TM 1-1520-238-23
5-164
5.35.
MAIN ROTOR STRAP PACK REPLACEMENT – continued
5.35.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. Install -5 rig pin (1) in pilot cyclic stick (2)
lateral rig pin hole (3). Use rigging pin set.
c. Install -9 rig pin (4) in pilot cyclic stick (2)
longitudinal rig pin hole (5). Use rigging pin set.
d. Disconnect primary hydraulic external power
(para 1.72).
e. Disconnect main rotor blade pitch links (para
11.14).
CAUTION
Loosen nuts only. Do not allow bolts to
turn in main rotor hub. Damage to main
rotor hub and lower shoe will result.
NOTE
Back off six nuts far enough that lower
shoe can drop 1 INCH.
f. Loosen six nuts (6) on bolts (7).
(1) Leave two nuts (6) tight on bolts (8).
g. Loosen remaining two nuts (6) on bolts (8).
(1) Back off nuts (6) one half turn at a time until
lower shoe (9) has dropped 1 INCH. Use
hinged handle, two sockets, and box wrench.
h. Remove main rotor pitch housing (para 5.25).
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M04-3734-28
3
1
2
4
5
M04-3734-10
7
7
8
7
8
6
1.0 INCH
M04-3734-11
6
9
8
8
6
9
