Posted 3/27/2016 10:54 (#5202688 - in reply to #5202053) Subject: RE: International Service Truck Air Brake Question/Problem.
Ne Iowa
What you've probably got there is an AD2 which is basically not serviceable. Replace it with an AD9 for about $150 on EBay. Be sure to get the one with the bracket as the AD9 is bigger around. The governor on top of the compressor is what tells the drier to purge, mine doesn't purge until pressure hits 120 and the compressor shuts off. Nice truck.
International Service Truck Air Brake Question/Problem.
