IBM Power System 8248-L4T Manual page 18

1. Identify the system that you will be working on and turn on the system locate (blue) indicator. For
instructions, see Enabling enclosure indicators and Control panel LEDs.
2. Use the service indicator light-emitting diodes (LEDs) to help identify the part. For instructions, see
Identifying a part.
3. Complete the prerequisite tasks. For instructions, see "Before you begin" on page 18.
4. Stop the system. For instructions, see "Stopping a system or logical partition" on page 28.
5. Disconnect the power source from the system by unplugging the system. For instructions, see
Disconnecting the power cords.
Note: This system might be equipped with a second power supply. Before continuing with this
procedure, ensure that the power source to the system has been completely disconnected.
(L003)
or
6. Remove the front cover. For instructions, see Removing the front cover from the 8248-L4T, 8408-E8D,
or 9109-RMD.
7. Place the system into the service position. For instructions, see Placing a rack-mounted model into
the service position.
8. Attach the wrist strap.
6
Power Systems: Voltage regulators for the 8248-L4T, 8408-E8D, or 9109-RMD