TM 10-4320-310-14Table 4-2. Unit Maintenance Troubleshooting (Continued)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONDeath or serious injury could occur It fuel is not handledcarefully. Use in a well-ventilated area away from open flame,arcing equipment, Ignition sources, heaters, or excessiveheat. Always store fuel In properly marked containers. DONOT SMOKE.a.Disconnect hose (1) from double ring piece (2) at fuel tank (3). Turn engine with crank handle (4).b.If fuel does not flow from hose (1), remove non-return valve (5). Check valve by shaking for freemovement of internal valve ball.c.If necessary, clean with fuel. If unserviceable, replace non-return valve (5) (para 4-17).Step 3.Check that fuel flows through fuel system components (fuel tank, fuel lift pump, fuel filter and fuel lines)as engine is cranked by disconnecting component outlet hose(s).Replace defective component.Fuel tank - Refer to paragraph 4-19.Fuel lift pump - Refer to paragraph 4-18.Fuel filter - Refer to paragraph 4-17.Fuel lines - Refer to paragraph 4-17.Step 4.Notify direct support maintenance.4-8
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