TM 1-1520-238-23
2-390.14
Change 8
2.107C. VERTICAL STABILIZER SPAR BOX BUSHING REPLACEMENT (AVIM) – continued
2.107C.6. Installation
NOTE
The bushings must be installed in
matched sets (pairs).
Bushings with outside diameters in ex-
cess of 1.352 INCH require replace-
ment with oversize bushings.
a. Select bushings (1) from table 1-1.
(1) Measure the outside diameter of the removed
bushings (1). Use caliper.
b. Cold soak the replacement bushings (1) with
dry ice for approximately 15 MINUTES prior to
installation. Use carbon dioxide (item 40,
App F). (TM 55-1500-322-24)
NOTE
Do not apply sealing compound under
flange area.
Sealing compound will cure in 1 to 2
HOURS at ambient temperatures of
approximately 70 F (21 C).
c. Apply sealing compound to outside of bush-
ings (1) and the mating bores (2). Use sealing
compound (item 158A, App F).
d. Position new bushings (1) against mating
bores (2) of mount fittings (3).
e. Press bushings (1) into mating bores (2) until
seated. Use Vertical stabilizer bushing tool set
(item 394, App H).
f. Line ream installed bushings (1) to required
dimensions and locations per table 2-1.
g. Install angle bracket (para 2.107B).
h. Install Horizontal stabilator (para 2.113.
i. Inspect (QA).
END OF TASK
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