Mouse balls

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IBM's Mouse Balls Standardization....


Alert for IBM Field Engineers to all IBM Branch Offices.

Abstract: Mouse Balls Available as FRU (Field Replacement Unit)
Mouse balls are now available as FRU. 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, replacement of
mouse balls should only be attempted by properly trained personnel. Before
proceeding, determine the type of mouse balls by examining the underside of
the mouse.

Domestic balls will be larger and harder than foreign balls. Ball
removal procedures differ depending upon the manufacturer of the mouse.
Foreign balls can be replaced using the pop-off method. Domestic balls are
replaced 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 can be used
immediately. It is recommended that each replacer have a pair of spare balls
for maintaining optimum customer satisfaction, and that any customer missing
his balls should suspect local personnel of removing these necessary items.

To re-order, specify one of the following:
P/N 33F8462 - Domestic Mouse Balls
P/N 33F8461 - Foreign Mouse