4. At the front panel, tap the Maintenance icon , then Filters > Replace
5. Remove the filter cover.
6. Remove each filter assembly, and take it somewhere with a non-explosive atmosphere.
7. Position the filter horizontally over a hard surface, with the airflow direction arrow pointing upwards.
Then knock the filter gently against the hard surface until no material drops out of it.
CAUTION: Do not clean the filter with a vacuum cleaner, which could damage it.
CAUTION: Do not press the filter with your fingers, which could also damage it. Hold the filter
fr
ame without touching the filter itself.
182 Chapter 11 Hardware maintenance