TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TEST OPTIONS REASON FOR QUESTION Visual inspection KNOWN INFO Notify DS Maintenance. 11. YES NO Replace orifice tube assembly (para 4-7). TEST OPTIONS REASON FOR QUESTION Visual inspection KNOWN INFO If fuel flows from orifice tube, fuel pressure regulating valve is faulty. Go to step 11 of this fault. Does fuel flow from orifice tube? 10. NO YES Replace fuel pressure regulating valve (para 4-3). b1. ENGINE CRANKS BUT DOES NOT START OR ENGINE STALLS AFTER STARTING (CONT) 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. POSSIBLE PROBLEMS Faulty fuel pressure regulating valve. Faulty orifice tube assembly. Faulty cylinder head. 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. POSSIBLE PROBLEMS Faulty orifice tube assembly. Faulty cylinder head. Does fuel flow from cylinder head? If fuel flow is not present, cylinder head is faulty. If fuel flow is present, orifice tube assembly is faulty. TM 9-2320-366-20-1 2-114.6 Change 1