5.2.3
Installation of Rotors
•
Open the centrifuge lid by pressing the lid key.
•
Unscrew the rotor tie-down screw from the motor shaft (anti-clockwise).
•
Lower the rotor with its central bore straight down onto the motor shaft.
•
Tighten the rotor tie-down screw clockwise with the supplied rotor wrench
with 5 Nm. In doing so, hold the rotor at its outer rim.
•
After frequent use, the rotor tie-down screw must be loosened by some turns
and fastened again. This must be done once a day or after 20 cycles. This
ensures a proper connection between the rotor and the motor shaft.
•
The rotor tie-down screw should only be tightened when a rotor is installed in
order to prevent the collet chuck from being expanded.
3
1
2
1 Angle
rotor
2
Rotor-tie down screw
3 Motor
shaft
Fig. 5.5: Installation of a rotor
Operating Manual SIGMA 1-6P
page 30 of 67
05/2007
Содержание 1-6P
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