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Faunsdale, AL | Ron, isn't there an oil cooler relief valve in the trans filter housing that can bypass oil back to the sump if it's defective?
I suppose the front pump could be on its last legs with several cylinders not pumping. This might show up when there is a significant flow demand and be felt better with your hand on the handle of the driver valve vs the levers on the dash controlling the SCV's.
The thing working on another John Deere tractor could mean it has an open center valve in it. Lots of the newer tractors are open center. The old loader valve on our log splitter is or was a closed center valve, but it is behaving like an open center valve now. Lots of chattering even though it does work the splitter when it's on a 4320, but works great on the 5055.
Edited by ccjersey 12/28/2014 16:30
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JOHN DEERE 4020 HYDRAULICS
