W&H assistina MB-300 Instructions For Use Manual page 23

Start-up – insertion of the external cleaning ring
 Open the cover. Insert the external cleaning ring.
The external magnetic ring is held in place magnetically.
 Push the connecting hoses, keeping the hoses parallel onto the connection bushes.
You should hear the connection hoses engage.
Clamp the connection hoses into the hose guides.

Close the cover.
(Assistina 3x3)
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