T O 35C2-3-442-2
T M 5-6115-457-34
damaged area may be repaired by welding
regulated air supply to remaining fuel
a suitable patch over area.
4. Remove water from fuel tank and
2. Slowly apply 0.5 PSI air pressure
dry interior of tank thoroughly.
to fuel tank.
3. Apply a soapy water solution to
5. Check repaired areas for leakage
fuel tank and check for bubbles that would
indicate leaks. Mark leaks, if any.
4 . Reduce air pressure to zero.
linkage using suitable tools.
Remove test equipment from tank. Remove
soapy water solution from fuel tank.
c. Repair damaged fuel tank threads
e . Connect a suitable pressure supply
using a suitable tap. Fill tap grooves with
and gage to needle valve. Turn on pressure
grease to catch cuttings. Remove all
supply and bleed test equipment by opening
cuttings from fuel tank.
valve. Close valve. Slowly apply 150 PSI
and check for external and internal leakage.
d. Remove damaged paint with a suitable
Reduce pressure to zero and remove test
s c r a p e r . Blend in edges, prime, and paint
equipment from valve.
g . Inspect for damaged threads.
h. Inspect paint for damage.
fuel tank assembly in the reverse order of
attention to the following:
Do not weld fuel tank unless tank
has been steam cleaned and it is
filled with water.
a. Apply thread sealing compound con-
a. Repair cracks and holes in fuel tank
forming to Military Specification MIL-S-
45180, type III, to pipe threads prior to
Steam cleaning creates hazardous noise
levels and severe bum and eye injury
b. Make sure alignment marks on fuel
Eye, skin and ear protec-
tank (15) and plate (4) are aligned when plate
1. Steam clean tank to remove fuel
9 - 2 4 . INSTALLATION.
2 . Fill tank with water.
fuel tank as follows:
Welding operations produce heat,
highly toxic fumes, injurious
a. Install fuel tank (53) in base (61)
borne particles. Welding gog-
through stowage tool box opening, making
gles, with proper tinted lenses,
sure needle valve is toward opening. Posi-
apron or jacket and welder's
tion and hold tank against forward stops
boots are required.
and install rear tank stops (29), bracket
(26), and filler panels (14, 15, and 23).
3 . Weld crack or holes.