TM 55-1520-240-23-1
1-40
INSTALL HOISTING UNIT
(Continued)
1-40
15.
Position sleeve (27) over upper tube (21). Align
guide bars (28) on sleeve with slots (29) in hole
(4). Push sleeve in hole until lip (30) is against
fuselage (2).
NOTE
Hole is marked sta. 179.7 at forward
location. It is marked 419.5 at aft
location.
16.
Remove screw (31) from hole (32) in fuselage.
17.
Remove quick-release pin (33) from azimuth
control (34).
18.
Position control (34) over tube (21) and lower
control to fuselage (2).
19.
Install quick-release pin (33) through control (34)
and tube (21).
20.
Position aft end of control (34) over threaded
hole (32). Install captive screw (35) in hole and
hand tighten.
21.
Stow screw (32) in stowage place in azimuth
control (34).
Upper tube must be returned to
original position to ensure secure
mast and boom installation. If tube
is not in original position, mast and
boom can slip out. Damage to
equipment will result.
22.
Rotate upper tube (21) by turning handle
(36) on azimuth control (34) clockwise and
counterclockwise several times to make sure
control is functioning.
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