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TM 1-1520-238-23
5-256.2
Change 6
5.57A.
TAIL ROTOR HUB ASSEMBLY REMOVAL/INSTALLATION (AVIM) – continued
5.57A.3. Removal
NOTE
Removal of hub assembly and/or hub
components is typical for both upper and
lower hubs.
a. Position tail rotor head (1) on tail rotor fixture
(2). Use tail rotor fixture.
(1) Remove nut (3) from pedestal (4).
(2) Guide fork (5) over pedestal (4).
(3) Rotate fork (5) around pedestal (4) to aline
arms of hubs (6) with correct set of uprights
(7).
(4) Aline any one of three holes (8) on fork (5)
with guide pin (9) on pedestal (4).
(5) Lower fork (5) on pedestal (4).
(6) Hand tighten nut (3) on pedestal (4).
CAUTION
To prevent damage to bearings, ensure
that bearings are not twisted in fork
mounts while removing bolt.
b. Remove hub (6) and strap pack (10) from fork
(5).
(1) Hold bolt (11) and remove nut (12) and wash-
er (13).
(2) Remove bolt (11) and countersunk washer
(14).
(3) Remove two spacers (15).
(4) Remove hub (6) and strap pack (10) from fork
(5).
(5) Discard bolt (11), two washers (13), (14), and
nut (12).
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