Posted 12/27/2014 22:46 (#4269070 - in reply to #4268617) Subject: RE: JOHN DEERE 4020 HYDRAULICS
Fruita CO
Where are you returning the oil from the driver valve? It has to be run back into the remote, or else into a ported filter cover or the rockshaft return line. Can't just dump it back into sump.
Destroking the pump won't help or tell you anything if the pressure is 2250-main pump is OK.
JOHN DEERE 4020 HYDRAULICS
