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1. Open the filter chamber: Turn the filter cover counter-clockwise
and remove.
2. Remove the dirt filter and replace it with a new one
(0554 3381).
3. Attach the filter cover and lock by turning it clockwise. The rib
on the filter cover must be parallel to the handle.
7.11. Cleaning/replacing the pump
✓ The analyzer box must be switched off and isolated from the
power supply.
1. Empty the condensate container.
2. Place the analyzer box on its front.
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