Maintain The Qfx5230-64Cd Cooling System; How To Remove A Fan Module From A Qfx5230-64Cd Switch - Juniper QFX5230-64CD Hardware Manual

Maintain the QFX5230-64CD Cooling System

IN THIS SECTION

How to Remove a Fan Module from a QFX5230-64CD Switch | 95

How to Install a Fan Module in a QFX5230-64CD Switch | 96
The fan modules in the QFX5230-64CD switch are hot-removable and hot-insertable field-replaceable
units (FRUs). You can remove and replace one of them without powering off the switch or disrupting
switching function.
CAUTION: To ensure proper airflow, keep a failed fan module in place until you have a
replacement fan module at hand. Do not run the device with an open fan slot for an
extended amount of time.
How to Remove a Fan Module from a QFX5230-64CD Switch
Before you remove a fan module from a QFX5230-64CD switch, ensure that you have taken the
necessary precautions to prevent electrostatic discharge (ESD) damage (see
Discharge Damage).
Ensure that you have the following parts and tools available to remove a fan module from a
QFX5230-64CD switch:
• ESD grounding strap
• Antistatic bag or an antistatic mat
To remove a fan module from a QFX5230-64CD switch:
1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
2. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
3. Loosen the locking screw (3 or 4 turns) using a Phillips number 2 screwdriver.
4. Grasp the handle on the fan module and squeeze the outside of the handle to release the module.
Prevention of Electrostatic
95