Installing a Fan Module in a QFX3100 Director Device
QFX3100 Director devices have three field-replaceable unit (FRU) fan modules on the
back panel. The fans are hot-removable and hot-insertable FRUs: You can remove and
replace them without powering off the QFX3100 Director device or disrupting QFX3100
Director device functions.
Before you begin installing a fan module in a QFX3100 Director device:
•
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
To install a fan module in a QFX3100 Director device (see Figure 91 on page 314):
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to a site ESD
point.
2. Remove the fan module from its bag.
3. Ensure that the fan module is properly aligned with the fan module slot.
WARNING: To avoid injury, do not touch the fan with your hands or any
tools as you slide the fan module into the chassis—the fan may start
running.
4. Insert the fan module into the fan module slot, and gently push the module all the
way into the slot until the module is seated flush in the fan module slot.
5. Tighten both screws on the fan module using your fingers.
Figure 91: Installing a Fan Module in a QFX3100 Director Device
g005120
Tighten captive screws
Copyright © 2012, Juniper Networks, Inc.314
QFX3000 Hardware Documentation
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