Technical Service Bulletin S3750 202311 — 2023 MACK PINNACLE (PI/PN)
POWER TRAIN
Bulletin Details
| TSB ID | S3750 202311 |
| Manufacturer | |
| Vehicle | 2023 MACK PINNACLE (PI/PN) |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
Service Campaign: Certain Mack GR and PI model trucks built with a D3 Dual PTO, have the incorrect length PTO mounting studs installed. With the incorrect studs installed there is a possibly of the retaining nuts coming loose and in certain cases result in a loss of gearbox fluid. Follow the instructions in this service campaign to remove and replace the PTO mounting studs with longer ones.
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.