KENWORTH W900A 1978: SERVICE BRAKES, AIR:CONTROLS:FOOT CONTROL/VALVE

General Information

NHTSA Campaign ID Number: 82V075000

Make Model Year
KENWORTH W900A 1978
Date Owners Notified Date Received by ODI Date Added to Database
1982-12-01 1982-07-26 1982-08-06

Manufacturers Involved: PACCAR Incorporated

Component: SERVICE BRAKES, AIR:CONTROLS:FOOT CONTROL/VALVE

Potential Number Of Units Affected: 900

Report Initiator: MFR MFR Report

Regulation Part Number: 571

Federal Motor Vehicle Safety Standard Number: 121

Summary

THE HAND VALVE INSTALLED IN THE VEHICLE MAY HAVE BEEN INCORRECTLY POSITIONED. THIS WOULD ALLOW AIR TO ESCAPE FROM BOTH THE FRONT AND REAR SERVICE SYSTEMS SIMULTANEOUSLY IF THE CONTROL LINE TO THE REAR AXLE RELAY VALVES SHOULD FAIL. PERFORMANCE OF FRONT AND REAR SERVICE BRAKES DURING FAILURE COULD BE DEGRADED.

Remedy

THE HAND VALVE WILL BE REPOSITIONED BY THE DEALER, IF NECESSARY, AT NO CHARGE OWNER.

Notes

VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SERVICE BRAKES; HAND VALVE.CONSEQUENCES OF DEFECT: PARTIAL LOSS OF BRAKING CAPABILITY COULD RESULT IN LOSSOF VEHICLE CONTROL AND AN ACCIDENT.