Beckman rotor moves with difficulty

If your rotor does not turn easily by hand then you probably have a bad motor/bearing and there is nothing else to do except have it serviced as removing and replacing it is difficult.

 

Hi
Thanks. Removing the rotor is not a problem, only swirling is difficult...May be the bearing needs lubrication? Arshad

Arshad, You misunderstand me.  I was not worried about you removing the rotor from the drive assembly, I am concerned about the fact that you said that it is difficult to SPIN the rotor by hand and that should not be the case with that drive motor.  There is no way to really lubricate the bearings in that motor as everything is sealed up so that is why I believe that you are looking at a drive motor replacement.

Don

Thanks Don

It would be expensive to replace the motor. Is there somewhere it is cheaper than getting from Beckman?

Arshad

First, I have o idea where you are located so the availability and costs are factors that O am unaware since I retired over 5 years ago. I also have no idea if there is a readily available replacement part outside of Beckman or of even a 3rd party service group could help you out with that at a "reasonable" price. The fact that the drive motor does not spin at all and is rough to turn by hand is why I believe that it is the source of your problem. However, eyes on an issue for a "factory trained engineer" might see something different. Sorry that I can't be more helpful. Don