ARMY TM 9-6115-464-12AIR FORCE TO 35C2-3-445-1NAVY NAVFAC P-8-624-12Table 4-2. Unit Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION3. ENGINE STARTS CORRECTLY, BUT STOPS WHEN START/RUN/STOP SWITCH IS RELEASED.Step 1.Step 2.Step 3.Step 4.Step 5.Step 6.Defective speed switch.Replace speed switch (para 4-19).Defective START-RUN-STOP switch.Replace switch (para 4-63).Clogged oil filter assembly.Service oil filter assembly (para 4-4)Defective oil pressure switch.Replace low oil pressure switch (para 4-23).High coolant temperature.Refer to malfunction 11 of this table.Low fuel in day tank.Check main tank fuel level. Check transfer pumps for proper operation. Replace if necessary (para4-28). Check fuel solenoid valve for proper operation. Replace if defective (para 4-25). Check daytank fuel level and low fuel cut-off switch for proper operation. Replace if necessary (para 4-24).4. ENGINE STOPS SUDDENLYStep 1.Step 2.Step 3.Step 4.4-10Fuel supply exhausted.Service fuel tank (para 3-45).Air lock in fuel supply line.Bleed fuel system (para 3-21, 3-22, 3-45). Tighten any loose fuel line connections (para 4-33).Obstruction in fuel supply line.Clean or replace fuel supply line (para 4-33).Water in fuel.Drain main fuel tank (para 3-45), fuel filters (para 3-39, 3-22) and day tank (para 3-21).Service fuel system with clean fuel of proper grade (para 3-45).
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