AUXILIARY PUMP WILL NOT PUMP FUEL-continued

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9.

Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

TANKER SYSTEM (CONT)

5. AUXILIARY PUMP WILL NOT PUMP FUEL (CONT).

Step 7.

Check for defective auxiliary pump relay ground wire. Disconnect blue wire from auxiliary

pump junction box and relay terminal A5. Check resistance of blue wire.

If resistance is more than zero ohms, replace wire, install main, control, and

auxiliary pump junction box covers (paras 7-47, 7-48, and 7-49).

Step 8.

Connect batteries (para 7-91). Check for defective auxiliary pump relay. Set APC AUX-

ILIARY PUMP CONTROL switch to ON.

If AUXILIARY PUMP does not run, replace auxiliary pump relay (para 7-48), install

main and control junction box covers (paras 7-47 and 7-49).

Change 5

2-233