Auto Recalls for Consumers

1984 MACK MR600P Recall - Campaign #85V159000

 
Auto Recalls For Consumers

1984 MACK MR600P RECALL - #85V159000

RECALL FOR PARKING BRAKE : DRIVELINE : HYDRAULIC : HOSES, LINES/PIPING, AND FITTINGS

THE QUICK RELEASE VALVE SUPPORT BRACKET MOUNTED ON THE AXLE MAY CRACK. THIS CAUSES FATIGUE FAILURE OF THE STEEL AIR LINES LEADING TO THE REAR PARKING BRAKES AND CHASSIS SERVICE BRAKES RESULTING IN SUDDEN LOSS OF AIR PRESSURE. CONSEQUENCE OF DEFECT: THIS SUDDEN LOSS OF AIR TO THE BRAKE CHAMBERS WILL RESULT IN AUTOMATIC ACTUATION OF REAR PARKING BRAKE CAUSING SUDDEN REAR WHEEL LOCKUP WHICH MAY CONTRIBUTE TO AN ACCIDENT.

Information provided by the National Highway Traffic Safety Administration.

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Vehicle 1984 MACK MR600P
Manufacturer MACK TRUCKS, INCORPORATED
Manufactured between 7/1/1984 - 10/1/1985
Recalled on 12/4/1985
Influenced by MACK TRUCKS, INCORPORATED
Owners Notified on 11/26/1986
# Affected 3,308
Recalled for PARKING BRAKE:DRIVELINE:HYDRAULIC:HOSES, LINES/PIPING, AND FITTINGS
Description THE QUICK RELEASE VALVE SUPPORT BRACKET MOUNTED ON THE AXLE MAY CRACK. THIS CAUSES FATIGUE FAILURE OF THE STEEL AIR LINES LEADING TO THE REAR PARKING BRAKES AND CHASSIS SERVICE BRAKES RESULTING IN SUDDEN LOSS OF AIR PRESSURE. CONSEQUENCE OF DEFECT: THIS SUDDEN LOSS OF AIR TO THE BRAKE CHAMBERS WILL RESULT IN AUTOMATIC ACTUATION OF REAR PARKING BRAKE CAUSING SUDDEN REAR WHEEL LOCKUP WHICH MAY CONTRIBUTE TO AN ACCIDENT.
Consequences
Corrective action INSTALL A REDESIGNED VALVE SUPPORT BRACKET.
Notes SYSTEM: PARKING BRAKES AIR LINES, QUICK RELEASE VALVE BRACKET.VEHICLE DESCRIPTION: MID-LINER TRUCKS.
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