IBM pseries 630 6C4 Installation Manual page 141

5. Grasp the ends of both power supply handles, and slide the retractable
spring-activated portion of each handle toward its hinged base. This action releases
the locking tab located on the bottom side of each release handle. See the following
illustration.
1 Power Supply
2 Locking Tab Receiver Hole
3 Retractable Spring-Activated Portion of the Handle
Chapter 4. Installing Options
125