Threaded Mode | Linear Mode

davidbrady · (This post was last modified: 02-15-2014 19:10 by travelite.)

(02-13-2014 05:48)ernst Wrote: David,

Clear! I only don't know how the brake interlock feature in my bus would be activated. There is an air-operated front door, but I can drive away with an open door just like that. There used to be a box with a microswitch, a keylock, a relay and a buzzer on the rear window. One needed the same cylinder for locking the emergency window and for switching off the buzzer, so that one wouldn't drive with a locked emergency exit. I removed the box five years ago. And there are microswitches on the two emergency exits, which don't do a thing. Maybe any of those (used to) lock the brakes...?

From your description I understand it is safe to just forget about that button. Am I right?

I'd disregard the switch Ernst. On a Blue Bird it's not surprising to find switches that aren't active. The feature could have been removed by a previous owner or it may have been left out of the original Blue Bird Build Sheet with remnants like dash and micro-switches still in place. Attached is a pic of the typical Brake Interlock; number 75 is labeled VALVE ASSY, AIR BRAKE INTERLOCK. I believe the idea is that full brake air pressure is applied when a door is opened.