W & H assistina 301 plus, Инструкция по эксплуатации

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13. Service
Regular testing of Assistina
Regular testing of function and safety is necessary:
With each application:
> Check the function display
Once a week:
> Check the filling level displays.
Only O-rings in good condition and correctly positioned will ensure consistently safe and correct maintenance.
Once a year:
> Carry out a function check (Page 16).
> Check the fine filter in the air connection hose for contamination.
> Check the O-rings on the
maintenance attachment.
> Change the O-rings in the
event of visible defects or
every two months.
> Replace any missing O-ring
immediately.
Firmly squeeze the O-ring
between thumb and forefinger
and pull it off.
Push on a new O-ring.