Maintenance; Service And Maintenance; Maintenance And Cleaning; Glass Breakage - VWR Clinical 200 Instruction Manual

3.1 Service and maintenance

3.1.1 Maintenance and cleaning

Maintenance:

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). V aseline, readily available, is the most suit a ble lubricant.
The Vaseline must be free of resin and acids. Lubricants containing molycote and
graphite are not allowed.
Please pay special attention to anodized aluminium parts. Breakage of rotors can be
caused even by the slightest damage.
If rotors, buckets or tube racks come in contact with corrosive substances, they
must be cleaned carefully and immediately. Corrosive substances include:
• Alkalis
• Alkaline soap solutions
• Alkaline amines
• Concentrated acids
• Solutions containing heavy metals
• Water-free chlorinated solvents
• Saline solutions, e.g. salt water
Cleaning:
Thorough cleaning not only has its purpose in hygiene but also in avoiding corrosion.
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).
Due to humidity and not hermetically sealed samples, condensate may be formed.
The condensate must to be removed regularly from the rotor chamber with a soft
cloth.
The maintenance cleaning procedure must be repeated every 10 to 15 runs or
at least once a week.

3.1.2 Glass breakage

With high g-values, the rate of glass tube breakage increases. Glass splinters have to
be removed immediately from rotor, buckets, adapters and the rotor chamber itself.
Fine glass splinters will scratch and therefore damage the protective surface coating
of a rotor.
If glass splinters remain in the rotor chamber, fine metal dust will build up due to air
circulation. This very fine, black metal dust will contaminate the rotor chamber, the
rotor, the buckets and the samples.
3 MAINTENANCE