Labnet Z400K High Capacity Centrifuge - Manual (Page 17)

Z 400 K / March 1997 17 E
7. 7. 7. 7. 7. Service and Maintenance Service and Maintenance Service and Maintenance Service and Maintenance Service and Maintenance
7.1 Service and inspection of the centrifuge
Centrifuge service and inspection should be done regularly and only by authorized
and qualified personnel.
Use only original spare parts!
7.2 Maintenance and cleaning
Maintenance
The maintenance of the centrifuge confines esentially to keeping clean the rotor
chamber, the rotor and the accessories as well as to the regular lubrication at the
rotor inserts bolts of the swing out rotor.
Vaseline, available in nearly each store, is the most suited lubricat. However,
please ensure that the vaseline has to be free of resin and acid. The use of
lubricants containing molykote and graphite is not allowed.
Please pay special attention to anodized aluminium parts. Breakage of rotors can
be caused even by slight damages.
In case the rotor, buckets or tube racks get in touch with corrosive liquids, the
respective spots and parts have to be cleaned carefully.
Corrosive liquids are for example:
-
alkaline soup-solution
- alkaline amino
- strong acids
- solutions containg heavy metals
- waterfree and chlorinated solvents
- salt solutions e.g. sea-water
Cleaning:
The purpose of a thorough cleaning is, beside hygienical reasons, the avoidance of
corrosion by soiling. In order to avoid the damage of anodized parts such as rotors,
reduction plates ect., only neutral cleaning agents with a ph-value 6-8 should be
used.
Never use an alkaline cleaning agent (ph > 8). After cleaning please ensure that
all parts are dried thoroughly by hand or in a warm-air-cabinet
(max. temperature +50°C).
It is recommended that all anodized aluminum parts are regularly treated with anti
corrosion oil, so that their durability will be increased and the corrosion risk
reduced.
By humidity and non hermetically closed samples, condensate (mist) may be
formed. The condensate (mist) has to be removed regulary with a cloth from the
rotor chamber.