T. Quinlan
New User
Hope someone can help with this problem,I have a 540B John Deere log skidder thats lost all hydraulics. It has a powershift trans,the machine set for 2 years before I bought it and rebuilt the engine,it moves ahead and back with no problem,if it sits overnight the hydraulics will work in the morning for about a minute or 2,then quits.I changed the hyd. filters,trans filter and cleaned the sump screen which wasn't dirty.I checked the supply oil to the main hyd. pump from the trans,I get a gallon or 2 and then it stops with just a slight trickle occasionally after that.Checked trans pump pressure,I got over 175 psi at 2200 rpm. I don't know what else to try,anyone got any ideas?