Figure 53: Removing An Ac Power Supply From An Ex4500 Switch - Juniper EX4500 Hardware Manual

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To remove AC power from the old power supply:
3.
a. Identify the AC power source outlet that is powering the old power supply.
b. If the AC power source outlet has an on/off switch, set it to the OFF (0) position.
c. Gently pull the male end of the power cord for the old power supply out of the AC
power source outlet.
To remove the power supply cord from the old power supply:
4.
a. On the power supply, turn the adjustment nut of the power cord retainer clockwise
until you can see the power cord.
b. Pull the power cord out of the slot in the adjustment nut.
c. Unplug the power cord from the AC appliance inlet on the power supply. Save the
cord.
d. Remove the power cord retainer clip by pushing it to one side, squeezing both sides
of the clip, and pulling it completely out of the power supply. Save the clip.
To remove the old power supply from the switch (see
5.
a. Unseat the power supply by pressing the orange or green ejector lever next to the
AC appliance inlet.
b. Grasp the power supply handle and pull firmly, keeping one hand under the power
supply to support it as you slide it out of the chassis.
CAUTION:
while the switch is operational. Either replace the power supply
promptly or install a cover panel over the empty slot.
c. Place the old power supply in an antistatic bag or on an antistatic mat.

Figure 53: Removing an AC Power Supply from an EX4500 Switch

Ejector
lever
To install the replacement power supply in the switch (see
6.
a. If you have not already done so, attach the ESD grounding strap to your bare wrist,
and connect the strap to the ESD point on the lower right front of the chassis—or
hold the component in its antistatic bag in one hand and touch the exposed, bare
metal of the switch with the other hand.
Do not leave the power supply slot empty for a long time
Chapter 18: Replacing Power Supply
Figure 53 on page 181):
Figure 54 on page 182):
181