Maintenance; Maintenance And Cleaning; General - Hermle Z 306 Service Manual

11. Maintenance

11.1 Maintenance and cleaning

11.1.1 General

Care:
Maintenance of the centrifuge is confined to keeping the rotor, the rotor chamber and the rotor
accessories clean as well as to regularly lubricating the rotor insert bolts of a swing out rotor (if
available).
The most suitable lubricant is the offered HERMLE High TEF oil – Order no.: 34-5147.
Lubricants containing molycote and graphite are not allowed.
Please pay special attention to anodized aluminium parts. Breakage of rotors can be caused even
by slightest damages.
In case of rotors, buckets or tube racks getting in touch with corrosive substances the concerned
spots have to be cleaned carefully.
Corrosive substances are for instance: alkalis, alkaline soap solutions, alkaline amines,
concentrated acids, solutions containing heavy metals, water-free chlorinated solvents, saline
solutions, e.g. salt water, phenol, halogenated hydrocarbons.
Cleaning – units, rotors, accessories:
- Turn the device off and disconnect it from the power supply before you begin any cleaning or
disinfecting. Do not pour liquids into the housing interior.
- Do spray disinfectant on the device.
- Thorough cleaning not only has its purpose in hygiene but also in avoiding corrosion based on
pollution.
- In order to avoid damaging anodized parts such as rotors, reduction plates etc., only pH-neutral
Detergents with a pH-value of 6-8 may be used for cleaning. Alkaline cleaning agents (pH-value
> 8) must not be used.
- After cleaning, please ensure all parts are dried thoroughly, either by hand or in a hot-air cabinet
(max. Temperature + 50°C).
- It is necessary to coat anodized aluminium parts with anti-corrosion oil regularly in order to
increase their life-spans and reduce corrosion predisposition.
- Due to humidity or not hermetically sealed samples, condensate may be formed. The
condensate has to be removed from the rotor chamber with a soft cloth regularly.
The maintenance procedure has to be repeated every 10 to 15 runs, but at least once a week!
- Connect the unit to the power supply, after the equipment is completely dry.
- Do not carry out disinfection with UV-, beta- and gamma-raysor other high energy radiation.
- Metal rotors can be autoclaved.
- Rotor lid and adapters can also be autoclaved (max. 121°C, 20 min).
- The tube racks are made of PP and can not be autoclaved at 134°C.
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MAINTENANCE
Service Manual Z 306 42