5
Maintenance and Care
Cleaning the Venting Slots
Thermo Scientific
Multifuge 4KR
5-3
6. Use a neutral cleaning agent with a pH value between 6 and 8 for cleaning.
After some applications their might be ice in the rotor chamber. Let the ice melt and drain it off. Clean
the rotor chamber as described above.
Cleaning the Venting Slots
For cleaning the venting slots proceed as follows:
1. Turn off the centrifuge.
2. Pull out the power supply plug.
3. Remove the lateral fastening screws and demount the venting grid.
Abbildung 5-1.
Open centrifuge
4. Clean the cooling fins carefully with a brush. Make sure you do not deform the cooling fins.
5. Place the venting grid again and fastened the screws thoroughly.
CAUTION
When cleaning, do not allow liquids, especially organic solvents, to get on the
drive shaft or the bearings of the centrifuge.
Organic solvents break down the grease in the motor bearing. The drive shaft could freeze
up.
Screws
