Removing A Qfx10008 Fan Tray; Figure 91: Esd Point On Qfx10008 Chassis Rear - Juniper QFX10008 Hardware Manual

Removing a QFX10008 Fan Tray

Copyright © 2019, Juniper Networks, Inc.
The QFX10008 chassis has two independent, field-replaceable fan trays. Each fan tray
is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and
replace the fan tray while the switch is running without turning off power to the switch
or disrupting switching functions.
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 QFX10008 chassis:
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.
To remove a QFX10000 fan tray (see
Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and
1.
connect the strap to the ESD point on the rear left side of the chassis. See
Figure 91 on page 181.

Figure 91: ESD Point on QFX10008 Chassis Rear

Loosen the four captive screws either by unscrewing with your thumb and forefinger
2.
or with a Phillips screwdriver.
293.
Figure 92 on page 182
Chapter 4: Maintaining Components
"Prevention of Electrostatic
for the QFX10008 chassis:
181