Oshkosh S SERIES recalls by model year

Reported: 1984-09-21 (September 21, 1984) · Model years: 1978, 1979, 1980, 1981, 1982, 1983, 1984

THESE TRUCKS WERE EQUIPPED WITH DEFECTIVE HYDRAULIC PRESSURE SWITCHES IN THE LOAD SPAN TAG SYSTEM. WHEN A MALFUNCTION IN THIS SYSTEM OCCURS, AXLE TO PAVEMENT PRESSURE INCREASES WHEN VEHICLE IS OPERATED IN AN UNLOADED CONDITION.

Remedy: THE EXISTING CONTROL SWITCH WILL BE REPLACED WITH A THREE-POSITION SWITCH WHICH, BY USE OF A NEUTRAL POSITION, WILL PREVE NT PRESSURE BUILDUP. A NEW OPERATION LABEL WILL ALSO BE INCLUDED.

Reported: 1985-03-01 (March 1, 1985) · Model years: 1983, 1984, 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.

Remedy: REPLACE DRAG LINK BALL STUD IF WEAR IS OBSERVED AND/OR TORQUE TO SPECIFICATION.

Reported: 1991-06-04 (June 4, 1991) · Model years: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990

STEP TREAD WAS DESIGNED WITH AN UPTURNED EDGE. ALSO, INCORRECT BOLTS WERE USED TO ATTACH THE STEPS TO VEHICLE; INCORRECT BOLTS MAY FATIGUE AND BREAK ALLOWING THE STEPS TO SEPARATE FROM CAB.

Consequence: PERSONS EXITING THE CAB CAN TRIP AND FALL ON UPTURNEDEDGES. ALSO, FATIGUE OR BROKEN BOLTS COULD CAUSE THE STEPS TO BREAK AWAY AT THETIME THAT A PERSON IS ENTERING OR EXITING THE VEHICLES.

Remedy: REPLACE INCORRECTLY DESIGNED STEPS, REPLACE INCORRECT BOLTS.

Reported: 1988-06-13 (June 13, 1988) · Model years: 1984, 1985, 1986, 1987, 1988

FAN BLADE MAY CRACK AND SEPARATE WHERE THE BLADE OVERLAPS THE SPIDER.

Consequence: SEPARATED FAN BLADE COULD RESULT IN BODILY INJURY TOPERSONS NEAR BY AND ALSO COULD DAMAGE THE ENGINE, RADIATOR, ETC.

Remedy: INSTALL A NEW ALL STEEL FAN.

Reported: 1991-11-04 (November 4, 1991) · Model years: 1991

THE REAR TANDEM AXLE BRAKES DO NOT MEET THE SERVICE BRAKE APPLICATION TIME REQUIREMENTS OF FMVSS 121.

Consequence: FAILURE TO MEET STANDARDS OF FMVSS 121 INCREASES BRAKINGDISTANCE AND INCREASES THE POSSIBILITY OF AN ACCIDENT.

Remedy: THE O.625 INCH NYLON AIR TUBING BETWEEN THE CHASSIS AIR MANIFOLD AND THE TANDEM SERVICE RELAY WILL BE REPLACED WITH .75 INCH NYLON TUBING, WHICH WILL ALLOW BRAKE SYSTEM TO MEET THE SERVICE BRAKE APPLICATION TIME REQUIREMENTS OF FMVSS 121.

Reported: 1992-11-24 (November 24, 1992) · Model years: 1991, 1992

THE STAINLESS STEEL FASTENERS FOR THE CAB ENTRY STEPS AND GRAB HANDLES CAN CRACK AND BREAK.

Consequence: THE STEPS AND GRAB HANDLES CAN SEPARATE FROM THE TRUCKBODY UNDER LOAD FROM CAB OCCUPANTS ENTERING OR EXITING THE CAB, WHICH COULDRESULT IN AN INJURY TO USERS.

Remedy: REPLACE THE STEP AND GRAB HANDLE STAINLESS STEEL FASTENERS WITH GRADE 5 ZINC AND YELLOW COATED FASTENERS. OSHKOSH WILL SEND THE REPLACEMENT FASTENERS TO OWNERS WITH THE NOTIFICATION LETTERS. OWNERS WILL BE REQUESTED TO REPLACE THE FASTENERS ON THEIR VEHICLES, AND WILL BE REIMBURSED FOR THE LABOR TO PERFORM THE REPAIR.

Reported: 2001-11-06 (November 6, 2001) · Model years: 1997, 1998, 1999, 2000

VEHICLE DESCRIPTION: FRONT DISCHARGE CONCRETE CARRIERS WITH 6- OR 8-WHEEL DRIVE DESIGNED TO OPERATE OFF-ROAD IN DIFFICULT SOILS AND TERRAIN THAT ARE BEYOND THE CAPABILITY OF CONVENTIONAL REAR DISCHARGE CONCRETE TRUCKS. THE FRAME RAIL FLANGE IMPINGED ON THE HEAD OF ONE OR MORE LOCKBOLTS WHICH ATTACH THE ANGLE IRON REAR PEDESTAL SUPPORT BRACKET TO THE FRAME.

Consequence: BOLT HEAD IMPINGMENT CAN CAUSE THE PEDESTAL BOLT RETNETION SYSTEM TO LOSE THE SPECIFIED CLAMP LOAD CAUSING THE CONCRETE DRUM TO SEPARATE FROM THE TRUCK CHASSIS, INCREASING THE RISK OF SERIOUS INJURY OR DEATH.

Remedy: OWNERS HAVE BEEN ADVISED TO IMMEDIATELY CHECK ALL BOLTS ON THE REAR PEDESTALS. IF ANY ONE HORIZONTAL LOCKBOLT IS LOOSE OR MISSING, TO IMMEDIATELY REPLACE THE LOOSE LOCKBOLT. OSHKOSH IS PROVIDING REPLACEMENT KITS WITH INSTRUCTIONS AND HAS AUTHORIZED LABOR REIMBURSEMENT. OWNERS WERE CALLED BEGINNING DECEMBER 10, 2000, TO ADVISE THEM OF THIS PROBLEM. AN OWNER NOTIFICATION LETTER WAS SENT TO EACH CUSTOMER ON DECEMBER 15, 2001, TO CUSTOMERS WHO HAD NOT REPLIED TO THE INITIAL COMMUNICATION. OWNERS SHOULD CONTACT OSHKOSH AT 1-920-235-9151.