Mouse balls are now available as FRUs (field replacement units). Therefore if a mouse fails to operate, or should it perform erratically, it may need a ball replacement.
Because of the delicate nature of this procedure, the replacement of mouse balls should only be attempted by specifically trained personnel.
Before proceeding, determine the type of balls your mouse is sporting by examining the underside of the mouse. Local balls will be larger and harder than foreign balls.
Mouse castration or ball-removal procedures differ depending on the manufacture of the mouse. Foreign balls can be replaced using the pop-off method. Domestic balls are replaced by using the twist-off method.
Mouse balls are not usually static-sensitive. However, excessive handling can result in sudden discharge.
Upon completion of ball replacement, the mouse may be used immediately. It is recommended each replacer have a pair of spare balls for maintaining optimum customer satisfaction.
Any customer in need of some balls should contact a local specialist who has his hand in with the removal and replacement of these vital objects.