OSHKOSH P Recalls

May 05, 2009 – OSHKOSH IS RECALLING 302 MY 2008 T-SERIES, TX, STA, H, P, S AND H-TRACTOR, AIRPORT RESCUE, FIREFIGHTING, COMMERCIAL, CONCRETE MIXER AND MILITARY TRUCKS AND HIGHWAY VEHICLES EQUIPPED WITH HALDEX AIR BRAKE SYSTEM CONTROL VALVE. THE RUBBER DIAPHRAGM USED INSIDE THE QUICK RELEASE VALVE (QRV) MAY DELAMINATE AND MAY CAUSE LEAKAGE LEVELS PAST AND/OR THROUGH THE DIAPHRAGM IN EXCESS OF PERMISSIBLE SPECIFICATIONS, OR COULD CAUSE A RESTRICTION IN THE AIR FLOW, THEREBY EFFECTING PRESSURE DELIVERY TO THE SERVICE BRAKES AND NOT ALLOW THE SERVICE BRAKES TO RELEASE.

Jul 02, 2007 – ON CERTAIN TRUCKS EQUIPPED WITH BENDIX SR-7 SPRING BRAKE MODULATING VALVES, THE INTERNAL RUBBER CHECK VALVE MAY LEAK CAUSING A DELAY IN THE APPLICATION OF THE SPRING BRAKES TO PARK THE VEHICLE AFTER THE OPERATOR PULLS THE DASH VALVE BUTTON.

Jul 11, 2001 – VEHICLE DESCRIPTION: AIRPORT SUPPORT, SNOW REMOVAL, CONCRETE CARRIER, AND MILITARY VEHICLES EQUIPPED WITH DRAG LINK ASSEMBLIES CONTAINING 24-DL MODEL BALL SOCKETS AND MANUFACTURED BY TRW. CERTAIN OF THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW-SPECIFICATION CASE DEPTH AND/OR HARDNESS, WHICH CAN LEAD TO PREMATURE WEAR OF THE SOCKET.

Apr 20, 1993 – THE CROSSHEAD KING PIN FORGINGS OF THE UPPER COUPLING ASSEMBLY CAN CRACK, CHIP, OR BREAK OFF. THIS CAN CAUSE COUPLER SEPARATION.

Oct 27, 1991 – THESE VEHICLES HAVE FRONT AXLES WITH BRAKE CAM OPERATION OPPOSITE TO THE ROTATION OF THE BRAKE DRUM (CAM OPPOSITE), AND THERE IS A TENDENCY FOR BRAKES TO CHATTER UNDER LOW AIR PRESSURE, RESULTING IN VIBRATIONS. THE VIBRATIONS INDUCE STRESSES IN THE TIE ROD END BEYOND ITS ENDURANCE LIMIT, AND RESULT IN CRACKS IN THE THREADED PORTION OF THE STUD WHERE THE TUBE ENDS.

Sep 17, 1985 – CERTAIN FRONT DRIVE STEERING ASSEMBLIES MAY CONTAIN A FAULTY WELD AT THE AXLE BALL FLANGE AND HOUSING CONNECTION. CONSEQUENCE OF DEFECT: WELD FAILURE COULD RESULT IN COMPLETE SEPARATION OF THE WHEEL, TIRE, BRAKE ASSEMBLY, AND STEERING KNUCKLE, CAUSING LOSS OF CONTROL AND POTENTIAL VEHICLE CRASH.

Mar 01, 1985 – LOOSENESS MAY DEVELOP AT THE ATTACHMENT (BALL JOINT) OF THE DRAG LINK TO THE STEERING ARM DUE TO AN INSUFFICIENTLY TIGHTENED RETAINING NUT. THIS CAN WEAR THE STEERING ARM HOLE. CONSEQUENCE OF DEFECT: STEERING LOOSENESS COULD CAUSE HANDLING DIFFICULTY WHICH MAY RESULT IN LOSS OF VEHICLE CONTROL AND AN ACCIDENT.

Jun 20, 1980 – THE FRONT BRAKE ASSEMBLIES INSTALLED ON CERTAIN VEHICLES MAY HAVE BEEN INCORRECTLY ASSEMBLED. THIS DEFECT WILL RESULT IN A DEGRADED BRAKE EFFICIENCY.