Had to replace engine to pump coupler on 2013 Volvo MCT135C / JCB300T, we pulled all lines from pump, unbolted, moved back 6 inches, slipped in new coupler, bolted all back up, everything works bucket wise but can’t get it to move parking brake light button is lit up if you hit the button you can kinda hear a click but light won’t go off releasing brake, any ideas !?
Could you have an air locked line to the park brake solenoid, or the pump that feeds it is air locked itself. Worth checking to rule out. Simon C
I just saw in my manual a way to bleed the system z?!