ARMY TM 9-6115-639-13 AIR FORCE TO 35C2-3-386-51 MARINE CORPS TM 10155A-13/1 Table 3-3.  Operator Level Troubleshooting (continued) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 2.     ENGINE CRANKS BUT WILL NOT START  (continued) g.    Check for water in fuel filter / water separator (refer to para. 3-8). Drain water from filter separator by turning valve. h.    Refer trouble to unit level maintenance. 3. ENGINE STARTS AND STOPS a.    Check that electrical connections are properly tightened. Tighten connections. b.    Inspect for crimped, pinched, or leaking fuel lines. Straighten flexible fuel lines.  Refer to unit level maintenance if fuel line is damaged. c.    Check for water in fuel filter / water separator (refer to para. 3-8). Drain water from filter separator by turning valve. d.    Refer trouble to unit level maintenance. 4. GENERATOR SET FAILS TO BUILD UP TO RATED VOLTAGE a.    Check that GROUND FAULT CIRCUIT INTERRUPTER (GFCI) is not tripped. Reset GFCI by depressing button. b.    Check that VOLTAGE ADJUST rheostat is properly set. Adjust rheostat to achieve rated voltage. c.    Check that voltage selector switch access door is fully closed and secured (refer to para. 2-8). Close and secure access door. d.    Refer trouble to unit level maintenance. 3-5