23
BÜCHI
Rotavapor
R-220
6 Maintenance
6
Maintenance
Please note all rules aimed at keeping the rotary evaporator
in a functional condition. These also include periodic cleaning
and inspection for any damage that might have occurred.
Make certain that supply of power to the unit has been inter-
rupted before doing any maintenance work on the unit. Always
support the bath from below, on the underside of the bath
whenever doing any repair work.
6.1
Taking Apart the Snap Flange Coupling
•
Close the two segments of the snap flange coupling.
•
Turn the snap flange coupling by 180°, until the closure
faces down.
•
Have Tool No. 20075 ready at hand.
•
Reopen the closure.
•
Lift the 1
st
segment of the snap flange coupling to open it.
•
Lift the 2
nd
segment of the snap flange coupling to open it.
•
With three fingers at the tip, reach under the middle seg-
ment and raise it up.
•
Insert Tool No. 20075 in at the side, between the lugs on
the positional lock. Turn lightly until the pin becomes un-
latched. Take the snap flange coupling assembly off.
•
Clean the snap flange coupling.
Fig. 24: Snap flange coupling, closed
