TM 55-1520-240-23-8
10-22
TEST MAIN FUEL TANK AFTER INSTALLATION
(Continued)
10-22
d.
Check three flanges (22). Apply soap mixture
as in step 15a. Secure flanges or replace
packing, if needed. If leak is found, repeat
steps 13 and 14.
e.
Check two closure plates (23) at ends of tank
(24). Apply soap mixture as in step 15a.
Secure closure plates or replace packings if
needed. If leak is found, repeat steps 13 and
14.
f.
Check aft breakaway fittings (25, 26 and 27).
Apply soap mixture as in step 15a. Secure
fittings or replace packings, if needed. If leak
is found, repeat steps 13 and 14.
g.
Check two access doors (28). Apply soap
mixture as in step 15a. Secure access doors
or replace packings, if needed. If leak is
found, repeat steps 13 and 14.
h.
If no leakage is found in steps 15a thru g,
go to step 21. If leaks are still found, go to
step 16.
CHECK FOR LEAKS INSIDE TANK
16.
Remove probe (22) and gasket (Task 8-81).
Check inside of flange (22.1). Check underside
of gasket and sealing surfaces. Install probe
(Task 8-82). If leak is found, repeat steps 13
and 14.
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