OSHKOSH HB SERIES 1991: WHEELS:LUGS/NUTS/BOLTS/STUDS
NHTSA Campaign ID Number: 91V221000
| Make | Model | Year |
|---|---|---|
| OSHKOSH | HB SERIES | 1991 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1992-01-10 | 1991-12-30 | 1992-01-06 |
Production Dates: 1990-08-01 - 1991-12-01
Manufacturers Involved: Oshkosh Corporation
Component: WHEELS:LUGS/NUTS/BOLTS/STUDS
Potential Number Of Units Affected: 42
Report Initiator: MFR MFR Report
THE WHEEL STUD USED FOR THE HUBS ON THE REAR-STEER WHEELS HAS A DIAMETER TOO SMALL TO HANDLE THE MAXIMUM RECOMMENDED TORQUE, AND WILL SUFFER FROM A FATIGUE FAILURE FROM THE CYCLIC STRESSES OF VEHICLE USE AND THE TORQUING OF THE WHEEL NUT.
FAILURE OF ONE WHEEL STUD CAN LEAD TO SUBSEQUENT FAILURESOF ALL THE STUDS ON THE HUB, LEADING TO SEPARATION OF THE WHEEL AND TIREASSEMBLY FROM A VEHICLE, RESULTING IN LOSS OF STEERING CONTROL AND AN ACCIDENT.
REPLACE THE WHEEL STUD WITH A NEWER, WIDER DIAMETER WHEEL STUD.
SYSTEM: WHEELS.VEHICLE DESCRIPTION: HEAVY TRUCKS WITH REAR-STEER AXLES USED AS SNOW BLOWERS ORSNOW PLOWS.
