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Maintenance and cleaning
eaning:
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The sterilization of the complete S 25 N dispersion tool is possible.
The sterilization of the ball bearing which is assembled on the shaft (2) of
the S 25 NK - 19 G is not possible.
Allowed procedures Sterilization techniques
Damp heat
Autoclave to 121°C at 2 bar positive pressure.
Chemical procedures By germ - killing dissolvent alcohol, phenol,
formalin.... Disinfectant remainders are to be
removed with germ - free water.
Hot air
Germ - killing by hot-air with 160 to 190 °C
(approx. 30 min.).
For cleaning the dispersion tool, operate it in a dissolvent for dissolving
the residuaries of the substance. Due to the large flow rate, rotor and sta-
tor are cleaned to a large extent. The dispersion tool must be divided and
cleaned immediately after working, so that the adhering residuaries of the
substance don't cultivate unwanted bacterial cultures.
S 25 N:
For cleaning purposes disassemble the dispersion tool as described below
(items see front page):
• Unscrew the rotor (9) from the shaft (13) using the generator and shaft
key included in the tool set. The rotor is held fast by means of the gen-
erator key and screwed off from above by turning the shaft using the
shaft key.
• Unscrew the stator (10) from the shaft tube (4) (left-hand thread). Insert
flat key into the front-end slot of the shaft tube. By using the generator
key the stator may now be screwed off in a clockwise direction.
• Pull the shaft (13) out of the shaft tube in a downward direction. The indi-
vidual parts threaded on the shaft (5, 6 and 7) may simply be pulled off.
• The slotted bearing (7) shall be replaced in the case of wear.
S 25 NK:
For cleaning purposes disassemble the dispersion tool as described below
(items see front page):
• Unscrew the rotor (7) from the shaft (2) using the generator and shaft
key included in the tool set. The rotor is held fast by means of the gen-
erator key and screwed off from above by turning the shaft using the
shaft key.
• Pull the shaft (2) out of the shaft tube in an upward direction. Push the
bearing (6) out of the shaft tube (1) by using the bar included with the
tool set.
• The bearing (6) shall be replaced in the case of wear.
The assembly of the dispersion tool takes place in reverse order.
The rotor must not be tightened too strongly, otherwise
NOTICE
the small teeth at the rotor become bent and so the dis-
persion tool gets destroyed.
Spare parts order:
Spare parts diagram see front page.
For orders of spare parts please specify the serial number on the shaft
tube, the type of dispersion tool and the designation of the spare part.
Repair:
Please send the dispersion tool for repair only after it has been
cleaned and is free from any materials which may constitute a
health hazard.
For repair, please request the "Decontamination Certificate" form IKA
or use the download printout of it from IKA
If you require servicing, return the instrument in its original packaging. Stor-
age packaging is not sufficient. Please also use suitable transport packaging.
website: www.ika.com.
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