TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 154 of 1176
TM 9-2320-361-24-1
0008 00
0008 00-26
MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WARNING
Diesel fuel is flammable. Do not perform fuel system troubleshooting procedures near open flame,
sparks, or electricity. Injury or death to personnel may result.
1. FUEL WILL NOT
PUMP FROM
COMPARTMENTS OR
PUMPS SLOWLY
1. Check transfer case power takeoff
operation.
2. Check discharge valve operation
for selected compartment.
3. Check delivery pump operation.
If transfer case power takeoff
operation is not operating properly,
perform WP 0008 00, table 9
malfunction 2.
1. If discharge valve operation is
defective, remove and inspect
discharge valve internal
components (WP 0265 00).
2. If discharge valve components are
defective, replace components
(WP 0265 00).
1. If delivery pump screen and filter
separator are not restricted,
remove and inspect delivery pump
internal components
(WP 0280 00).
2. If delivery pump internal
components are defective, replace
components (WP 0280 00).
2. FUEL WILL NOT
GRAVITY DRAIN
FROM SELECTED
COMPARTMENTS
Check discharge valve operation for
selected compartment.
1. If discharge valve operation is
defective, remove and inspect
discharge valve internal
components (WP 0265 00).
2. If discharge valve components are
defective, replace components
(WP 0265 00).
3. FUEL TANK
COMPARTMENT
CANNOT BE
SUCTION FILLED
1. Check transfer case power takeoff
operation.
2. Check delivery pump operation.
If transfer case power takeoff
operation is not operating, refer to
WP 0008 00, table 9, malfunction 2.
1. If delivery pump screen and filter
separator are not restricted,
remove and inspect delivery pump
internal components (WP 0280 00).
2. If delivery pump internal
components are defective, replace
components (WP 0280 00).
Table 10. Fuel Tank Troubleshooting Procedures.
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