BUCHI Rotavapo R II - Manual (Page 37)

7 Maintenance and repairs
37 R II Operation Manual, Version E
7 Maintenance
This chapter gives instructions on all maintenance work to be performed in order to keep the instru-
ment in good working condition.
WARNING
All maintenance and repair work requiring the opening or removal of instrument covers may only be
carried out by trained personnel and with the tools provided for this purpose.
WARNING
Electrical hazard:
• Prior to all maintenance work on the instrument switch off the power supply and remove all
sources of flammable vapor.
ATTENTION
When you carry out maintenance work at the lower part of the bath, always support it to prevent
instrument damage.
Use only genuine consumables and genuine spare parts for maintenance and repair to assure good
system performance and reliability. Any modifications to the spare parts used are only allowed with
the prior written permission of the manufacturer.
7 .1 Housing
Check the housing for defects (controls, plugs) and clean it regularly with a moist cloth.
ATTENTION
Never use solvents as cleaning agents as these might damage the instrument.
7 .2 Tube connections
Visually examine the tube connections regularly. When tubes become cracked and brittle, replace
them with new tubes.
Grease all joints on the condenser side regularly to achieve optimum tightness of the system.
7 .3 Sealing system
ATTENTION
When removing and reinstalling the seals, make sure not to damage them. Always move them
perpendicularly to the axis of the glass parts and ensure no damage occurs to the sealing lip.
Never apply grease to the seals and never touch them with sharp object, otherwise they will get
damaged.