Technical Service Bulletin SB 3133 — 2020 MCI D4500
EQUIPMENT
Bulletin Details
| TSB ID | SB 3133 |
| Manufacturer | |
| Vehicle | 2020 MCI D4500 |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
This service bulletin outlines the steps to adjust the air/fuel mixture on the Spheros auxiliary heater unit for coaches operating at an altitude greater than 5000 feet above sea level.
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.