Remove a Fan Module from an EX4100 Switch
Ensure that you have the following parts and tools available:
• Phillips (+) screwdriver, number 2
• An anstac bag or an anstac mat
• A replacement fan module
Each fan module in an EX4100 switch is a hot-removable and hot-insertable eld-replaceable unit (FRU)
installed in the rear panel of the switch. You can remove and replace the switch without powering it o
or disrupng switch funcons.
NOTE: If you remove both fan modules, you must replace at least one fan module within 30
seconds for the switch to operate without disrupng its funcons.
1. Place the anstac bag or the anstac mat on a at, stable surface.
2. Hand loosen the capve screws on the front faceplate of the fan module. If you are unable to hand
loosen the capve 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 sll be running.
3. Grasp the handle on the fan module and pull it rmly to slide the fan module out of the chassis.
4. Place the fan module in the anstac bag or on the anstac mat on a at, stable surface.
5. Install the replacement fan.
182