W&H assistina MB-300 Instructions For Use Manual page 24

Start-up – removal of the external cleaning ring
Remove the external cleaning ring from the Assistina unit before cleaning and disinfecting.
 Open the cover.
Take out the connecting hoses from the hose guides.
 Disconnect the connecting hoses from the connecting bushes.
Remove the external cleaning ring.

Close the cover.
(Assistina 3x3)
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