Removing the Routing Engines

The router can have a Routing Engine in each of the slots labeled RE 0 and RE 1 at the rear of the chassis, as shown in Figure 3. Each Routing Engine weighs approximately 1.5 lb (0.7 kg).

To remove a Routing Engine, follow this procedure (see Figure 36):

1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. Make sure the router is attached to a proper earth ground. For more information about ESD, see Preventing Electrostatic Discharge Damage.
3. Using your thumbs, push and hold the red tab on each extractor clip toward the outer edge of the unit. Push the ends of the extractor clips outward to unseat the Routing Engine from the chassis.
4. Grasp the extractor clips and slide the unit about halfway out of the chassis.

   Slide the Routing Engine straight out of the chassis. Damage can result if it gets lodged because of uneven movement.

5. Place one hand under the Routing Engine to support it, slide it completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.

If a second Routing Engine is installed, repeat the procedure to remove it.