A system is provided for permitting movement of a vehicle having brakes
while an auxiliary component of the vehicle is operated by the vehicle.
The system includes a pressurized fluid source. A control device is
coupled to the pressurized fluid source and the brakes of the vehicle to
release the brakes in response to a first signal and to at least
partially apply the brakes in response to a second signal. A controller
applies the first signal to the control device when at least one of a
first set of conditions exist and applies the second signal to the
control device when a second set of conditions exist.