Im having problems with the electrical side of the hydraulics for the boom, 3rd service and boom in and out. We have changed the solinoid valve and checked the wiring, their both getting a 12v supply then 2.5 on the other positive pin going down to 0.8v and up to 4.1v when moving the switch on the joystick, the booms also not stuck as it can be moved when working the 10mm nut ontop of the spool for boom in and out