SERVICE BRAKES, AIR:ANTILOCK
AN ERROR IN THE INSTALLATION OF THE BRAKE AIR LINE RESULTED IN CONNECTING THE FRONT AND REAR AIR BRAKE SUPPLY TANKS IN SERIES WITHOUT A CHECK VALVE BETWEEN THEM. IF AN AIR LEAK DEVELOPS IN EITHER THE FRONT OR REAR BRAKE SYSTEM, BOTH TANKS WOULD BE DEPLETED OF AIR CAUSING BOTH BRAKE SYSTEMS TO BE INOPERATIVE. CONSEQUENCE OF DEFECT: A TRUCK WITHOUT INDEPENDENT FRONT AND REAR BRAKE SYSTEMS IS IN NONCOMPLIANCE WITH FMVSS 121, AIR BRAKE SYSTEMS, WHICH PROVIDES SUCH A SYSTEM TO REDUCE HIGHWAY ACCIDENTS.
Remedy: REWORK PLUMBING FOR BRAKE LINES TO ENABLE FRONT BRAKE SYSTEMS TO BE INDEPENDENTLY FILLED AND PROTECTED FROM REAR BRAKE SYSTEM.
430 vehicles affected
STEERING:LINKAGES
THE STEERING PITMAN ARM CROSS BOLTS ON THE INVOLVED VEHICLES MAY NOT HAVE BEEN SUFFICIENTLY TIGHTENED TO PROPERLY SECURE THE ARM TO THE STEERING GEAR SHAFT. THE BOLT MAY LOOSEN FURTHER DURING CONTINUED VEHICLE OPERATION.
Remedy: DEALER WILL INSTALL THE PROPER CAPSCREW NUT AND WASHER TO SECURE THE ARM CROSS BOLT TO THE STEERING GEAR SHAFT. THIS WILL BE PERFORMED FREE OF CHARGE.
368 vehicles affected
PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE
THE PARKING BRAKE LINKAGE MAY NOT EXERT SUFFICIENT FORCE TO THE PARKING BRAKE SYSTEM TO HOLD THE VEHICLE WHEN PARKED ON A SLOPE.
Remedy: PARKING BRAKE LINKAGE KITS WILL BE MADE AVAILABLE TO REPAIR THE DEFECT.
129 vehicles affected