> This is am actual alert to IBM Field Engineers that went out to
> all IBM Branch Offices.  The person who wrote it was very serious.
> The rest of us may find it rather funny.
> 
> 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 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 may 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 Balls
