TM 55-1520-240-23-1
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INSTALL HOISTING UNIT
(Continued)
1-40
10.
Have two helpers raise upper tube (21) of upright
(15) through access hole (4) using handle (22).
Have other two helpers guide and steady upper
tube while raised.
11.
Raise tube (21) to the marked (CH-47A) position
(23) on lower tube (24).
12.
Install pin (18) in lower tube (24) in hole of
position (23).
13.
Align two slots (25) in upper tube (21) over pin
(18). Let slots in tube rest on pin.
14.
Install pin (19) through holes (26) of upper tube
(21) and lower tube (24).
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