Cleaning The Non-Return Valve - ifi START UP Benutzerhand- Und Wartungsbuch

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5.2 CLEANING THE NON-RETURN VALVE

Fig.27
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drain, which can be inspected, in order to prevent
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Proceed as follows to clean:
-Open the inspection cap using pliers (Fig. 27).
-Remove any dirt that has been deposited.
-Close it again, tightening the cap suitably and
making sure not to damage the gasket.
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