TM 1-1520-238-23
Change 4
5-43
5.7.
MAIN ROTOR BLADE DEBONDED DOUBLER OR SPAR REPAIR (AVIM) – continued
e. Lift debonded spar (4) just high enough to
remove existing loose adhesive.
(1) Scuff sand both surfaces. Use paper
(item 133, App F) and paper (item 135,
App F).
f. Remove loose scale, chips, and dust between
mating surfaces of blade (1) and debonded
spar (4).
g. Clean mating surfaces between blade (1) and
debonded spar (4). Use brush (item 34, App F)
and methyl ethyl ketone (item 124, App F).
h. Prime cleaned area (TM 55-1500-345-23). Use
primer (item 144, App F) and air blow gun.
(1) Allow primer to dry at room temperature 1
HOUR.
i. Inject adhesive between mating surfaces of
blade (1) and debonded spar (4). Use adhesive
(item 2, App F) and syringe (item 195, App F).
j. Press debonded spar (4) against blade (1).
(1) Apply only necessary pressure to hold spar
(4) against blade (1).
k. Wipe excess adhesive from blade (1). Use
cloth (item 52, App F).
l. Allow adhesive to cure at room temperature
for 24 HOURS.
GO TO NEXT PAGE
1
M04 2329 11
4
1
M04 2329 15
4
ADHESIVE
1
M04 2329 13
4
ADHESIVE
