TB 9-6115-644-13
4-11
FUEL PUMP MAINTENANCE.
This task covers:
a. Test
c. Replace
b. Remove
d. Install
INITIAL SETUP
Tools
Equipment Conditions
Tool Kit, General Mechanic's
Reference
(item 1, appendix B)
Materials/Parts
None
Generator shut down, TM 9-6115-644-10, Paragraph 2-9.2
Heater shut off, TB 9-6115-644-13, Paragraph 2-4.1.c
TEST
1.
Disconnect fuel line at heater assembly.
2.
Place fuel line into container suitable for catching fuel.
3.
Apply 24 VDC to electrical input of pump. Pump should hum. Fuel will then start flowing into the container.
REMOVAL
WARNING
Disconnect negative battery cable from right battery and the positive
battery cable from the left battery before doing the following
procedures. Failure to observe this warning could result in severe
personal injury or death.
WARNING
Before disconnecting any coolant lines, let generator cool from
operation, then relieve pressure by opening radiator cap carefully.
Coolant is hot and under pressure and may cause severe burns.
WARNING
Catch fuel in a suitable container. Keep spilled fuel away from hot
engine and all fires, and wash with warm water after getting any on
skin. Fuel is highly flammable and is irritating to skin.
1.
Disconnect negative battery cable.
2.
Disconnect electrical leads (12), Figure 4-22, from connector (11) on fuel pump (2).
3.
Loosen screw clamps (3) to disconnect fuel line (6) and butt splice (4) from input end of fuel pump (2). Drain any
fuel from line into a suitable container.
4.
Loosen screw clamp (3) to disconnect butt splice (5) and fuel line (6) from output end of fuel pump (1).
Drain any fuel from line into a suitable container.
