TM 1-1520-238-23
1-313
1.102.
CRANE ADJUSTMENT – MAIN ROTOR GEARSHAFT, SUPPORT (STATIC) MAST, OR
SWASHPLATE HOISTING
1.102.1. Crane Adjustment
a. Move sheave (1) to boom (2) position 4.
(1) Move crane handle (3) up.
NOTE
Use tag lines to move boom.
(2) Turn boom (2) forward until it is about 1 foot
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 arm position hole 4 (6).
(6) Install pin (4) through sheave (1) and boom
(2).
b. Adjust boom (2) to yoke (7) on position C.
(1) Move handle (3) up.
(2) Turn boom (2) aft until boom is 90 degrees
from side of fuselage.
(3) Move handle (3) down.
(4) Crank boom hoist drum (8) until quick-release
pin (9) turns freely.
(5) Remove pin (9) from yoke (7) and boom (2).
(6) Crank winch (10). Aline boom (2) hole X (11)
with yoke (7) position hole C (12).
(7) Install pin (9) through yoke (7) and boom (2).
(8) Crank boom hoist drum (8) to loosen boom
line.
END OF TASK
M04-2235-1
2
1
DOWN
3
VIEW
ROTATED
6
4
1
2
5
M04-2235-2
2
VIEW ROTATED
DOWN
3
VIEW
ROTATED
7
2
M04-2235-3
M04-2235-4
8
10
7
12
9
2
11
9
