Sigma 2-5, Руководство по эксплуатации

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Operating Manual SIGMA 2-5, page 26 of 55
03/06
3.3 Installation of Rotors and Accessories
1. Open centrifuge lid by pressing the Lid-key.
2. Unscrew rotor tie-down screw from motor shaft (anticlockwise).
3. Lower the rotor straight down onto the motor shaft.
4. Tighten the tie-down screw (clockwise) with the rotor wrench with approx.
5 Nm.
In the event of frequent use the tie-down screw must be loosened by some
turns and fastened again. This should be done once a day or after approx.
20 cycles. This ensures a proper connection between rotor and shaft (please
refer to chapter 6.2 "Care and cleaning of accessories" as well).
5. Use only appropriate vessels for the rotor (please refer to chapter 1.2
"Suitable accessories" as well).
6. Fill vessels external to the centrifuge.
7. Put or screw on covers of vessels.
8. Opposite places of the rotors must always be loaded with same accessories
and same filling.
9. In angle rotors the plastic vessels must always be totally filled to avoid cracks
of vessels and leakages or loosening of the caps in case of partial filling.
Attention, follow the special comments of chapter 1.5.
10. Attention: The centrifuge will absorb smaller differences im weight when
loading the rotors. But it is recommended to balance the vessels as
accurately as possible in order to ensure a run with minimal vibrations.
11. Don’t fix the rotor screw without a rotor. Otherwise you ‘ll distroy the shaft.
12. Rotors with lid should always be run with their lid. The rotor lid is tightened by
the lid screw or by hand if you use a lid with a knurled screw. Correct
fastening must be ensured. Attention: The lid screw serves for fastening
of the lid onto the rotor only, not for fastening of the rotor onto the
drive! Before installation of the lid, the correct fastening of the rotor fixing
screw must always be checked using a wrench.