Hermle Z 130 M, Operating Manual, Page: 11 / 24

MAINTENANCE
7 Z 130 M_V1.15 © Hermle Labortechnik GmbH
3. MAINTENANCE
3.1 Maintenance and cleaning
3.1.1 General
Care:
Maintenance of the centrifuge is confined to keeping the rotor, the rotor chamber and the rotor
accessories. Clean as well the accessories especially the sealings of the aerosol-tight rotors and
insert bolts of swing out rotors. Afterwards lubricate the bolts or sealings with the recommended
HERMLE vaseline - order no. 41-5215.
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 – unit, 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. Tempe 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 at 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.
3.1.2 Cleaning and disinfection of the unit
1. Open the lid before you turn off the unit. Disconnect it from the power supply.