TM 1-1520-238-23
5-256.14
Change 1
5.57A.
TAIL ROTOR HUB ASSEMBLY REMOVAL/INSTALLATION (AVIM) – continued
CAUTION
Check that fixture assembly is level and
secure. Fixture must remain level during
assembly.
u. Install hub (6) and strap pack (10) in upper
fork (5).
(1) Position hub (6) in fork (5) to match #1’s and
#2’s.
(2) Install bolt (11) through countersunk washer
(14), #1 fork mount (29), #1 side spacer (15)
stack, hub (6), strap pack (10), #2 side spacer
(15) stack, and #2 fork mount (30).
(3) Install plain washer (13) and nut (12) on bolt
(11).
(a) Tighten nut (12) finger tight.
v. Level hub (6). Use level.
(1) Repeat steps o and p.
(2) Check that hub is still level. If not, repeat
steps p thru u.
w. Remove tail rotor head (1) from fixture (2).
(1) Loosen four jack pads (27) on uprights (7) of
fixture (2).
(2) Loosen and remove nut (3) from pedestal (4).
(3) Remove tail rotor head (1) from fixture (2).
x. Install tail rotor head (para 5.61).
END OF TASK
M04-3245-20
10
6
13
11
14
15
12
30
29
5
M04-3245-19
27
7
4
2
3
1
