Recall 1990058

The issue

THE MIDLAND AIR BRAKE SYSTEM VALVES ON THESE TRAILERS MAY EXPERIENCE FAILURE AS A RESULT OF HYDROGEN INDUCED EMBRITTLEMENT OF THE VALVE FASTENERS. VALVE FAILURE WOULD RESULT IN LOSS OF AIR PRESSURE TO THE EXTENT THAT THE EMERGENCY SPRING BRAKES WOULD APPLY AND/OR LOSS OF SERVICE BRAKE CAPABILITY WOULD OCCUR ON ONE OR MORE AXLES SERVICED BY THE DEFECTIVE VALVE. FAILURE MODE IS DEPENDENT ON THE TYPE OF VALVE WHICH FAILS (TRAILER RELAY EMERGENCY VALVE, SERVICE EMERGENCY RELAY VALVE, TRAILER SPRING BRAKE CONTROL VALVE). CORRECTION: VALVES WILL BE INSPECTED AND SUSPECT VALVES WILL BE REPLACED.

Description (français)

Les valves du circuit de freinage pneumatique Midland de ces remorques risquent de céder en raison d'une fragilisation de leurs attaches à cause de la teneur en hydrogène. La perte de pression d'air résultant de cette défaillance pourrait se traduire par l'application des freins d'urgence à ressort ou par une perte de puissance des freins deservice à ressort de l'un ou plusieurs des essieux du circuit de la valve défectueuse. Le mode de défaillance est fonction du type de valve touché (valve relais d'urgence de remorque, valve de commande des freins à ressort de remorque).

Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged

Vehicles covered

Model years in this recall

NHTSA complaints and the number of recall campaigns for each model year this recall covers.

Other recalls for the same models

The same models in recall campaigns from NHTSA, Transport Canada, the EU Safety Gate and the Dutch RDW.