|
Northwest Iowa | My 4020 is 1968 so little different hydraulic valves but i fought the "short on hydraulic oil" symptoms for a while before I dinally got fed up and rebuilt the underhood valves. After that, I'm good to go. Try leaving the 3pt down and see if that helps. That would point to a leak in that circuit. Yours has hydraulic actuated PTO and I am not familiar with that but could be a leak there. I have my doubts that it is the main pump. | |
|
JD 4020 Hydraulic Problems
