NutTech123
New Member
Looking for help and/or possibly a wiring diagram or schematic for a hitachi ex-120-3? Had it tore apart for another repair and now the thumb will not open or close. Both open and closed buttons on the joystick have continuity when pressed, but doesn’t seem to have power to the circuit. I can apply pwr/gnd at the switching valve and move in or out fine. Someone has previously patched the wiring so I’m not sure what I’m missing. Fuses all test good…