OFFICIAL NHTSA RECALL
79V241000
Service Brakes, Air:controls:foot Control/valve
Reported Nov 2, 1979 · GRUMMAN FLXIBLE CORP.
Summary
FOREIGN MATERIAL MAY COLLECT UNDER THE BALANCE BEAM OF THE TREADLE VALVE. IF DEBRIS IS ALLOWED TO COLLECT AND REMAIN UNDER THE BALANCE BEAM, COMPLETE ACTUATION OF THE TREADLE VALVE MAY BE IMPAIRED. THIS COULD LEAD TO BRAKE FAILURE.
Consequence
Not supplied in the source record.
Remedy
THE TREADLE VALVE SHOULD BE INSPECTED AT REGULAR INTERVALS FOR ANY FOREIGN MATERIAL THAT MAY HAVE COLLECTED. ALSO, DEALER WILL INSTALL A DEBRIS DISPLACER UNDER THE TREADLE VALVE BALANCE BEAM AT NO COST TO OWNER.
Notes
VEHICLE DESCRIPTION: BUSES.SYSTEM: AIR BRAKES; VALVE, FOOT CONTROL.CONSEQUENCES OF DEFECT: BRAKE FAILURE CAN CAUSE LOSS OF VEHICLE CONTROL AND AVEHICLE ACCIDENT.NOTE: BINDING OF THE TREADLE VALVE OR SLOW APPLICATION OF BRAKES SHOULD PROVIDEWARNING TO OPERATOR THAT DEFECT EXISTS.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗