1-13
Specifications and Preinstallation Requirements
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 spindle hub to ensure that the rotor does not slip during
acceleration. Some Beckman Coulter rotors, including the JA-10, the
JS-7.5, and the JA-14, were originally manufactured without drive
pins because pins were not needed when these rotors were used in
older model centrifuges.
Figure 1-5. Checking the Rotor for Drive Pins
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.
Rotor
Drive
Hole
Drive Pins
(Angled pins shown;
pins can also be
vertical or horizontal.)
Drive Spindle Assembly
Top View
Side View
B
EC
KMA
N
B
E
CKMAN
