4. Make sure that the voltage across the DC power source cable leads is 0 V and that there is no chance
that the cables might become active during the removal process.
5. Remove the clear plastic cover protecting the terminal studs on the faceplate from the power supply
in slot 0.
6. Remove the nut and washer from each of the terminal studs. (Use a 7/16-in. [11-mm] nut driver or
socket wrench.)
7. Loosen the captive screw on the cable restraint on the lower edge of the power supply faceplate.
8. Remove the cable lugs from the terminal studs.
9. Carefully move the power cables out of the way.
10. While grasping the handle on the power supply faceplate with one hand, use your other hand to pull
the spring-loaded locking pin in the release lever away from the chassis and turn the release lever
counterclockwise until it stops.
11. Let go of the locking pin in the release lever. Ensure that the pin is seated inside the corresponding
hole in the chassis.
12. Pull the power supply straight out of the chassis (see Figure 216 on page 548).
WARNING: Do not touch the power connector on the top of the power supply.
It can contain dangerous voltages.
13. Repeat steps 1-12 for power supplies in slot 1, 2, and 3, where present.
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