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 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1.      ENGINE WILL NOT CRANK a Check that EMERGENCY STOP switch is not engaged. Pull out switch to disengage. b.    Check that START / RUN / STOP switch is in START position. Place switch in START position. c.    Check if DC CIRCUIT BREAKER is tripped. Reset by depressing pushbutton. d.    Check malfunction indicator module for system fault light. Refer to applicable troubleshooting procedure for fault condition. e.    Check battery wires for proper / secure connection.    Tighten connections. f.     Refer trouble to unit level maintenance. 2. ENGINE CRANKS BUT WILL NOT START a.    Check if  PREHEAT switch was actuated for cold weather operation. Place switch in proper position. b.    Check that mechanical governor speed control knob is in START position and tightened. Adjust control knob and tighten (see item 6, Figure 2-4). c.    With the START/RUN/STOP switch in the RUN position, ensure Governor Actuator Lever (see   item 1) is releasing from magnet. If not, refer trouble to unit level maintenance. d.    Check fuel tank level (refer to para. 3-7). Service fuel tank as required.  Press FAULT RESET pushbutton to reset fault indicator   module.   e.    If operating on AUX FUEL, check that AUX FUEL switch is in ON position. Place switch in ON position.  Press FAULT RESET pushbutton to reset fault indicator module. f.     Inspect for crimped or pinched fuel lines. Straighten flexible fuel lines.  Refer to unit level maintenance if fuel line is damaged. 3-4 Change 1