Posted by RustyR on November 24, 2012 at 14:03:14 from (184.108.40.206):
I have this old dump trk that has a pto driven gear pump that runs the hydraulics. What has happened three times now is that if I run the dump box all the way up, something happens to the pump or valves where it kills the engine. I can let the box down,will still kill the engine like it has pump has no nuetral anymore. Release the pto and it idles fine, engage it & motor dies. If I hold the dump lever forward, pump runs normally and box dumps again. I'ved cleaned the gears in the pump, always don't find anything but problem is gone for awhile again.
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