My unit is running out of hydraulic oil in the implements, with violent shuddering and then no movement either end. I have got it working for a few minutes by filling the header tank situated over the main pump, enabling me to get it back home. Since then I have replaced the transmission filter...
This unit is causing me much grief! I fill the header tank above the pump, and everything works for a short spell, but then it pumps this oil into the transmission, thus overfilling it. I have replaced the hydraulic filter and removed the valve and spring that seems to isolate the oil flow...
My first ever thread! My JD 400 has a CAV distributor type injector pump which I dismantled because of a lack of power, as it had sat for some time in the past with water in it, but still ran. When apart (and this is a simple job, contrary to what I was led to believe] I found that the governor...