Key to figure 3-4
I Screw -61
18 Shafts
35 Washer (3)
52 Cover
69 Retainer
2 Washer 16
It) Fitting, lubrication
3(6 Screw (3)
53 Seal (8)
70 Shaft
3 Plate
20) Nut (4)
37 Nut (41
54 Seal (2)
71 Plate
4 Gasket
21 Washer (4)
38 Washer 141
55 Bearing 42)
2 Bearing
5 Bushing
22 Screw 141
30 Stud 14)
56 Plate (2)
73 Bearing
6 Drum
23 End cap
40 Adapter
57 Gasket
74 Seat 12)
-7 Bushing
24 Gasket
41 Gasket
58 Housing
75 Cover
8 Key (2
25 Shim
42 Cup
59 Gear(2)
76 Fitting. lubrication
92 Nut (8)
2, Nut
43 Cone and roller
60 Key
77 Seal
10 Washer (8)
27 Washer
44 Spacer
61 Key
78 Spacer
11 Cover
28 Cup
45 Key
62 Key
79 Washer
12 Gasket
20 Cone and roller
46 Shaft
63 Shaft
80 Bearing
13 Bushing
30 Cup
47 Case
64 Plate
81 Seal
14 Seal
31 Gear
48 Motor
65 Ring (3)
82 Retainer
15 Gear
32 Spacer
49 Screw (2)
66 Bearing
83 Retainer
16 Bushing
33 Plug 14)
50 Plate
67 Packing
17 Stud 18)
34 Nut (3)
51 Screw (8)
68 Ring
Figure 3-4. Winch assembly exploded view.
c. Cleaning and Inspection.
(1) Wipe all parts clean.
NOTE
(2) Inspect all bearings for smooth operatic
If crane fails to lift load, back off worm gear end
and housing for nicks and scoring.
cap bolts (22, fig. 3-4) in 1/2 turn increments,
(3) Inspect gears for wear, burs, and crack
exercising caution, until crane lifts load.
(4) Inspect all parts for obvious damage.
(5) Replace all seals and gaskets.
WARNING
(6) Replace defective parts as required.
The worm gear is self-locking. If the
d. Reassembly.
end cap bolts are loosened too much,
(1) Apply a light coat of oil to all parts.
the load will free-fall when the winch
(2) Refer to figure 3-4 to reassemble winc
control lever is shifted to lower the load.
assembly.
3-5. Slewing Cylinder
e. Installation.
a. Removal.
(1) Connect hydraulic lines.
(1) Disconnect hydraulic hoses.
(2) Fill gear case in accordance with LO 1I
(2) Refer to figure 3-5 and remove capscrews
3950-203-12.
that secure retainer (2) and pin (5) and remove
(3) Install load block (TM 10-3950-203-20
pins (3).and (5). Remove cylinder.
(4) Attach 10,000 pound load.
b. Disassembly.Refer to figure 3-5 and starting
(5) Operate crane (TM 10-3950-203-10) an
with cylinder base end (10), disassemble the
raise 10,000 pound load.
cylinder to the extent necessary to repair the
cylinder.
3-9
