Juniper QFabric QFX3000-G Hardware Documentation page 717

Copyright © 2018, Juniper Networks, Inc.
Place the antistatic bag or the antistatic mat on a flat, stable surface.
1.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
2.
point on the chassis.
NOTE: If only one power supply is installed in your QFX5100 device, you
need to power off the switch before removing the power supply. See
Powering Off a QFX5100 Device.
Disconnect power to the switch:
3.
AC power supply—If the AC power source outlet has a power switch, set it to the
OFF (O) position. If the AC power source outlet does not have a power switch, gently
pull out the male end of the power cord connected to the power source outlet.
DC power supply—Switch the circuit breaker on the panel board that services the
DC circuit to the OFF position.
Remove the power source cable from the power supply faceplate:
4.
AC power supply—Remove the power cord from the power supply faceplate by
detaching the power cord retainer and gently pulling out the female end of the
power cord connected to the power supply faceplate.
DC power supply—Remove the screws securing the ring lugs attached to the power
source cables to the power supply using the screwdriver, and remove the power
source cables from the power supply. Replace the screws on the terminals and
tighten them.
Slide the locking lever toward the handle until it stops.
5.
Grasp the power supply handle and pull firmly to slide the power supply halfway out
6.
of the chassis.
Place one hand under the power supply to support it and slide it completely out of
7.
the chassis. Take care not to touch power supply components, pins, leads, or solder
connections.
Place the power supply in the antistatic bag or on the antistatic mat placed on a flat,
8.
stable surface.
Chapter 44: Replacing QFX5100 Components
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