This service bulletin outlines the steps to adjust the air/fuel mixture on the Spheros auxiliary heater...
Mci technical service bulletin SB 3133 for 2017-2020 Mci D4500.
- Bulletin number
- SB 3133
- Component
- Equipment adaptive/mobility
- 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.
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