423 Clamp Nut 1
18 87424 Spiral Retaining Ring 1
19 87422 Spiral Bevel Gear 12,000 RPM 1
20 87429 Felt Washer (Input) 1
21 06652 Angle Head Spacer 1
22 06510 Ball Bearing
(3/8" x 7/8" x 9/32")
1
23 28992 Front End Plate 1
24 29004 Font Wear Plate 1
25 06562 Rotor (5 Slot) 1
Fig 3M PN Description Qty
26 28979 Vane Kevlar 1 HP (Set of 5) 1
27 06563 Cylinder 1
28 28981 Rear Endplate 1
29 06508 Ball Bearing
(1/4" x 5/8" x 0.1961")
1
30 06567 Washer
(0.251" x 0.468" x 0.063")
1
31 06568 Screw #8-32 x 3/8" 1
32 06609 O-Ring (1.38" x 0.094") 1
33 28977 Steel Housing 1 HP 1
34 06642 Lever Assembly 1
35 28980 Trigger Valve 1
36 28983 O-Ring 1
37 06614 Spring 1
38 06620 O-Ring (0.364" x 0.070") 1
39 06627 Air Regulator 1
40 06616 Pin 1
41 87402 Roll Pin 1
42 28978 Housing Cover 1 HP 1
43 29006 Muffler 1
44 28982 Diffuser Screen 1
45 29007 O-Ring 1
46 28991 3/8" NPT Bushing 1
47 87126 Label 1
Not shown 06589 Wheel Flange 2
Not shown 55115 Spanner Wrench 1
Not shown 06524 5/8" Wrench 1
Assembly Requirements
Fig. Torque / Specification Threadlocker
2 10-15 ft-lb 3MTL62
6 Soak in Air Motor Oil None
8 120 in-lb None
12 120 in-lb None
17 15-20 ft-lb 3MTL62
19 90-120 in-lb 3MTL62
20 Soak in Air Motor Oil None
31 15-20 in-lb 3MTL42
46 20-25 ft-lb 3MTL62