Maintenance And Servicing; Centrifuge; Rotors And Attachments; Supporting Lugs - Hettich ROTINA 35 Handbuch

22

Maintenance and servicing

Pull the mains plug before cleaning.
Before any other cleaning or decontamination process other than that recommended by the
manufacturer is applied, the user has to check with the manufacturer that the planned process does not
damage the device.
•
Cleaning agents and disinfectants which lie in the pH range 6 – 8 are to be utilised. Alkaline cleaning agents with
a pH value > 8 are to be avoided.
•
In order to prevent appearances of corrosion through cleaning agents or disinfectants, the application guide from
the manufacturer of the cleaning agent or disinfectant are absolutely to be heeded.
22.1

Centrifuge

•
Regularly clean the centrifuge housing and the centrifugal chamber; and if necessary, clean with soap or a mild
cleaning agent and water. For one thing, this services purposes of hygiene, and it also prevents corrosion
through adhering impurities.
•
In the event of condensation water formation, dry the centrifugal chamber by wiping out with an absorbent cloth.
•
If infectious materials penetrates into the centrifugal chamber this is to be disinfected immediately.
•
Lightly grease the rubber seal of the centrifugal chamber after every cleaning.
22.2

Rotors and Attachments

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Rotors and accessory parts must be regularly cleaned with soap or a mild cleaning agent and water in order to
prevent corrosion and changes of material. Cleaning is recommended at least once a week, even better after
every usage.
•
If the rotor or accessory parts are contaminated by pathogenic or radioactive material, a suitable cleaning has to
be executed.
•
The rotors and accessory parts must be dried immediately after cleaning.
•
Angle rotors, containers and hangers made of aluminium are to be lightly greased after drying (Hettich
Lubricating Grease Order No. 4051).
•
With aerosol-sealed rotors and bio safety systems (see Chapter "Anhang/Appendix, Rotoren und
Zubehör/Rotors and accessories") the sealing rings are to be checked and cleaned regularly (weekly). The
sealing ring is to be replaced immediately upon indication of crack formation, embrittlement or abrasive wear.
•
In order to prevent corrosion as a result of moisture between the rotor and the motor shaft, the rotor should be
disassembled and cleaned at least once a month, and the motor shaft should be lightly greased.
•
The rotors and accessory parts are to be checked on a monthly basis for corrosion damage.
Rotors and attachments may no longer be utilised upon indication of wear and tear or corrosion.
22.2.1

Supporting lugs

With swing-out rotors the supporting lugs must be regularly lubricated (Hettich Lubricating Grease No. 4051) in order
to ensure consistent swinging out of the hangers.
22.3

Autoclaving

Swing-out rotors, angle rotors made of aluminium and accessory parts can be autoclaved at 121°C (20 min).
The lids of the rotors and containers must be removed before autoclaving.
Autoclaving accelerates the ageing process of plastics. In addition, it can cause colour alterations in
plastics.
22.4

Broken glass

•
In the event of broken glass the glass splinters and leaking centrifugal material are to be carefully removed from
the centrifugal chamber and from the containers or container drillings.
•
Replace the rubber inserts.
The rubber inserts of the container must be replaced after breakage of glass, because any remaining
glass splinters in the rubber cores could cause further breakage of glass.
•
If this concerns infectious material, a disinfection process is to be executed immediately.
EN
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