3� 4� 2� How To Remove A Rotor - VWR avantor Micro Star 21 Instruction Manual

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Before installing a rotor
Remove any dust, foreign objects or residue from the chamber, if necessary.
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Inspect the thread and O-ring of the motor spindle. Both parts must be clean and
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undamaged.
CAUTION Do not install the rotor when the temperature difference between the shaft and the
rotor lock is >20 °C. Otherwise the rotor might jam.
3. 4. 2. How to remove a rotor
1. Press the Open button on the control panel to open the lid of the centrifuge.
2. If necessary, remove samples, adapters or buckets.
3. Unscrew the rotor fixation with the Allen wrench.
4. Grasp the rotor in the middle. Pull the rotor directly upwards and remove it from the
centrifuge spindle. Make sure not to tilt the rotor while doing this.
CAUTION Be careful when you change a rotor after a run. The centrifuge spindle and motor may
be hot (>55 °C) and burn your skin.
Operation
If the rotor cannot be properly locked in place after several attempts, then
the rotor fixation is defective and you are not permitted to operate the
rotor. Check for any damage to the rotor: Damaged rotors must not be
used. Keep the drive shaft area of the rotor clear of objects.
Do not force the rotor onto the drive shaft. If the rotor is very light, it may
be necessary to carefully press it onto the drive shaft with little force.
Make sure that the rotor is properly locked on the drive shaft before each
use by pulling at its handle.
Risk of burning on hot surfaces. When installing or removing a rotor
you may accidentally touch the spindle or motor surface. The centrifuge
spindle and the motor may be hot (>55 °C). Be aware of this risk and
proceed carefully when you change a rotor after a run or wait until the
motor has cooled down.
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