MACK CV Recalls

Apr 12, 2006 – ON CERTAIN TRUCKS, AN AIR SYSTEM HOSE WAS INSTALLED RATHER THAN THE REQUIRED HIGH-PRESSURE POWER STEERING HOSE BETWEEN THE MAIN AND SLAVE STEERING GEAR.

Jul 28, 2005 – ON CERTAIN TRUCKS, THE BOLT THAT ATTACHES THE PITMAN ARM TO THE STEERING GEAR MAY NOT BE TIGHTENED PROPERLY.

Jul 07, 2005 – ON CERTAIN HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH HOLLAND AIR SUSPENSION SYSTEMS, A TRANSVERSE BEAM CASTING MAY FRACTURE UNDER NORMAL LOADS. IF A CASTING BREAKS WHEN THE VEHICLE IS TRAVELING ON A ROADWAY THERE IS THE POTENTIAL FOR PIECES OF THE CASTING TO BECOME PROJECTILES AND THE SUSPENSION'S TRANSVERSE BEAM MAY DROP DOWN LOW ENOUGH TO CONTACT THE ROAD SURFACE.

Mar 29, 2005 – ON CERTAIN HEAVY-DUTY, CLASS 8 TRUCKS, THE LOWER AND UPPER STEERING SHAFT PINCH BOLTS WERE IMPROPERLY TIGHTENED.

Nov 01, 2004 – ON CERTAIN TRUCKS, THE FUEL TANK MOUNTING STRAP WAS NOT WELDED TO SPECIFICATIONS AND MAY FAIL. THE FUEL TANK STRAP SUPPORTS AND FASTENS THE STEPS FOR THE OPERATOR AND PASSENGER TO ENTER AND EXIT THE CAB.

Jun 07, 2004 – ON CERTAIN CLASS 8 CHASSIS BUILT WITH HENDRICKSON LIFT AXLES WHICH CONTAINED WEBB BRAKE DRUMS, THE BRAKE DRUMS COULD EXPERIENCE PREMATURE CRACK OF THE BRAKING SURFACE RESULTING IN REDUCTION OR COMPLETE LOSS OF BRAKING ON THAT WHEEL END OR LOSS OF BRAKE DRUM PIECES.

Mar 04, 2004 – CERTAIN TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE FRONT BRAKE CHAMBER ON SOME 18,000 LB. AND 20,000 LB FRONT AXLE ASSEMBLIES IS TOO SMALL TO MEET STOPPING DISTANCE REQUIREMENTS.

Oct 27, 2003 – ON CERTAIN CHASSIS EQUIPPED WITH DEFIANCE METAL FUEL TANK SUPPORT BRACKET ASSEMBLIES, THE FUEL TANK BRACKET WAS NOT WELDED PER SPECIFICATION. THIS CAN CAUSE THE FUEL TANK TO SEPARATE FROM THE CHASSIS DURING ASSEMBLY OPERATION.

Aug 01, 2003 – ON CERTAIN CHASSIS, THE WELD THAT ATTACHES THE BALL SOCKET END TO THE STEERING BOOST CYLINDER HOUSING COULD CRACK AND FAIL.

Jul 17, 2003 – CERTAIN HEAVY DUTY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." IMPROPER SEATING OF THE CHECK VALVE RETAINER IN THE BRASS FITTING HOUSING HAS OCCURRED. IT IS POSSIBLE FOR THE AIR BRAKE SYSTEM PRESSURE TO PUSH THE CHECK VALVE INTERNAL PARTS INTO THE PRIMARY SYSTEM RESERVOIR AND A VEHICLE OPERATOR WOULD NOT KNOW THAT THIS HAS HAPPENED.