574 diesel ran out of fuel ?????

it just died and sounded like it ran out of fuel.but i can see some in the tank.what do i have to do now bleed the lines or what.also how do i go about checking to see if it is getting fuel to the motor.do these tractors have a fuel pump on them or is the fuel gavity fed from the tank..

Hi Kevin,
Make sure fuel filters are not clogged.

The fuel tanks on the 74 series tractors have problems with debris collecting in the bottom of the fuel tank. A quick check is to remove the input fuel line from the tank to the first fuel filter at the front right of the engine and let it flow into a clean bucket. If the fuel does not flow the full of the fuel line then the outlet in the bottom of the tank is clogged. Quick fix is to take an air gun and blow that fuel line back into tank. Permanent fix is to drain the fuel tank and take both outlets out of the bottom of the fuel tank and clean the debris out.
To bleed the system:
1) Each fuel filter(s) has a bleed screw on top of it. Loosen the screw on the top of the closest fuel filter to the fuel tank and let fuel flow until there are no more air bubbles, close this screw and repeat for next fuel filter.
2) There are no bleed screws on injection pump but loosen one of the injector lines at rear of injector pump, put STOP/START/RUN lever in Start position, pull throttle 3/4 open and then attempt to start the engine. Do Not run starter for more than 60 seconds at a time and let starter cool and try again. If engine fails to start, try pressurizing the fuel tank with air gun while cranking starter.

PS my brother's 684 had the remains of a lady bug in the fuel tank that caused similar problems.

JimB

thanks i'll try this and see if it works..

On my old Trojan loader, I use a shop vac on 'blow' rather than the air comp. hose in the tank. Just pack a rag around the end to get a good fit.

There should be bleeders on the fuel filters.

Whatever you do, don't start spraying starting fluid into the air intake to get it running... That's a recipe for a big repair bill.