Silicon Graphics 1400 Server Family Maintenance And Upgrade Manual page 154

Appendix C: Chassis Warnings and Safety
140
5. Provide some electrostatic discharge (ESD) protection by wearing an antistatic wrist
strap attached to chassis ground of the system—any unpainted metal surface—
when handling components.
6. Do not operate the system with the chassis covers removed.
After you have completed the six safety steps above, you can remove the system covers.
To do this:
1. Unlock and remove the padlock from the back of the system if a padlock has been
installed.
2. Remove and save all screws from the covers.
3. Remove the covers.
Caution: A microprocessor or heat sink may be hot if the system has been running.
Also, there may be sharp pins and edges on some board and chassis parts. Contact
should be made with care. Consider wearing protective gloves.
For proper cooling and airflow, always reinstall the chassis covers before turning on the
system. Operating the system without the covers in place can damage system parts. To
install the covers:
1. Check first to make sure you have not left loose tools or parts inside the system.
2. Check that cables, add-in boards, and other components are properly installed.
3. Attach the covers to the chassis with the screws removed earlier, and tighten them
firmly.
4. Insert and lock the padlock to the system to prevent unauthorized access inside the
system.
5. Connect all external cables and the AC power cord(s) to the system.
Warning:
There is a danger of explosion if the battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the equipment
manufacturer. Discard used batteries according to manufacturer's instructions.