On my 863-F .. I am working out all the "problems".it came with. Next is the parking brake / Traction lock. I have checked the fuse (good). When I sit in chair/ lap- bar down I hear a POP... sounds like it's working. But NO parking brake. Are they the same? I tried to remove the Brake Traction Solenoid and the plunger is stuck in there. To see if the Guts are in there ( people remove parts) Does it Unscrew or how does it come out? Plunger part I have checked the parking brake wire (single wire) as far as I can follow it. What else should I be checking for? I will need a brake. Thank you. Todd