Removing a QFX10008 Fan Tray
The QFX10008 chassis has two independent, field-replaceable fan trays. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the switch is running without turning off power to the switch or disrupting switching functions.
Do not remove the fan tray unless you have a replacement fan tray available.
Each fan tray is installed vertically on the rear, or FRU-side, of the chassis.
Before you remove a fan tray:
Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.
Ensure that you have the following parts and tools available to remove a fan tray from a QFX10008 chassis:
Electrostatic discharge (ESD) grounding strap
Replacement fan tray
A Phillips (+) screwdriver, number 1 or 2 (optional), for the captive screws
The fan tray can be removed and replaced while the switch is operating. However, the fan tray must be replaced within 3 minutes of removing the fan tray to prevent overheating of the chassis.
To remove a QFX10000 fan tray (see Figure 2 for the QFX10008 chassis:
- Attach the electrostatic discharge (ESD) grounding strap
to your bare wrist, and connect the strap to the ESD point on the
rear left side of the chassis. See Figure 1.
Figure 1: ESD Point on QFX10008 Chassis Rear 
- Loosen the four captive screws either by unscrewing with your thumb and forefinger or with a Phillips screwdriver.
- Grasp the top and bottom handles and pull the fan tray
out about 3 in. (7.6 cm). See Figure 2.
Figure 2: Removing a Fan Tray from a QFX10008 Chassis 
- Tilt the top of the fan tray forward.
- Using both hands, lift the fan tray out of the slot and
rest it on a flat surface with the handles to the side.
Caution Replace a fan tray within three minutes to avoid chassis overheating.