TM 55-1520-240-23-1
1-41
REMOVE HOISTING UNIT
(Continued)
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19.
Remove strap (26) from support tube (21).
20.
Position strap (26) over tube (27) in upper tube
(8).
21.
Position support tube (21) in strap (26). Install
pin (23) into holes (28).
22.
Have helpers position mast and boom (14) under
jib boom hook (29).
23.
Lower hook (29) by turning jib boom winch
handle (30) in DOWN direction.
24.
Attach hook (29) to bracket (31).
Helpers must guide mast and boom
while it is lowered from fuselage to
prevent it from hitting helicopter.
25.
Hoist (raise) mast and boom (14) off fuselage
(16).
26.
Have helpers steady mast and boom (14) with
guidelines (17).
27.
Position mast and boom (14) over right side of
helicopter by turning azimuth control handle (18).
28.
Lower mast and boom (14) to ground by turning
winch handle (30) in DOWN direction.
29.
Remove hook (29) from bracket (31) and rewind
by turning winch handle (30) in UP direction.
Remove guidelines (17).
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