IBM 9080-M9S Manual page 296

Figure 249. Removing the UPIC cable from the system control unit
5. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from
damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is
used for static control. It does not increase or decrease your risk of receiving electric shock
when using or working on electrical equipment.
• If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for a
minimum of 5 seconds. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface for
at least 5 seconds before you continue with the service process.
6. Complete the following steps to place the system node in the service position.
Do not pull out or install any drawer or feature if the rack stabilizer brackets are not attached to the
rack. Do not pull out more than one drawer at a time. The rack might become unstable if you pull out
more than one drawer at a time.
290 Power Systems: Removing and replacing parts in the 9080-M9S system