Remove an AC Power Supply

The AC power supplies are located at the bottom rear of the chassis (see Figure 2). Each AC power supply weighs approximately 20 lb (9 kg).

Do not leave a power supply slot empty for more than a short time while the router is operational. The power supply must remain in the chassis for proper airflow.

 

To remove an AC power supply, follow this procedure (see Figure 53):

1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
2. Press the power switch on the power supply faceplate to the OFF (O) position. 
   
   

   If you are not removing the power supply, but simply powering it off, wait at least 60 seconds before turning it back on. If you need to power it off again, wait for at least 60 seconds after powering it on.

   
   
3. Unplug the power cord from the appliance inlet on the faceplate.
4. Loosen the thumbscrew at each upper corner of the power supply faceplate, using a Phillips screwdriver if necessary.
5. Lift and hold up the safety interlock lever, which is directly below the appliance inlet.
6. While holding the safety interlock lever up, turn the extractor/inserter counterclockwise until the power supply disengages from the backplane.
7. Grasp the handle on the power supply faceplate and pull firmly to slide the unit about halfway out of the chassis.
8. Place one hand under the power supply to support it, then slide it completely out of the chassis.

Figure 53: Remove an AC Power Supply