TM 1-1520-238-23
Change 2
2-556.1
2.150.
FIREWALL ASSEMBLY NO. 1 OR NO. 2 AFT INBOARD ENGINE MOUNT SUPPORT BEARING
REPLACEMENT – continued
2.150.6. Installation
a. Install new bearing (1) in support (2).
NOTE
Do not allow primer to penetrate between
inner and outer races of bearing.
(1) Apply primer to mating surfaces of bearing (1)
and support (2). Use sealing compound
primer (item 146, App F). Allow primer to air
dry 30 MINUTES.
NOTE
Do not allow sealing compound to pene-
trate between inner and outer races of
bearing.
(2) Apply a coat of sealing compound to mating
surfaces of bearing (1) and support (2). Use
sealing compound (item 167, App F) and
brush (item 34, App F).
(3) Hand install bearing (1) in support (2). Ensure
outer race of bearing (1) is flush with support
(2).
(4) Form a neat fillet of sealing compound
around outer race of bearing (1). Remove
excess. Use sealing compound (item 167,
App F) and brush (item 34, App F).
(5) Cover bearing (1) installation with cellophane
and seal with tape. Use cellophane (item 41,
App F) and tape (item 206, App F).
(6) Cure 24 HOURS before removing tape and
cellophane.
b. Inspect (QA).
c. Install No. 1 or No. 2 aft engine mount support
(para 4.85).
d. Install No. 1 or No. 2 engine (para 4.48 or 4.52).
END OF TASK
2
1
1
M04-3632-3
M04-3632-4
2
1
M04-3632-5
TAPE
TAPE
CELLOPHANE
CELLOPHANE
