TM 1-1520-238-23
1-309
1.99.
CRANE ADJUSTMENT – ENGINE HOISTING
1.99.1. Hoisting
a. Move sheave (1) to position 2 on boom (2).
(1) Move crane handle (3) up.
NOTE
Use tag lines to move boom.
(2) Turn boom (2) forward until it is about 1 foot
out from side of fuselage.
(3) Move handle (3) down.
(4) Remove quick-release pin (4) from sheave
(1) and boom (2).
(5) Slide sheave (1) on boom (2). Aline sheave
hole (5) with boom position hole 2 (6).
(6) Install pin (4) through sheave (1) and boom
(2).
b. Adjust boom (2) to position A on elevation
yoke (7).
(1) Move handle (3) up.
(2) Turn boom (2) aft until it is 90 degrees from
side of fuselage.
(3) Move handle (3) down.
(4) Crank winch (8) until quick-release pin (9)
turns freely.
(5) Remove pin (9) from yoke (7) and boom (2).
(6) Crank boom hoist drum (10) to aline boom
X hole (11) with yoke position hole A (12).
(7) Install pin (9) through yoke (7) and boom (2).
(8) Crank winch (8) to loosen boom lift line.
END OF TASK
M04-2232-1
2
1
DOWN
3
VIEW
ROTATED
M04-2232-2
6
4
1
2
5
VIEW ROTATED
DOWN
3
VIEW
ROTATED
7
2
M04-2232-3
M04-2232-4
10
2
8
9
7
9
12
11
