Buchi V-600 - Cleaning the Casing; Cleaning Glass Components; Cleaning Internal Pump Tubing

BÜCHI Labortechnik AG Cleaning and servicing | 7
Operation Manual Vacuum Pump V-600 41/65
7.1.3 Cleaning the casing
IMPORTANT
Risk of acid damage
The casing of the unit is made of plastic. Acid may damage the material.
u Immediately remove any drops of acid with a damp cloth.
u Use a damp cloth to clean the device.
u To clean the casing, only use ethanol or soapy water.
7.1.4 Cleaning glass components
On the front of the V-600 there is an inspection window made of glass. That inspec-
tion window may mist over or become dirty from vapors.
u Remove the casing front, see Chapter7.2.2 "Dismantling and reassembling pump
head", page43.
u Rinse inspection window in front cover with water and a conventional cleaning
agent (e.g. mild soap and water solution).
u Wipe inspection window dry with a cloth.
u Refit front cover and screw in place.
The accessories (Woulff bottle, secondary cold trap, secondary condenser) consist
mainly of glass and must always be inspected before and after use and cleaned as
necessary.
As the glass components are under vacuum when in use, they are subjected to high
stress.
u Secondary cold trap and secondary condenser: disconnect all tubing and remove
from the vacuum pump.
u Woulff bottle: unscrew the glass part from the holder.
u Check the glass components for cracks, chips and other signs of damage.
u Replace any damaged glass components.
u Rinse out glass components with water and a conventional cleaning agent (e.g.
mild soap and water solution).
u Wherever possible, clean glass components by hand.
NOTE
Inserting a thin copper wire into the coil of the secondary condenser reduces algae
growth.
7.1.5 Cleaning internal pump tubing
After evacuation, there may still be residual fluid from condensed vapors in the tubing
inside the pump. The pump can largely dry itself out when running idle. See Chap-
ter7.1.2 "Cleaning the pump", page40.
To clean the connecting tubing inside the pump between the two pump heads it is
necessary to open up the pump.
Precondition:
R Pump has been shut down.
u Remove the casing front and take out the pump-head connecting tube (see Chap-
ter7.2.5 "Replacing connecting tubes", page50.
u Rinse out the pump-head connecting tube with acetone. If necessary, remove
residues inside the tubing with a suitable implement.