TM-9-2330-356-14

SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1990

TM-9-2330-356-14 - Page 155 of 528

TM 9-2330-356-14

Table 4-9. Unit Toubleshooting (Con‘t).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

23.

CENTRIFUGAL PUMP (Con’t)

PUMP FAILS TO DELIVER FUEL (Con’t).

Step

2.

Check for leakage of air into pump or at connections.

Tighten all connections. If gaskets need replacement, notify direct support maintenance.

24.

25.

BATTERY

DEFECTIVE BATTERY

Step 1.

Step 2.

Step 3.

Step 4.

Check specific gravity of battery (para 4-23).

If specific gravity is low, recharge battery (para 4-23). If battery will not charge,

battery. Check new battery charge conditions at frequent intervals (para 4-23).

Check for frayed or broken cables.

Replace cables (para 4-23).

Check for loss of electrolyte in battery.

Service battery (para 4-23).

Inspect for broken terminals.

Replace terminals.

BATTERY DISCHARGED.

Inspect for dirt and electrolyte on top of battery causing constant drain (para 4-23).

Clean battery top.

26.

27.

FILTER/SEPARATOR

FUEL DOES NOT FLOW DURING FUEL SERVICING OPERATION.

Check filter/separator gage reading, If gage registers 25 psi or more, the fuses are clogged.

Replace clogged fuses (para 4-83).

CONTINUOUS SEEPAGE FROM AUTOMATIC DRAIN VALVE.

Inspect for liquid other than water seeping out of automatic water drain valve (fig. 4-127).

Notify direct support maintenance.

replace

4-19