•
Ensure that you understand how to prevent electrostatic discharge (ESD) damage.
See “Prevention of Electrostatic Discharge Damage” on page 192.
Ensure that you have the following parts and tools available:
•
ESD grounding strap
•
Antistatic bag or antistatic mat
•
A Phillips (+) screwdriver, number 2
•
Replacement fan module for the fan module slot
To remove a fan module from a QFX3100 Director device (see Figure 90 on page 313):
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to a site ESD
point.
2. Place the antistatic bag or the antistatic mat on a flat, stable surface.
3. Unscrew both captive screws counterclockwise using your fingers. If you are unable
to easily unscrew the captive screws with your fingers, use the screwdriver.
WARNING: To avoid injury, do not touch the fan with your hands or any
tools as you slide the fan module out of the chassis—the fan might still
be running.
4. When the fan stops spinning, grasp the fan module tightly to avoid dropping it and
remove the fan module from the fan module slot.
5. Place the fan module in the antistatic bag or on the antistatic mat.
Figure 90: Removing a Fan Module from a QFX3100 Director Device
g005119
Loosen captive screws
Related
Documentation
Installing a Fan Module in a QFX3100 Director Device on page 314•
• Fan Modules in a QFX3100 Director Device on page 29
313Copyright © 2012, Juniper Networks, Inc.
Chapter 25: Replacing QFX3100 Components
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