/ JD 1140 Hydraulic Pump noise #11
- Jan 26, 2007
- Coyote Flats,Tx
- JD 4255/Kubota M7040 HDC
I'm probably in correct because it's been many yrs since I supervised repair of JD utility tractor 3 pt control valve seals.Up or down does not matter as it is a close center sisteem .as you start it wil start spraying oil.
If load & depth control internal linkage isn't properly adjusted so valves fully neutralize in fully raised position I was thinking control valves were more likely to leak with 3 pt raised than when 3 pt is in lower position