1
Snap ring
29
Wire rope wedge
2
Adjusting shim (8 rqr)
30
Screw, cap, 5/8-18 x 11 in. (8 rqr)
8
Boom hoist drive sprocket
81
Washer, lock, ET, 5/8 in. (8 rqr)
4
Main drum drive sprocket
82
Right-hand drum
6
Adjusting shim (8 rqr)
88
Roller pin, 3/16 x in. (4 rqr)
6
Snap ring
84
Thrust ring
7
Setscrew, special (8 rqr)
85
Drum hub
8
Pillow block
86
Drum hub outer bearing
9
Snap ring
87
Snap ring
10
Left side clutch driver
88
Drum hub inner bearing
1l
Left-hand clutch drum
89
Setscrew, special (8 rqr)
12
Screw, cap, 5/8-18 x 1 in. (6 rqr)
40
Pillow block,
18
Washer, lock, ET, 5/8 in. (6 rqr)
41
Snap ring
14
Planetary gear retaining ring
42
Right side clutch driver
15
Snap ring
48
Screw, cap, 5/8-18 x 1 in. (7 rqr)
16
Left-hand clutch drum bearing
44
Washer, lock, 5/8 in. (7 rqr)
17
Screw, cap, 10-32 x 1 in. (3 rqr)
45
Top right-hand drum lagging
18
Nut, 10-32 (8 rqr)
46
Bottom right-hand drum lagging
19
Fitting (8 rqr)
47
Wire rope wedge
20
Planetary gear shaft (8 rqr)
48
Screw, cap, 5/8-18 x 1 1/2 in. (8 rqr)
21
Load lowering planetary gear (3 rqr)
49
Washer, lock, ET, 5/8 in. (8 rqr)
22
Planetary gear bearing (6 rqr)
50
Right-hand clutch drum
23
Load lowering drive gear
51
Drum hub
24
Drive gear spacer
52
Drum hub outer bearing
25
Screw, cap, 5/8-18 x 1 in. (7 rqr)
58
Snap ring
26
Washer, lock, 5/8 in. (7 rqr)
54
Drum hub inner bearing
27
Top left-hand drum lagging
55
Hoist and haul back shaft
28
Bottom left-hand drum lagging
Figure 36. -Continued.
145.
Jackshaft
Assembly
Reassembly
and
(3) Install the main drive sprocket (TM 5-
Installation
3810-207-20).
a. Reassembly.
Reassemble the jackshaft
assembly in the reverse of the numerical sequence as
(4) Install the power transfer chain, swing
illustrated on figure 88.
shaft drive chain, and main hoist power-
down chain (TM 5-3810207-20).
b. Installation.
(5) Install the transfer case, swing drive chain
(1) Install the jackshaft
assembly
as
guard, and main drum drive chain guard
illustrated on figure 37.
(TM 5-3810-207-20).
(2) Install the crane cab (par. 44).
Section III. BOOM HOIST SHAFT AND GEARCASE ASSEMBLY
a. Removal.
146. General
The boom hoist shaft assembly consists of the
(1) Remove the cab assembly and the main
boom hoist clutch, clutch drum, brakedrum, cable drum,
hoist shaft (pars. 44, 139).
boom hoist drive chain sprocket, and the boom hoist
gear assembly. The shaft is supported on the revolving
(2) Remove the boom hoist shaft drive chain
frame by two pillow block bearing units. The purpose of
and chain guards, hydraulic lines and
the power-down or overrunning cam clutch is to lower
packing gland assembly (TM 5-3810-207-
the boom under power at a speed controlled by the
20).
engine throttle setting.
(3) Remove the boom hoist shaft and
147.
Boom Hoist and Gearcase Assembly Removal
and Disassembly
TAGO 5030A
79
