There is a schrader valve in the compartment below the driver's seat of my MC5a. I had assumed it was for airing up the bus. I hook into it yesterday and found that it did not air the bus nor even fill the air bags. I stepped on the brake pedal and there was no musical "whoosh". I than released the DD3 park brake and the bus rolled. Is this valve there to be able to move the bus if disabled?
Yes, this can be connected to a wreckers air supply when towing to prevent DD3s from locking the rear wheels. Jack