AUXILIARY PUMP WILL NOT PUMP FUEL-continued

9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

2-15. TROUBLESHOOTING INSTRUCTIONS (CONT).

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

TANKER SYSTEM (CONT)

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

Step 9. Check for fuel in V16 AUXILIARY PUMP CHECK VALVE. Remove cap. Check for damage,

dirt, and debris. If no fuel, AUXILIARY PUMP must be primed.

Remove disk assembly from V16 AUXILIARY PUMP CHECK VALVE. Remove dirt

and debris. Pour about 1 gal (4 L) of fuel in tank into V16 AUXILIARY PUMP

CHECK VALVE. Install disk assembly and cap. Replace damaged V16 AUXILIARY

PUMP CHECK VALVE disk or spring (para 25-29).

Step 10. Remove auxiliary pump inlet piping (para 25-11, pipe No. 2). Check piping and

AUXILIARY PUMP for dirt and debris,

Remove dirt and debris from piping and auxiliary pump inlet.

Step 11. Remove auxiliary pump outlet to V16 AUXILIARY PUMP CHECK VALVE piping

(para 25-11, pipe No. 7). Check piping and AUXILIARY PUMP for dirt and debris.

Remove dirt and debris from piping and auxiliary pump outlet.

If problem remains, replace AUXILIARY PUMP (para 25-7).