Hello everyone. I bought a d4c serial 8CS1 that had, among other things, no hystat in it. I got a new hystat and bolted it in. My issue is, when the lever for the park/ neutral switch is in the park/neutral position, the pumps will charge but brakes are on and machine will stall. When the park lever in other position the pumps (assuming here) won't charge (big difference in line flex observed visually). Also joystick movement to the left or right yields nothing. Only fwd or reverse swash the pumps. This machine has had some electrical gremlins I've worked thru ... Originally unhooking the brake switch could get the pumps to charge but again the brakes seemed applied and engine stall
If the machine has/had electrical gremlins I assume you have an electrical schematic for it. If not one can be arranged.