User Guide Desktop PC 8288, 8297, 8326, 8329, 8342, 8380
3. Place your hand over the retainer ring and ball2, and then turn the mouse
over, top side up, so that the retainer ring and ball fall out into your hand.
4. Wash the ball in warm, soapy water then dry it with a clean cloth. Blow air
carefully into the ball cage4to dislodge dust and lint.
5. Look for a build up of dirt on the plastic rollers3inside the ball cage. This
build up usually appears as a stripe running across the middle of the rollers.
6. If the rollers are dirty, clean them by using a cotton swab soaked in isopropyl
(rubbing) alcohol. Turn the rollers with your finger and continue swabbing
them until all the dirt is removed. Be sure the rollers are still centered in their
channels after you clean them.
7. Remove any fibers from the swab that might be remaining on the rollers.
8. Replace the ball and the retainer ring.
9. Turn your computer back on.
34 User Guide