4-20.4
Change 2
TM 9-2350-267-34
FUEL TANK REPAIR (CONTINUED)
NOTE
Apply release film and work out air pockets after
each lamination. Work from center of patch
outward.
K
L
M
N
O
P
Q
Place piece of release film on patch and, with hardwood
depressor, work out air pockets. Work from center of patch
outward.
Remove release film.
Repeat steps J-L for second patch application.
Saturate remaining patches with mixture without silica and
apply to crater.
Allow completed patch to set undisturbed for 16 to 24 hours.
NOTE
Cure will be slow in temperature below 70°F.
However, during first hour of cure, temperature
should not exceed 100ºF.
To reduce cure time to about 4 hours, place heat
lamp over patch and gradually increase intensity.
Keep lamp at least 2 feet away from patch. Do not
allow temperature to exceed 250°F.
When cure is complete, and patch flush with surrounding sur-
face, clean and paint with fire retardant paint (item 57, Appx B).
Pressure test the repaired tank using low pressure compressed
air at 3 psi.
TA57373
