Info Only – Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC...
Peterbilt technical service bulletin 01-085 for 2014-2022 Peterbilt 520.
- Bulletin number
- 01-085
- Component
- Visibility
- Summary
- Info Only – 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.
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