TM 5-6115-596-14
Table 4-2.
Organizational Troubleshooting
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
1.
ALL ENGINE MALFUNCTIONS
All probable causes Refer to TM 5-2805-203-14.
2.
ENGINE CRANKS BUT FAILS TO START
Step 1. Fuel shutoff valve is wrong position or defective
valve.
Open fuel shutoff valve (para 2-5) or replace.
Step 2. Faulty fuel pump.
Refer to TM 5-2805-203-14.
Step 3. Air leak in fuel lines.
Inspect hoses and fittings for leaks. Tighten
fittings or replace defective components (para. 4-18).
Step 4. Air leak in fuel filter.
Replace sediment bowl gasket (TM 5-2805-203-14).
3.
ENGINE NOISE EXCESSIVE
Step 1. Defective mufflers.
Inspect mufflers and replace if defective (para. 4-20).
necessary (para 4-21).
4.
FUEL CONSUMPTION EXCESSIVE
Step 1. Leaking fuel lines or connections.
Inspect hoses and fittings for leaks. Tighten
fittings or replace defective components (para 4-18).
Step 2. Punctured fuel tank.
Inspect fuel tank and replace if fuel leaks are
evident (para 5-12 through 5-15).
5.
ENGINE FAILS TO DEVELOP FULL POWER
Step 1. Restricted air cleaner.
Refer to TM 5-2805-203-14.
Step 2. Misadjusted governor or carburetor,
Refer to TM 5-2805-203-14.
4-8
