TM 55-1520-240-23-8
10-32
TEST AFT FUEL TANK AFTER INSTALLATION
(Continued)
10-32
g.
Check closure plate (19) at each end of tank
(9). Apply soap mixture as in step 8a. Secure
plates or replace packings, if needed. If leak
is found, repeat steps 6 and 7.
h.
Check pressure switch (20) and fittings on
hose (21). Apply soap mixture as in step 8a.
Secure valve or fittings, or replace packings,
if needed. If leak is found, repeat steps 6
and 7.
i.
Check forward sump drain (22). Apply soap
and water mixture as in step 8a. Secure
drain or replace packings, if needed. If leak is
found, repeat steps 6 and 7.
j.
If no leaks are found in steps 8a thru i, go to
step 14. If leaks are found, go to step 9.
CHECK FOR LEAKS INSIDE TANK
9.
Remove probe (22) and gasket (Task 8-81).
Check inside of flange (22.1). Remove probe
and gasket. Check underside of gasket and
sealing surfaces. Install probe (Task 8-82). If
leak is found, repeat steps 6 and 7.
10-154