IBM 6643 User Manual page 44

1. Turn off the computer.
2. Disconnect the mouse cable from the computer.
3. Turn the mouse upside down. Unlock the retainer on the bottom of the
mouse by rotating it in the direction of the arrow.
Note: Some mice have lock and unlock symbols to indicate how far you
need to rotate the retainer.
4. Place your hand over the retainer and turn the mouse right-side up. The
retainer and ball will drop out into your hand.
5. Using a damp cloth, wipe the outside of the mouse and the retainer. Be
sure to wipe the rollers inside the mouse.
6. Insert the ball and retainer. Lock the retainer by rotating it opposite the
direction of the arrow.
7. Reconnect the mouse cable to the computer.
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User Guide