Lenovo 8104 User Manual page 46

3. Place your hand over the retainer ring and ball 2 , and then turn the mouse
4. Wash the ball in warm, soapy water then dry it with a clean cloth. Blow air
5. Look for a build up of dirt on the plastic rollers 3 inside the ball cage. This
6. If the rollers are dirty, clean them by using a cotton swab soaked in isopropyl
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.
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User Guide
over, top side up, so that the retainer ring and ball fall out into your hand.
carefully into the ball cage 4 to dislodge dust and lint.
build up usually appears as a stripe running across the middle of the rollers.
(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.