TM 1-1520-238-23
Change 2
2-556.3
2.150A. FIREWALL ASSEMBLY NO. 1 OR NO. 2 AFT INBOARD ENGINE MOUNT SUPPORT BEARING
BORE REPAIR – continued
2.150A.4. Installation
a. Install bushing (1) and bearing (2) in support
(3).
CAUTION
Do not allow primer to penetrate between
inner and outer races of bearing.
(1) Apply primer to mating surfaces of bushing
(1) and bearing (2). Use bushing (figure
D-442.2, App D) and sealing compound
primer (item 146, App F). Allow primer to air
dry 30 MINUTES.
CAUTION
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 bushing (1) and bearing (2). Use
sealing compound (item 167, App F) and
brush (item 34, App F).
(3) Press bushing (1) flush in bearing (2). Use
puller kit.
(4) Hand install bearing (2) and bushing (1) in
support (3). Ensure outer race of bearing (2)
is flush with support (3).
(5) Form a fillet of sealing compound around out-
er race of bearing (2), bushing (1), and sup-
port (3). Remove excess sealing compound.
Use sealing compound (item 167, App F) and
brush (item 34, App F).
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