CHAPTER 3 MAINTENANCE PROCEDURES
FC5706 Centrifuge Service Manual
3-1
Ohaus Corporation www.ohaus.com
3.1 PREVENTIVE MAINTENANCE
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 as to regularly lubricating the rotor insert bolts of a swing out rotor (if
available).
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 not 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.
