36
Rotavapor
R-220 EX
6 Maintenance
6.3 Assembling the Snap Flange Coupling
• Insert the snap flange coupling from above, until the pins
in the lock latch into the hole on the lug.
• Close the two segments of the snap flange coupling.
• Turn the snap flange coupling again by 180°, until the
closure lies at the top.
• Lift the two segments of the snap flange coupling to open
them.
• Lay the neck of the glass flask into the middle segment
and raise the flask slightly.
• Pull the segment on the left back slightly and close it until
the hook latches in place.
• Close the segment on the right.
• Insert the closure hook and close the snap flange coupling
with the closure lever. A clear resistance must be felt when
doing this. Otherwise no seal can be fully guaranteed.
6.4 Removing the Evaporating Flask Seal
• Seal the holder for the seal by 180°, until the opening
faces up.
• Take hold of the seal with both hands, from above and
from the front, and pull it out slowly.
• Tilt the seal slightly and carefully pull it all the way out. Be
care ful not to damage the glass centering bulge when
doing so.
• Remove the vapor duct.
Fig. 6.3: Removing the evaporating flask seal
Fig. 6.2: Assembling the snap flange coupling
