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TM 5-4320-305-24
Table 2-2. Organizational Maintenance Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ENGINE CRANKS BUT FAILS TO START
Step 1. Check that 01 L BY-PASS switch has been depressed prior to starting.
Press OIL BY-PASS switch and attempt to start engine (para 2-42).
Step 2. Check air cleaner intake restriction indicator for red band indicating blocked air cleaner elements.
If red band appears in air cleaner restriction indicator and rain cap is not blocked and no damage to
system components is found, replace primary and secondary elements (para 2-26).
Step 3. Be sure that fuel tank fill cap vent is in open position. A closed vent will cause a vacuum in the fuel tank
and not allow fuel to flow freely to the fuel feed pump.
If vent is in closed position, rotate cap vent to open position.
Step 4. Check alinement of 3-way selector valve.
Aline 3-way selector valve to open position (para 2-43).
Step 5. Check for empty fuel tank.
If fuel tank is empty, fill with diesel fuel oil and bleed air from fuel system.
Step 6. Check fuel supply to injectors.
If there is no fuel flow, replace fuel filter and clean fuel feed pump strainer as described in paragraphs
2-30 and 2-32.
Step 7. Check air inlet and turbocharger for obstructions, carbon or dirt buildup on turbocharger impellers, or oil
leaks.
Notify direct support.
Step 8. Check quick release link and lever extension for dirt, corrosion, damage, or loose nuts, washers, bolts,
screws, and quick disconnect fittings.
Clean; tighten hardware and quick disconnect fittings. Replace if severely damaged (para 2-24).
Step 9. Remove and check throttle actuator.
Replace defective throttle actuator (para 2-24).
2-27
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