FUEL SERVICING RATE IS SLOW OR NO FLOW.

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

TANKER SYSTEM (CONT)

6. FUEL SERVICING RATE IS SLOW OR NO FLOW.

NOTE

AUXILIARY PUMP is designed for 25 GPM (95 L) fuel flow and primary pump for

300 GPM (1135 L) flow rate.

Step 1. Check if V3 suction line valve is binding or sticking when opening or closing

(TM 9-2320-279-10).

Replace binding or sticking V3 suction line valve (para 25-17).

Check for defective air actuator system. Remove airhose from V5 air actuated flow valve.

Step 2.

Operate HAV HAND ACTUATED CONTROL VALVE (TM 9-2320-279-10). Check for air

blowing from hose and for continuous exhausting of air from HAV HAND ACTUATED

CONTROL VALVE.

If no air, or if HAV HAND ACTUATED CONTROL VALVE continuously exhausts air,

repair HAV HAND ACTUATED CONTROL VALVE (para 18-16).

Check that V5 air actuated flow valve fully opens. Open V5 air actuated flow valve with

Step 3.

wrench.

Replace defective V5 air actuated flow valve (para 25-19).

Remove VT VENTURI piping (para 25-11 and 25-36) and check VT VENTURI and piping for

Step 4.

damage, dirt, and debris.

Remove dirt and debris from VT VENTURI and piping. Replace damaged VT

VENTURI and piping.