This is an 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