Blue Bird 1985 Service Brakes, Air recall
Recalled December 26, 1985 · NHTSA recall 85V171000 · Blue Bird
Description
FMVSS 121 REQUIRES THAT THE AIR OPERATED OIL LINE TO THE WET AIR PRESSURE TANK CONTAIN AN AUTOMATIC HIGH PRESSURE VALVE TO PROTECT THE BRAKE AIR LINES. THIS PRESSURE VALVE WAS OMITTED. CONSEQUENCE OF DEFECT: THE OMISSION OF THE PROTECTION PRESSURE VALVE COULD ALLOW THE AIR LINE PRESSURE TO INCREASE TO THE POINT THAT IT WOULD DAMAGE THE AIR LINES AND WOULD RESULT IN DRAINING AIR PRESSURE FROM THE BRAKE SYSTEM CAUSING LOSS OF BRAKES WHICH COULD LEAD TO AN ACCIDENT.
What to do
ADD PRESSURE PROTECTION VALVE TO THE TEE IN THE AIR ACCESSORY LINE.
Source: U.S. National Highway Traffic Safety Administration. Official recall notice on nhtsa.gov →