TM 55-1520-240-23-4
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REPAIR WEATHER-PROTECTIVE COVER (AVIM)
(Continued)
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NOTE
Mixture from step 10c has pot life of
10 hours.
11.
Inject enough adhesive from step 8c into holes
(4) to fill damaged core cells (5).
12.
Cure adhesive mixture as follows:
a.
Heat damaged area (3) at 180º - 200ºF (82º
- 93ºC) for 4 hours minimum until mixture
gels. Use heat lamp.
b.
Raise temperature from 200º - 230ºF (93º -
110ºC) for 1 hour. Use heat lamp.
13.
Roughen damaged area (3). Use 80 grit abrasive
paper (E6).
14.
Fill drilled holes (4) and any remaining skin
damage. Use adhesive from step 10.
15.
Cure adhesive mixture at 70º to 80º F (21º to 27º
C) for 24 hours.
INSPECT
REPAIR SKIN AND CORE DAMAGE
16.
Check for punctures or breaks in one skin and
core. Damage shall not exceed 1/2 square-inch.
Check for damage through both skins and core.
Damage shall not exceed 1/4 square-inch.
17.
Clean damaged area (3). Use cloth (E120) damp
with acetone (E20). Remove any loose pieces
of core (5) or skin (6).
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