Installation And Removal Of The Rotor; Loading The Rotor - Hettich EBA 270 Bedienungsanleitung

EN
10

Installation and removal of the rotor

After every fifth removal of the rotor or when installing a new rotor, the fastening nut must be exchanged.
•
Clean the motor shaft (C) and the rotor drilling (A), and lightly grease the motor shaft
afterwards. Dirt particles between the motor shaft and the rotor hinder a perfect seating of the
rotor and cause an irregular operation.
•
Place the rotor vertically on the motor shaft. The driver areas (D) of the motor shaft must be
located in the groove (B) of the rotor.
•
Tighten the fastening nut of the rotor by turning it in the clockwise direction with the wrench
A B
included in delivery.
C D
•
Check the rotor for firm seating.
•
Removing the rotor: Screw the fastening nut off by turning it in the counterclockwise direction.
Lift the rotor off of the motor shaft.
11

Loading the rotor

Standard centrifuge containers of glass will not stand RCF values exceeding 4000 (DIN 58970, pg. 2).
•
Check the rotor for firm seating.
•
With swing-out rotors all rotor positions must be lined with identical hangers.
•
The rotors and hangers may only be loaded symmetrically. The centrifuge containers have to be distributed
evenly on all rotor positions. For authorised combinations see Chapter "Anhang/Appendix, Rotoren und
Zubehör/Rotors and accessories".
Rotor is evenly loaded
•
The centrifuge containers may only be filled outside of the centrifuge.
•
The maximum filling quantity for the centrifuge containers specified by the manufacturer must not be exceeded.
•
When loading the hangers and when the hangers are swivelling out while the centrifuge is running, no liquid may
enter the hangers or the centrifuging chamber.
•
In order to maintain the weight differences within the centrifuge container as marginal as possible, a consistent
fill level in the containers is to be heeded.
•
The weight of the permissible filling quantity is specified on each rotor. This weight may not be exceeded.
38/85
To ensure a tight fit of the rotor, the nut of the rotor must be hand-
tightened.
Not permitted!
Rotor is not evenly loaded
Rev. 11 / 12.2022 AB2300DEENFRIT