Juniper QFX10016 Hardware Manual page 205

Copyright © 2017, Juniper Networks, Inc.
CAUTION: Do not remove the fan tray unless you have a replacement fan
tray available.
Each fan tray is installed vertically on the rear, or FRU-side, of the chassis.
Before you remove a fan tray:
Ensure you understand how to prevent ESD damage. See
Discharge Damage" on page
Ensure that you have the following parts and tools available to remove a fan tray from
a QFX10000:
Electrostatic discharge (ESD) grounding strap
Replacement fan tray
A Phillips (+) screwdriver, number 1 or 2 (optional), for the captive screws
CAUTION: The fan tray can be removed and replaced while the switch is
operating. However, the fan tray must be replaced within 3 minutes of
removing the fan tray to prevent overheating of the chassis.
Chapter 16: Replacing Cooling System Components
327.
"Prevention of Electrostatic
181