Can't seem to get the parking brake to disengage. Parking brake light on the console stays on. But light doesn't come on in the switch. (does this light suppose to come on) I have replace the parking brake switch and parking brake solenoid. Starts up as it should and brake switch releases the hydraulics, but not the parking brake. Relatively new to skidsteers. What else should I be looking at? Arms are down and door is shut. Machine only has about 1100 hours relatively clean machine.