TM 10-4930-236-13&P
SECTION IV. TROUBLESHOOTING
4-6. GENERAL
a.
Table 4-2 lists the common malfunctions which you may find during the operation or maintenance of
the tank and pump unit. You should perform the tests/inspections and corrective actions in the order listed.
b.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective
actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
Table 4-2. Unit Maintenance Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1
FUEL WILL NOT BEGIN TO FLOW
Fusible link of valve operator control cable apart or control cable pulled loose.
Reconnect control cable to valve operator mechanism. (Para. 4-17)
2
FUEL FLOW SLOWS OR STOPS DURING OPERATION
Step 1.
Inspect for defective nozzle.
Repair defective nozzle. (Para. 4-10) imp
Step 2.
Check for clogged filter elements.
Replace filter elements. (Refer to TM 10-4330-232-12&P,
3
ELECTRIC MOTOR WILL NOT OPERATE
Step 1.
Check vehicle power supply.
Check that vehicle charging system is operating properly. (Refer to manual for vehicle.)
Step 2.
Check power and control cables. ''
Check continuity of intervehicle and OFF-ON switch control cables. Replace defective
cables. (Para. 4-15, 4-16)
Step 3.
Check electric motor.
Notify next higher level of maintenance.
4
PUMP WILL NOT OPERATE AT RATED CAPACITY
Step 1.
Check differential pressure gauge on filter/separator to determine if filter elements are clogged
or dirty.
Replace clogged or dirty filter elements. (Refer to TM 10-4330-232-12&P)
4-10
