Known Recalls

Recall campaign · NHTSA 91V187000

Service brakes, hydraulic: foundation components: drum

OSHKOSH TRUCK CORPORATION filed this campaign with NHTSA on 1991-10-27.

Recall campaignNHTSA 91V187000

Service brakes, hydraulic: foundation components: drum

Component
Service brakes, hydraulic: foundation components: drum
Manufacturer
OSHKOSH TRUCK CORPORATION
Vehicles affected
130
Reported to NHTSA
1991-10-27
Owners notified
1991-11-08

Defect description

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.

Safety risk

CRACKS IN THE TIE ROD CAN RESULT IN SEPARATION OF THETIE ROD AND LOSS OF VEHICLE CONTROL WITHOUT PRIOR WARNING.

Manufacturer remedy

REPLACE THE CAM OPPOSITE BRAKE ACTUATION WITH CAM SAME BRAKE OPERATION, BY INTERCHANGING THE LEFT AND RIGHT CAM ASSEMBLIES TO AVOID BRAKE CHATTERING; AND REPLACE TIE RODS.

Notes

SYSTEM: BRAKES AND FRONT SUSPENSION.VEHICLE DESCRIPTION: HEAVY TRUCKS WITH 18000 LBS. DRIVING FRONT AXLES.

Scope of coverage

14 model years across 2 models.

ModelYears on record
OSHKOSH F1991 1990 1989 1988 1987 1986 1985
OSHKOSH P1991 1990 1989 1988 1987 1986 1985

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.