Instruction manual

1-14
Specifications and Preinstallation Requirements
USING J2 SERIES ROTORS IN THE AVANTI J
!
CAUTION
Do not use the Beckman Coulter JA-10, JS-7.5,
JA-14, or JS-13 rotors in the Avanti J-26XPI
centrifuge before reading this information.
CHECKING FOR ROTOR DRIVE PINS
Rotors used in Avanti J series centrifuges must have drive pins in
the rotor drive hole (see Figure 1-5). These drive pins engage with
the centrifuge drive spindle hub to ensure that the rotor does not slip
during acceleration. Some Beckman Coulter rotors, including the
JA-10, the JS-7.5, the JA-14, and the JS-13, were originally manufac-
tured without drive pins because these rotors did not need pins to run
in older model centrifuges.
The rotor pins are positioned parallel to the
BECKMAN name engraved
at the center of the rotor body (see Figure 1-5). Knowing the pin
orientation before you install the rotor will help to ensure that you
position the rotor properly on the hub, minimizing the chance of
hub damage.
Check all J2 series rotors for drive pins, and do not use rotors without
drive pins in the Avanti J. To check for drive pins, hold the rotor up or
turn it on its side and look into the drive hole. If you do not see two
metal pins in the hole, call your local Beckman Coulter office for
information on returning the rotor to the factory for upgrading.
USING THE JA-18 ROTOR
In Avanti J series centrifuges, the JA-18 rotor must be run with the
lid in place. See the JA-18 rotor manual (publication J-TB-035) for
complete rotor usage instructions.