F1 and F2 Filters
- Turn OFF HR3 (Kaeser) Compressor.
- Close MV101 and MV102.
- Crack open V17 and vent the pressure gently, until you don't hear a gas venting out, and close V17.
- Close V14.
- Drain the oil/contaminants from the two plugs located at the bottom of F1 and F2 filters.
- Close the drain plugs firmly.
- Open V14.