TM 5-5420-280-23&P
0103 00
ENGINE FUEL TANK AND DRAIN VALVE REPLACEMENT
WARNING
Fuel is very flammable and can explode easily. To avoid serious
injury or death, keep fuel away from open fire and keep fire
extinguisher within easy reach when working with fuel. Do not
work on fuel system when engine is hot. Fuel can be ignited by hot
engine. When working with fuel, post signs that read NO
SMOKING WITHIN 50 FEET OF PALLET.
CAUTION
Cap or plug all hoses, tubes, connections, and openings immediately
after disconnection to prevent contamination. Remove caps or plugs
prior to installation. Failure to do so may result in damage to
equipment.
NOTE
Have a container ready to catch fuel.
REMOVAL
1.
Remove screw (19), seal washer (18), fuel supply hose (20), and seal washer (17) from fuel tank filter (23)
and drain fuel into container. Discard seal washers (17) and (18).
2.
Remove screw (1), seal washer (26), fuel return hose (2), and seal washer (25) from top of fuel tank (24).
Discard seal washers (25) and (26).
3.
Remove locknut (8), washers (7), screws (15) and washer (14) from side support bracket (6) on fuel
tank (24) and side engine support brackets (13). Discard locknut (8).
4.
Remove four locknuts (22), washers (21), screws (12), washers (11), and fuel tank bracket (16) from
upper engine support brackets (10). Discard locknuts (22).
5.
If damaged, remove insulation strips (9) from upper engine support bracket (10) under fuel tank (24).
6.
Remove two clamps (4) and fuel sight level hose (5) from two elbows (3) on fuel tank (24).
7.
Remove drain valve (28) and seal (27) from fuel tank (24). Discard seal (27).
INSTALLATION
1.
Install drain valve (28) on fuel tank (24) with new seal (27).
2.
Install fuel sight level hose (5) on two elbows (3) of fuel tank (24) with two clamps (4).
3.
If removed, install new insulation strips (9) on engine support bracket (10) under fuel tank (24).
4.
Install fuel tank bracket (16) on engine support bracket (10) with four washers (11), screws (12),
washers (21), and new locknuts (22).
5.
Install fuel tank (24) side support bracket (6) on engine support bracket (13) with washer (14),
screw (15), washer (7) and new locknut (8).
6.
Install fuel supply hose (20) on fuel tank filter (23) with new seal washers (17) and (18), and
screw (19).
7.
Install fuel return hose (2) on top of fuel tank (24) with new seal washers (25) and (26) and
screw (1).
0103 00-2