Another part of the anti-vibration system is the balance ring attached to the front of the drum. This balance ring contains several heavy steel spheres as counterweights and is filled with a viscous fluid. When the tub spins, the spheres drift naturally and slowly to a position opposite the out-of-balance load to compensate. The vibration sensor detects the vibration generated by this out of balance load and limits the velocity of the drum until the spheres have had time to regulate themselves. As the vibration is eliminated, the control board allows the motor to increase to full speed. This system eliminates the need for the SpinSense™ system that was included on earlier machines.
Diagram of the balance ring assembly showing the redistribution of the counterweights as they are opposite the load within the drum. |
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