Brad Templeton (editor).
This actually comes from an IBM service database.
Mouse balls are now available as a FRU (Field Replaceable Unit). If a mouse fails to operate, or should perform erractically, it may be in need of ball replacement. Because of the delicate nature of this procedure, replacement of mouse balls should be attempted by trained personnel only.
Before ordering, determine type of mouse balls required by examining the underside of each mouse. Domestic balls will be larger and harder than foreign balls. Ball removal procedures differ, depending upon manufacturer of the mouse. Foreign balls can be replaced using the pop-off method, and domestic balls can be replaced using the twist-off method. Mouse balls are not usually static sensitive, however, excessive handlng can result in sudden discharge. Upon completion of ball replacement, the mouse may be used immediately.
It is recommended that each servicer have a pair of balls for maintaining optimum customer satisfaction, and that any customer missing his balls should suspect local personnel of removing these necessary functional items.
P/N33F8462 Domestic Mouse Balls P/N33F8461 Foreign Mouse Balls