SERVICE BRAKES, AIR:CONTROLS:FOOT CONTROL/VALVE
Jun 8, 1987
50 units potentially affected
The defect: SINGLE CHECK AIR SYSTEM VALVE MAY MALFUNCTION DUE TO CORROSION.
The risk: AIR COULD TRANSFER BETWEEN CIRCUITS OF DUAL AIR BRAKESYSTEM IN EVENT OF FAILURE OF ONE OR THE OTHER CIRCUIT, WHICH COULD CAUSEDEPLETION OF THE ENTIRE AIR SYSTEM.
The remedy: REPLACE CHECK VALVES, AS NECESSARY.
PACCAR, INCORPORATEDView on NHTSA.gov