NHTSA Recall 79V188000
Filed by Motor Coach Industries, Inc. Component: Service Brakes, Air. Reported 1979-08-15. An estimated 748 vehicles are affected. Recall repairs are free at any authorized dealer.
Defect
THE INVOLVED VEHICLES HAVE THE FOLLOWING NON-COMPLIANCES: THE LOW AIR WARNING SIGNAL MAY NOT ACTIVATE UNTIL THE SERVICE RESERVOIR PRESSURE IS BELOW 60 PSI. IN ADDITION, THE BRAKE RELEASE TIME MAY EXCEED 0.55 SECONDS AT THE RIGHT FRONT WHEEL, WHICH CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".
What the manufacturer will do
DEALER WILL ADJUST THE PIN SWITCH TO THE PROPER PRESSURE TO BRING THE VEHICLE INTO COMPLIANCE WITH SAFETY STANDARD NO. 121.
Notes
VEHICLE DESCRIPTION: BUSES, INTERCITY.SYSTEM: SERVICE BRAKES; BRAKE SYSTEM.CONSEQUENCES OF DEFECT: AIR PRESSURE MAY FALL TOO LOW AND VEHICLE OPERATORWOULD NOT BE WARNED. RESULTING PARTIAL LOSS OF BRAKING ACTION COULD CAUSE LOSSOF VEHICLE CONTROL AND AN ACCIDENT. SLOW BRAKE RELEASE TIME WOULD ALSO AFFECTBRAKING PERFORMANCE AND COULD LEAD TO AN ACCIDENT.