TM 1-1520-238-23
1-289
1.92.
HOISTING – MAIN TRANSMISSION INSTALLATION – continued
NOTE
Use tag lines to control transmission
position.
c. Tie two 10-foot lines to left and right sides of
main transmission (8).
d. Lift transmission (8) from maintenance trailer
(9).
(1) Crank winch (7) to hoist transmission (8)
higher than top of installed platform (10).
e. Position transmission (8) over platform (10).
(1) Rotate handle (3) to up position to allow later-
al movement of boom arm (4).
(2) Use two tag lines (5) to move boom arm (4).
Turn boom arm (4) to position transmission
(8) over platform (10).
(3) Rotate handle (3) to down position to prevent
lateral movement of boom arm (4).
(4) Aline and hold positions of transmission (8)
left and right input housings.
f. Lower main transmission (8) to platform.
(1) Crank winch (7) to slowly lower transmission
(8) to platform (10).
(2) Secure transmission (8) to platform (10).
g. Crank winch (7) to provide cable slack below
shackle (6).
h. Retract hook (1).
(1) Unsnap hook (1) from shackle (6).
(2) Crank winch (7) to position hook (1) about 6
inches below boom sheave (11).
END OF TASK
M04-2249-3
10
9
8
M04-2249-2
4
11
8
10
1
5
6
1
2
3
7
