TM 1-1520-238-23
5-202
5.45.
MAIN ROTOR UPPER SEAL RETAINER AND PLAIN ENCASED SEAL
REMOVAL/INSTALLATION – continued
5.45.6. Installation
CAUTION
To prevent damage to bonded elastomer
inner seal, do not allow primer to come in
contact with elastomer material.
a. Apply a thin coat of primer to steel shell (15).
Use epoxy primer coating kit (item 78, App F).
(1) Allow primer to cure at room temperature for
2 HOURS prior to installation of retainer/seal
(14). Use brush (item 34, App F).
b. Install retainer/seal (14).
(1) Position retainer/seal (14) against head inner
wall (16).
(2) Install retainer/seal (14). Use upper seal
installation kit phenolic ring and mallet.
(3) Apply continuous bead of sealant (17) be-
tween head inner wall (16) and steel shell
(15). Use sealing compound (item 177,
App F) and brush (item 34, App F).
c. Inspect (QA).
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M04-3083-6
14
17
15
SEALANT
SEAL
HUB
16
