2009 Autocar Wxll

STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS

AUTOCAR IS RECALLING 770 MY 2007-2009 WXLL HEAVY DUTY CLASS 8 VEHICLES EQUIPPED WITH RESIDENTIAL FRONT-LOADER APPLICATIONS. THESE VEHICLES MAY DEVELOP CRACKS MAINLY IN THE TOP FLANGE OF THE RH EXTENSION OF THE FRAME RAIL AT THE FRONT SPLAY BREAK WHERE THE RE-ENFORCING STRAPS ARE WELDED. DURING FRONT-LOADER OPERATION, RESIDUAL HYDRAULIC PRESSURE CAUSES THE FRONT LOADER SYSTEM TO PUSH DOWN ON THE BUMPER-MOUNTED BRACKETS, CAUSING VISIBLE DEFLECTION OF THE CHASSIS FROM THE SUSPENSION FRONT HANGER BRACKET FORWARD.

STEERING:GEAR BOX:SHAFT SECTOR

AUTOCAR IS RECALLING 127 MY 2008-2009 ACX, WX, AND WXLL HEAVY DUTY CLASS 8 TRUCKS. INSUFFICIENT TORQUE WAS APPLIED DURING THE ASSEMBLY PROCESS TO THE NUT ON THE PINCH BOLT THAT SECURES THE LOWER STEERING SHAFT TO THE STEERING GEAR BOX. IT WAS FOUND THAT THE TORQUE CONTROLLED TOOL WAS CALIBRATED TO A LOWER TORQUE RATING THAN SPECIFIED FOR THE APPLICATION.

PARKING BRAKE:DRIVELINE:AIR

AUTOCAR IS RECALLING 690 MY 2008-2009 ACX, WX AND WXLL HEAVY DUTY CLASS 8 VEHICLES EQUIPPED WITH QUICK RELEASE VALVES (QRV). THERE ARE QRV'S IN TWO AREAS OF THE VEHICLE. THE FIRST IS IN THE LIFT AXLE AIR LINES. A LEAK IN THAT QRV WOULD AFFECT THE RATE AT WHICH THE TAG/PUSHER AXLE IS LOWERED/LIFTED. THE SECOND IS IN THE PARK BRAKE AIR LINES. A LEAK IN THAT QRV WOULD RELEASE PRESSURE ON THE PARK BRAKE SPRINGS; IF THE LEAD IS LARGE ENOUGH, THE PRESSURE WILL DROP AND SET THE BRAKES ON THE REAR AXLE.

PARKING BRAKE

AUTOCAR IS RECALLING 183 MY 2008-2009 WXLL HEAVY DUTY CLASS 8 VEHICLES. THE PARK BRAKE BUTTON ON THE RIGHT-HAND SIDE OF THE VEHICLE SHOULD AUTOMATICALLY SET THE PARK BRAKE AT 70-PSI DESCENDING PRESSURE ON THE PRIMARY AIR SYSTEM WHEN THE WORK BRAKE IS APPLIED. IN THE AFFECTED VEHICLES, THE PARK BRAKES DO NOT APPLY AUTOMATICALLY AT 70-PSI; INSTEAD, THEY APPLY AT 10-PSI. THE LINES BETWEEN THE PARK BRAKE VALVES MAY BE CROSSED, CAUSING THEM TO APPLY INCORRECTLY.

SERVICE BRAKES, AIR

Autocar, LLC is recalling certain model year 2005-2013 ACX, WX, and WXLL trucks built November 16, 2004, through September 10, 2012. On the affected vehicles, the air brake systems were built without the required air tank drain valve. Therefore, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."