Cleaning And Disinfecting Of The Unit; Cleaning And Disinfecting Of The Rotor; Disinfection Of Aluminum Rotors - Hermle Z 366 K User Manual

MAINTENANCE
ATTENTION: Autoclaving, mechanical stresses and contamination, by chemicals or other
aggressive solvents, can impair the aerosol-tightness of the rotors and buckets.
- Check the integrity of the seals of the aerosol-tight rotor lids or caps, before each use.
- Use only aerosol-tight rotor lids or caps, if the seals are undamaged and clean.
- Plastic lids and seals of aerosol-tight aluminum rotors and aluminum buckets must be replaced
after ten autoclaving cycles.
- Never store aerosol-tight rotors or buckets closed.

3.1.2 Cleaning and Disinfecting of the Unit

1. Open the lid, before turning off the unit. Disconnect from the power supply.
2. Open the rotor nut, by turning the rotor key counter-clockwise.
3. Remove the rotor.
4. For cleaning and disinfection of the unit and the rotor chamber, use the above mentioned
cleaner.
5. Clean all accessible areas of the device and its accessories, including the power cord, with a
damp cloth.
6. Wash the rubber seals and rotor chamber thoroughly, with water.
7. Rub the dry rubber seals with glycerol or talc, to prevent these from becoming brittle. Other
components of the unit, e.g. the lid lock, motor shaft and rotor, should not be greased.
8. Dry the motor shaft with a soft, dry and lint-free cloth.
9. Examine the unit and accessories for damage.
Remove adherent dust, at least every 6 months, from the ventilation slots in the centrifuge, by using
a soft brush.
*Before doing so, please switch off the unit and disconnect from the power supply.

3.1.3 Cleaning and Disinfecting of the Rotor

1. Clean and disinfect: the rotors, rotor lids and adapters, with the cleaner previously mentioned
above.
2. Use a bottle brush to clean and disinfect the rotor bores.
3. Rinse the rotors, rotor lid and adapter, with clear water. Particularly, the drillings of the angle
rotors.
4. When drying the rotors and accessories, set on a towel. Place the angle rotors, with bores
down, to dry.
5. Dry the rotor cone with a soft, dry and lint-free cloth, check for damage. Do not grease the rotor
cone.

3.1.4 Disinfection of Aluminum Rotors

In case of infectious material spilling into the centrifuge, the rotor and rotor chamber have to be
disinfected, promptly after the run. Rotors may be autoclaved, the recommended time for
autoclaving: 15 – 20 min at 121°C/250°F, (2.15 bar).
32 Z366K_V1.22_eng © Hermle Labortechnik GmbH