TM 55-1930-209-14&P-21Table 4-1. Organizational Maintenance Troubleshooting -ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONStep 4. Check proper operation of the throttle air actuator.Replace defective actuator.Step 5. Check for dirty fuel filter.Service fuel filter (Para 3-8).Step 6. Other causes.Notify higher maintenance.4. Engine Consumes Excessive FuelStep 1. Check for fuel leak.Inspect and repair fuel lines as required.Step 2. Check for cold engine operation.Remove, test and replace thermostat (Para 4-8).Step 3. Other causes.Notify higher maintenance.5. Engine Surges at Governed RPMStep 1. Check for air leaks in fuel lines.Tighten fuel line connections.Step 2. Check for clogged fuel filter.Service the fuel filter (Para 3-8).Step 3. Check air system for proper operation.Correct air system defects.Step 4. Other causes.Notify higher maintenance.6. Engine Fails to Reach Governed RPMStep 1. Check for restricted fuel flow.Service fuel filter and strainer (Para 3-8).Step 2. Other causes.Notify higher maintenance.4-8
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