Diesel Engine Generator Trip On Overspeed

Make a list of everything that has changed.

Check each variable, one at a time, until you have checked everything on the list.

Call the service tech and have him come fix the problem. Save the list for him.

Bleeding the injectors should be easy enough, but I don't think that's the problem.

Check the throttle/governor linkage for binding or slack. Did anything get damaged or bent in the move? Is this the only generator on this line?

How much and what kind of load was on the generator when it triipped?

Check the memory in the speed switch for the time/date stamp and rpm of the overspeed condition.

This will allow you to focus effort when the operating condition occured.

I support the govenenor linkage condition being a prime culprit

Perhaps one of your fuel connections is not nipped up tight and it is sucking some air with the fuel.....

Hi,

If your engine generator have controled intergaretion so you should check memory again.

other you should check the governor linkage. it happen when you move the engine.

Thanks.

What is the make of the governor control and actuator?

Is the governor control the same one that contolled another unit?

What is the make and model of the engine?

Your issue will be either in the linkage or it is the govenor on your unit. Some (govenors) are electric over mechanical, so it could be just a bad connection. "Hunting" is a sign the govenor is bad or has a problem within that individual circuit.

Most of my success with governor controlled engines hunting was bad bearings in the governor assuming this unit has a mechanical governor. Also check to see if the generator load is consistent. Binding linkage can also be the culprit so check carefully and lubricate each joint of the linkage.