Fuel Supply System

Fuel from tank is routed to the fuel supply pump, which pumps fuel through a combination fuel filter, heater and water separator. A fuel shutoff solenoid controls flow of fuel into the injection pump charging circuit (high pressure). With ignition in the "START" or "RUN" positions, the solenoid is energized and fuel is allowed to flow to the injection pump charging circuit. With ignition switch in the "OFF" position, fuel flow to the injection pump charging circuit stops.