TM 5-4320-306-10Table 3-1. Operator/Crew Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION3. UNEVEN RUNNING OR FREQUENT STALLINGWARNINGDeath or serious injury could occur if diesel fuel oil is not handled carefully. Use in a well-ventilated area away from open flame, arcing equipment, ignition sources, heaters, or excessiveheat. Be certain that fuel lines and connections are secure. Do not inhale vapor. Do not overfillfuel tank. Engines must be turned off and cooled before refueling. Use proper refuelingprocedures and equipment to avoid spillage. Do not run engines near open fuel containers. DONOT SMOKE.CAUTIONLow air density of high altitude operation will tend to make the engine run hotter. A hightemperature condition may cause abnormal engine operation.Step 1. Check for insufficient fuel supply.Refill low tank. Perform the checks and services of table 2-2, item 19. If tank is empty, notifyorganizational maintenance.Step 2. Check for malfunctioning engine shutdown valve.Perform the checks and services of table 2-2, item 24.Step 3. Check for loose connections or restricted or damaged fuel lines.Perform the checks and services of table 2-2, item 20. Report damaged lines or loose connectionsto organizational maintenance.Step 4. Inspect water separator for water in collection bowl.Perform the checks and services of table 2-2, item 39.Step 5. Check engine air cleaner restriction indicator. If indicator shows red with engine shut off, and no damageto system components is found, replace primary and secondary elements (para 3-8).3-4
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