TM 1-1740-221-13&P&P
FIELD MAINTENANCE
FUEL TANK
INITIAL SETUP:
Personnel Required
Tools and Special Tools
91B, Light Wheel Vehicle Mechanic
General Mechanic Tool Box (WP 0157, Item 24)
Torque Wrench, 0 to- 50 ft. lbs. (WP 0157, Item 26)
References
Materials/Parts
Cleaning Solution
Tape, Anti-Seize (WP 0156, Item 50)
INSPECTION
Inspect fuel tank, fuel iller cap, fuel level sender wiring and mounting, tank protector strips/straps, tank ittings and
hoses for leaks, rust, corrosion and security of mounting or any damage that affects serviceability.
END OF TASK
REMOVAL
WARNING
Fuel vapors create ire and explosion hazards. Do not allow any open lame, smoking materials,
or other potential ignition sources near fuel or the fuel system.
If repairing, clean the tank thoroughly before sending to the welding shop. Fill tank with an inert
gas, such as carbon dioxide or nitrogen or completely ill with water to minimize risk of serious
injury or death from ire or explosion, before having fuel tank repaired.
1.
Disconnect negative battery cables (WP 0111).
2.
Remove rear deck plate and middle deck plate (WP 0028).
3.
Remove rear deck plate support (WP 0028).
4.
Place a 20 gallon drain container under the fuel tank drain plug. Plug is accessible from the bottom of the
vehicle.
5.
Remove fuel tank cap (Figure 1, Item 5) and store for reinstallation.
6.
Disconnect both fuel lines (Figure 1, Item 14) at fuel tank and plug.
WARNING
The use of Personal Protective Equipment (PPE) is required when using or handling hazardous
materials associated with operating and maintaining equipment (jet fuel, hydraulic luid, brake
luid, ethylene glycol, cleaning solvents, compressed air, and engine/axle oil). Failure to use
PPE when handling these materials could result in injury or death.
7.
Carefully remove fuel tank drain plug (Figure 1, Item 10) and allow tank to drain.
8.
Remove fuel drain container and dispose of fuel at the waste collection site.
9.
Disconnect fuel sending unit wiring (Figure 1, Item 2) and tag wiring leads. Tie wiring harness to side to avoid
interference with the removal of fuel tank.
10. Remove two bolts and nuts (Figure 1, Item 11 and 12) securing one end of tank straps to the vehicle.
11. Remove 2 bolts, nuts and washers (Figure 1, Item 7, 8 and 9) securing the other end of tank straps to
the vehicle and remove straps (Figure 1, Item 6).
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