Technical Service Bulletin FDM-TSIB-023 — 1991 OSHKOSH S SERIES
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | FDM-TSIB-023 |
| Manufacturer | |
| Vehicle | 1991 OSHKOSH S SERIES |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
This bulletin provides instruction on replacing the frame ground stud nut located at the rear of the vehicle on the inside right-hand frame rail. Engineering has changed the nut from a jam nut to a lock nut after receiving reports of the jam nut being loose when inspected.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.