Inspection, Test and Repair
Inspect tank for cleanliness. Repeat cleaning
procedures (para. 3-14) if necessary.
Inspect tank for any obvious cracks or open
seams. Inspect mounting brackets, mounts and
cushions for cracks or breaks. Weld assembly and
components as required.
Inspect tank inlets and outlets for thread damage
and repair with a thread chaser as required.
Test for leaks as follows:
Close all openings with temporary plugs or
other closures and apply 3-4 psi internal air pressure.
Apply soapy water solution, consisting of
liquid soap diluted with 20-40 % water, to all exterior
surfaces of tank and inspect for air bubble formation.
Mark location of any bubble formation,
rinse and dry tank and weld the marked areas (TM 9-
Repeat step d.
The electric pump and other fittings and accessories
may be assembled on the tanks either before or after
installation of the tanks in the vehicle. Refer to
paragraph 3-13. Refer to TM 9-2350-256-20 for
Section IV. REPAIR OF ELECTRIC FUEL PUMP
The fuel pump is located in the forward fuel tank sump
cavity and is a centrifugal pusher-type pump designed for
submerged operation. It operates by power from a 24-
volt dc motor contained in the pump assembly.
Remove and install the fuel pump according to
instructions found in TM 9-2350-256-20.
Disassemble the electric fuel pump as shown in figure 3-
6. Refer to TM 9-2350-256-20 for disassembly
instructions for the terminal assembly.
3-10 CHANGE 7