Case 580L Series 2 will move in reverse, but will not move forward; it will move for a few seconds and stop. Power is going to transmission electrical coils (made jumpers to isolate transmission and power cuts out before transmission), checked the o-ring and replaced gasket on shuttle valve, have changed inter relay. Any help would be greatly appreciated.
Welcome to HEF tsturgeon! If the power is going to the solenoid, is the solenoid actually working? You should hear it clicking. I have had to replace a few of these. Try to swap the rev & fwd solenoids & see if the problem moves to reverse.
Have not tried that, but will. Thank you so much!
The solenoid is working
I am assuming you have the Carraro shuttle shift transmission. Next place to look is inside the transmission control valve for broken circlip/snap ring. Have a look at this thread as it covers all the info you will need & also links to other relevant threads.
Think this is an electrical problem. Does anyone have a schematic?