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PARTS LIST FOR PN 28403, 12000 RPM, 4" GRINDER, TYPE-27 (SERIES C)
Fig
3M PN
Description
1
87431
Grease Seal (21" x 29" x 4")
2
87420
Bearing Retainer
3
87432
3/8"-24 Spindle Shaft
4
30367
Ball Bearing (17" x 35" x 10")
5
06648
Gear Spacer
6
87419
Felt Washer (Output)
7
87421
Spiral Bevel Gear 12,000 RPM
8
87417
7/16"-20 Nylon Nut
9
55144
Ball Bearing
0.500" x 0.25" x 0.125"
10
87426
Wave Disc Spring
(0.494" x 0.377" x 0.009")
11
66767
Socket Cap Screw
12
66766
Washer
13
55083
1/4"-20 Hex Nut
14
87433
4" Type 27 Guard
15
87418
Angle Head
16
87423
Clamp Nut
17
55079
O-Ring (1.19" x 0.063")
18
87424
Spiral Retaining Ring
19
87422
Spiral Bevel Gear 12,000 RPM
20
87429
Felt Washer (Input)
21
06652
Angle Head Spacer
22
06510
Ball Bearing
(3/8" x 7/8" x 9/32")
23
28992
Front End Plate
24
29004
Font Wear Plate
25
06562
Rotor (5 Slot)
26
28979
Vane Kevlar 1 HP (Set of 5)
27
06563
Cylinder
Parts Page
Assembly Requirements
Fig.
Torque / Specification
2
10-15 ft-lb
6
Soak in Air Motor Oil
8
120 in-lb
11
120 in-lb
16
15-20 ft-lb
19
90-120 in-lb
20
Soak in Air Motor Oil
31
15-20 in-lb
46
20-25 ft-lb
Qty
Fig
1
28
1
29
1
1
30
1
1
31
1
32
1
33
2
34
35
1
36
37
1
38
2
39
1
40
1
41
1
42
1
43
1
44
1
45
1
46
1
47
1
Not shown
1
Not shown
Not shown
Not shown
1
1
1
1
1
3
Threadlocker
3MTL62
None
None
None
3MTL62
3MTL62
None
3MTL42
3MTL62
3M PN
Description
28981
Rear Endplate
06508
Ball Bearing
(1/4" x 5/8" x 0.1961")
06567
Washer
(0.251" x 0.468" x 0.063)"
06568
Screw #8-32 x 3/8"
06609
O-Ring (1.38" x 0.094")
28977
Steel Housing 1 HP
06642
Lever Assembly
28980
Trigger Valve
28983
O-Ring
06614
Spring
06620
O-Ring
06627
Air Regulator
06616
Pin
87402
Roll Pin
28978
Housing Cover 1 HP
29006
Muffler
28982
Diffuser Screen
29007
O-Ring
28991
3/8" NPT Bushing
87126
Label
55082
Lower Wheel Flange
55085
Upper Wheel Flange
55081
Spanner Wrench
06524
5/8" Wrench
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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