1994 Mack Rb Recalls

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NHTSA Campaign Number: 95E003010
Manufacturer: Mack Trucks, Inc.
Manufactured Begin Date: October 1st, 1992
Manufactured End Date: March 1st, 1995

Defect Summary:
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 OVERPRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.

Consequence Summary:
IF THE AIR DRYER SEPARATES FROM THE BASE, THE CARTRIDGE CAN SEPARATE SUFFICIENTLY ENOUGH TO CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.

Corrective Summary:
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.

Recall Notes:
SYSTEM: BRAKES; AIR DRYER. VEHICLE DESCRIPTION: HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH ROCKWELL WABCO SYSTEM SAVER "1000" OR SYSTEM SAVER "TWIN" AIR DRYER. NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITHIN A REASONABLE TIME, CONTACT MACK AT 1-610-709-3011.ALSO CONTACT THE NATIONAL HIGHWAYTRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.

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NHTSA Campaign Number: 94V206000
Manufacturer: Mack Trucks, Inc.
Manufactured Begin Date: January 1st, 1994
Manufactured End Date: January 1st, 1994
Date of Owner Notification: February 1st, 1995

Defect Summary:
THE STEERING GEARBOX MOUNTING FASTENERS WERE NOT PROPERLY HEAT TREATED.

Consequence Summary:
THE FASTENER WASHERS CAN CRACK, ULTIMATELY RESULTING IN GEARBOX MOUNTING ASSEMBLY FAILURE AND LOSS OF STEERING CONTROL.

Corrective Summary:
DEALERS WILL REPLACE THE SUSPECT WASHERS WITH NEW, IMPROVED WASHERS.

Recall Notes:
SYSTEM: STEERING; GEAR BOX.VEHICLE DESCRIPTION: HEAVY DUTY CLASS 8 TRUCKS. NOTE: IF THE VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITHIN A REASONABLE TIME OR THE REMEDY DOES NOT CORRECT THE DEFECT, PLEASE CONTACT MACK AT 1-800-439-3011. ALSO, CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.