TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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TEST OPTIONS REASON FOR QUESTION Visual inspection KNOWN INFO 10. NO YES Replace fuel pressure regulating valve (para 4-3). b1. ENGINE CRANKS BUT DOES NOT START OR ENGINE STALLS AFTER STARTING (CONT) TM 9-2320-365-20-1 2-106.6 Change 1 Faulty fuel pressure regulating valve. Faulty orifice tube assembly. Faulty cylinder head. POSSIBLE PROBLEMS Malfunction in fuel system. Engine cranking speed OK. Fuel return hose OK. Fuel supply hose OK. Fuel tank OK. Fuel/water separator OK. Fuel transfer pump OK. Fuel transfer hose OK. Fuel filter OK. Fuel tube OK. Does fuel flow from orifice tube? If fuel flows from orifice tube, fuel pressure regulating valve is faulty. Go to step 11 of this fault. TEST OPTIONS REASON FOR QUESTION Visual inspection KNOWN INFO 11. Faulty orifice tube assembly. Faulty cylinder head. POSSIBLE PROBLEMS Malfunction in fuel system. Engine cranking speed OK. Fuel return hose OK. Fuel supply hose OK. Fuel tank OK. Fuel/water separator OK. Fuel transfer pump OK. Fuel transfer hose OK. Fuel filter OK. Fuel tube OK. Fuel pressure regulating valve OK. If fuel flow is not present, cylinder head is faulty. If fuel flow is present, orifice tube assembly is faulty. Replace orifice tube assembly (para 4-7). YES Notify DS Maintenance. NO Does fuel flow from cylinder head?