Technical Service Bulletin 01-085 — 2018 PETERBILT 520
VISIBILITY
Bulletin Details
| TSB ID | 01-085 |
| Manufacturer | |
| Vehicle | 2018 PETERBILT 520 |
| Component | VISIBILITY |
| Communication Date |
Bulletin Summary
Info Only â Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service ports simultaneously. A specific tool is available from the supplier that will allow a technician to bypass this design issue.
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.