W&H assistina MB-300 Instructions For Use Manual page 33

Hygiene and maintenance – connection/disconnection of the adaptors
Damaged or leaking O-rings should be replaced immediately (see page 43).
Connecting
Removal
Open the cover. Push on the

adaptor as far as it will go on the
care attachment.
Make sure that it is
correctly positioned.
Unscrew the union nut by hand in a clockwise direction and remove it.

Carefully pull the adaptor off the care attachment.
Firmly tighten the union nut

anti-clockwise by hand (leak
tightness).
33