Hmmm.... If you don't have one already, now's a good time to get an extra quick attach plate for the 425 and weld a 2" receiver tube to it. Slip in a ball hitch, and weld a 2" hitch socket on the backhoe. Use that to move it longer distances around your place.
The 2" receiver tube on a QA plate is really handy for other things as well.
And:
Thanks for the postmortem photos. Sad, but i pressive, though I found it interesting to see. Fascinating: I had not expected the variable volume pump cylinders to be brass, nor for the Lovejoy to be in as good a shape as it was.And:
Yes! I’m amazed at how good the rest of the pump looks inside. What I call the “swash plate” (that chrome ring that surrounds the shaft) just lays down in there and comes right out. You can see some “chatter” marks on it—I’d think it has to be perfectly smooth. That would probably be hard to find…Thanks for the postmortem photos. Sad, but i pressive, though I found it interesting to see. Fascinating: I had not expected the variable volume pump cylinders to be brass, nor for the Lovejoy to be in as good a shape as it was.
All the best,
Peter
“Loss of charge pressure” and the “case pressure”—could you teach me a little bit more by detailing what they are, and possible causes? Yes, it powers the 4 wheel motors.In looking at the pump failure I would suspect that loss of charge pressure was the cause along with elevated case pressure. If I recall correctly that pump is supplying oil to four wheel motors. If those motors have a case drain and one starts to fail it can cause low charge pressure.
Either way that pump needs some parts.
That year 425 doesn't have case drains on the wheel motors. Don't know about newer ones.In looking at the pump failure I would suspect that loss of charge pressure was the cause along with elevated case pressure. If I recall correctly that pump is supplying oil to four wheel motors. If those motors have a case drain and one starts to fail it can cause low charge pressure.
Either way that pump needs some parts.