Remove A Fan Module From An Ex4100 Switch - Juniper EX4100 Hardware Manual

Remove a Fan Module from an EX4100 Switch

Ensure that you have the following parts and tools available:
• Phillips (+) screwdriver, number 2
• An antistatic bag or an antistatic mat
• A replacement fan module
Each fan module in an EX4100 switch is a hot-removable and hot-insertable field-replaceable unit (FRU)
installed in the rear panel of the switch. You can remove and replace the switch without powering it off
or disrupting switch functions.
NOTE: If you remove both fan modules, you must replace at least one fan module within 30
seconds for the switch to operate without disrupting its functions.
1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
2. Hand loosen the captive screws on the front faceplate of the fan module. If you are unable to hand
loosen the captive screws, use the screwdriver.
WARNING: To prevent injury, avoid touching the fan with your hands or any tools as
you slide the fan module out of the chassis. The fan might still be running.
3. Grasp the handle on the fan module and pull it firmly to slide the fan module out of the chassis.
4. Place the fan module in the antistatic bag or on the antistatic mat on a flat, stable surface.
5. Install the replacement fan.
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