TM 55-1520-240-23-3
4-42
REPAIR CONNECTING LINK (DRAG STRUT) AND ENGINE MOUNT FITTINGS
(AVIM)
(Continued)
4-42
REPLACE BUSHING IN INBOARD LUG
20.
Remove bushing (21) from lug (22).
21.
Ream lug (22) in line with other lug (23). Make a
round hole with an inside diameter (24), no larger
than 0.8120 inch.
22.
Respotface hole in lug (22) to make flat spotface
surface. Do not decrease lug thickness to less
than 0.354 inch.
23.
Measure inside diameter (24) of hole in lug (22).
Record measurement.
24.
Measure width (25) of lug (22) to spotface (26).
Record measurement.
25.
Measure depth (27) of spotface (26). Record
measurement.
26.
Make new bushing (21) from steel (E367) as
follows:
a.
Make outside diameter (28) of bushing (21)
0.0010 to 0.0020 inch more than dimension
found in step 22.
b.
Make bushing length (29) equal to dimension
found in step 24.
c.
Make outside diameter (30) of shoulder (31)
0.75 inch.
d.
Make shoulder thickness (32) equal to
measurement found in step 25.
27.
Apply epoxy primer (E292) to inside of hole in
lug (22). Wear gloves (E184.1).
NOTE
Bushing must be installed while epoxy
primer (E292) is wet.
28.
Install bushing (21) in lug (22) with shoulder (31)
of bushing outboard.
29.
Wipe off excess primer (E292) from lug (22) with
cloths (E135).
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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