Removing the Front Fan Trays

The three front fan trays are located in a column at the front left of the chassis, as shown in Figure 1. Each fan tray houses three fans and weighs approximately 5 lb (2 kg).

To remove the fan trays, follow this procedure (see Figure 33):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. Verify that the router is attached to a proper earth ground. For more information about ESD, see Preventing Electrostatic Discharge Damage.
2. Loosen the thumbscrew near the middle of the fan tray faceplate, using a Phillips screwdriver if necessary.
3. Grasp the handle on the faceplate and slide the tray about halfway out of the chassis.
4. Place one hand under the fan tray to support it and slide it completely out of the chassis.
5. Repeat the procedure to remove the other two front fan trays.

Figure 33: Removing a Front Fan Tray