1 Capscrew (6 rqr)
24
Plate
47
Elbow (2 rqr)
2 Fittings (2 rqr)
25
Capscrew (6 rqr)
48
Nipple
3 Cap
26
Spur gear
49
Coupling
4 Gasket
27
Seal
50
Fitting (8 rqr)
5 Nut
28
Bearing
51
Sleeve nut (8 rqr)
6 Cotterpin
29
Retainer
52
Lockwasher (4 rqr)
7 Flatwasher
30
Spacer
53
Capscrew (8 rqr)
8 Bearing
31
Capscrew (6 rqr)
54
Cone & roller (4 rqr)
9 Retainer
32
Lockwasher (12 rqr)
55
Spacer (2 rqr)
10 Lockwasher (14 rqr)
33
Plate (3 rqr)
56
Packing (4 rqr)
11 Nut (11 rqr)
34
Pin (3 rqr)
57
Retainer (2 rqr)
12 Spacer
35
Pipe plug (6 rqr)
58
Bushings (5 rqr)
13 Sleeve bearing
36
Sprocket wheel
59
Key (2 rqr)
14 Spider
37
Lockwasher (2 rqr)
60
Shoulder bolt (2 rqr)
15 Sleeve spacer
38
Cotterpin (4 rqr)
61
Bushings (2 rqr)
16 Spur gear
39
Nut (2 rqr)
62
Spur gear (2 rqr)
17 Cup (2 rqr)
40
Spider
63
Flatwasher (2 rqr)
18 Spacer
41
Bolt (4 rqr)
64
Cotterpin (2 rqr)
19 Gear
42
Lockwasher (4 rqr)
65
Nut (2 rqr)
20 Wedge
43
Nut (4 rqr)
66
Bolt (2 rqr)
21 Cable drum
44
Lagging
67
Spring (3 rqr)
22 Plug
45
Wedge
68
Pawl (3 rqr)
23 Cone & roller (2 rqr)
46
Nipple (2 rqr)
Figure 4-9. Main drum (hoist) shaft, exploded view (sheet 1 of 2).
now operating as a shovel you must
(11) Tag and disconnect all hydraulic lines to
remove the dipper trip mechanism
clutch and brake cylinders on main hoist shaft, then plug
(TM 5-3810-201-12) instead of step (8)
or cover ports or ends (TM 5-3810-201-12).
below.
(12) Position a suitable sling and lifting device,
lift main hoist shaft vertically until it clears sidestand, then
(8) Remove six capscrews (1, sheet 2 of fig. 4-
swing it into position and lower to rest on blocks where
further disassembly may be performed.
caps (6 and 10, fig. 4-4).
(9) Remove two nuts (4), lockwashers (5), and
b. Disassembly.
bolts (3) that secures bearing cap (6) to sidestand (10,
(1) Remove cable laggings from hoist and
(10) Remove four nuts (15) and bolts (16)
digging drums (TM 5-3810-201-12).
securing outboard support (17) to outboard bearing
bracket (18) and remove support (17).
4-13
