ARMY TM 9-6115-644-10
AIR FORCE TO 35C2-3-446-11
MARINE CORPS TM 09249A/09246A-10/1
TEST OR INSPECTION
Table 3-1. Troubleshooting
1. Engine fails to crank.
Step 1. Check that DEAD CRANK switch is in the NORMAL position.
Place switch in NORMAL position.
Step 2. Check that DC CONTROL POWER circuit breaker is energized (in).
If DC CONTROL POWER circuit breaker is deenergized (out), go to Step 4.
Step 3. Check that EMERGENCY STOP switch is out.
Step 4. Defect in Engine Starting/Electrical System, Check battery connections.
If loose or corroded, notify next higher maintenance level.
2. Engine cranks but fails to start.
Step 1. Cold ambient temperature.
If ambient temperature is below 40°F (4°C) turn MASTER SWITCH to START and position
ETHER switch to ON, refer to paragraph 2-9.1.
Step 2. Check for dirty air cleaner element.
Service air cleaner assembly, refer to paragraph 3-3.3.2.
Step 3. Check for dirty fuel filter/water separator.
Service fuel filter/water separator, refer to paragraph 3-3.6.2. If engine still fails to start, notify
next higher maintenance level.
3. Engine starts but stops when MASTER SWITCH is released from START position.
Step 1. Check for proper starting procedure.
Hold MASTER SWITCH in START position until 25 psi (172 kPa) is reached, refer to paragraph
Step 2. Check to see if any FAULT INDICATOR lights are lit.
NO FUEL light is lit, refer to paragraph 3-3.4,2. If any other lights are lit, notify next higher
3-4 Change 1