PARKING BRAKE:CONVENTIONAL:MECHANICAL
THE PARKING BRAKE LEVER MAY NOT TRAVEL FAR ENOUGH OVER CENTER TO ASSURE THAT IT REMAINS IN THE PROPER POSITION ALLOWING THE VEHICLE TO ROLL AWAY WHILE PARKED.
Remedy: DEALERS WILL REMOVE AND REPLACE THE PARKING BRAKE LEVER WITH A LEVER THAT REQUIRES A 25 LB. EFFORT TO RELEASE.
3,050 vehicles affected
SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVER PRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.
Remedy: DEALERS WILL EQUIP AIR SYSTEMS WITH A PRESSURE RELIEF VALVE TO BE LOCATED BETWEEN THE COMPRESSOR AND THE AIR DRYER. THIS PRESSURE RELIEF VALVE IS INTENDED TO VENT IF EXCESSIVE PRESSURE DEVELOPS IN THE AIR DRYER.
18,500 vehicles affected
SERVICE BRAKES, AIR:DRUM:CHAMBER
THE BRAKE CHAMBER MOUNTING STUDS CAN LOOSEN OR PULL THROUGH DUE TO FATIGUE IN THE BRAKE CHAMBER HOUSING CAUSED BY FOUNDATION BRAKE CHATTER.
Remedy: DEALERS WILL CHANGE THE BRAKE LINING MATERIALS, REPLACE THE WING BRACKET WITH A REINFORCED BRACKET AND INSTALL BRAKE CHAMBERS WITH REINFORCED CHAMBER HOUSING AND LARGER (1/2") MOUNTING STUDS.
5,700 vehicles affected