TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 1319 of 1393
REMOVAL
WARNING
Diesel fuel is flammable. Do not perform this procedure near open flames. Failure to comply
may result in injury or death to personnel.
NOTE
Procedures for changing personnel fuel burning and engine coolant heater electric fuel
pumps are similar, this procedure is for personnel fuel burning heater electric fuel pump.
1.
Disconnect connector (Figure 1, Item 2) from electric fuel pump wire (Figure 1, Item 5).
CAUTION
When disconnecting lines and hoses from pump, immediately plug all open ports. Failure to
comply can cause damage to pump.
NOTE
•
Tag all lines and ports for installation.
•
Use drain pans to retain leaking/draining fluids. Refer to local procedures and plans for
preventing and responding to fluid spills and leaks. Comply with local regulations when
disposing of clean up material and leaked and spilled fluids.
2.
Disconnect fuel inlet line (Figure 1, Item 7) and outlet line (Figure 1, Item 1) from adapter fittings
(Figure
1,
Item
3).
3.
Remove two screws (Figure 1, Item 4), locknuts (Figure 1, Item 9), and electric fuel pump (Figure 1, Item 6)
from left-hand splash panel (Figure 1, Item 8). Discard locknuts.
TM 9-2320-272-23-4
0762
0762-2
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