Chapter 5: Subsystem Maintenance and Upgrading
5.5.2 Replacing the PSU Module
WARNING!
Before you insert a new PSU, be sure that it has the same warning label on its extraction handle as that shown on the lever of a remaining PSU.
To replace a PSU, please follow these steps:
Step 1. Power off the PSU. The power switch is located on each PSU’s rear- facing panel. (See Figure
Step 2. Disconnect the power cord that connects the PSU to the main power source.
Step 3. Remove the retention screw that secures the rejection handle to the chassis. (See Figure