BUCHI Rotavapo R-250 - Manual (Page 27)

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Rotavapor R-250 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 Cleaning
Use commercially available cleaning agents to clean the
glass ware.
Merely wipe the housing off with a damp cloth (without using
any organic solvents).
Use a commercially available de-liming agent to dissolve
resi dues of lime in the bath and flush the bath out well.
Vacuum seal
The vacuum seal should be cleaned according to how much
it is used but every three months as a minimum. See Chapter
6.5 for instructions on how to remove it.
Wipe the sealing lip with a soft dry cloth. Clean the contact
surface of the vapor duct.
Regular care of the seal extends its service life.