Removing the PCGs

The router has two PCGs installed in the slots labeled PCG 0 and PCG 1 at the rear of the chassis, as shown in Figure 3. Each PCG weighs approximately 1 lb (0.5 kg).

To remove the PCGs, follow this procedure (see Figure 35):

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. Loosen the thumbscrew at the lower right corner of the PCG faceplate, using a Phillips screwdriver if necessary.
4. Grasp the thumbscrew and slide the PCG about halfway out of the chassis.

   Be careful to slide the PCG straight out of the chassis to avoid bending any of the pins on the underside of the board.

5. Place one hand under the PCG to support it, slide it completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.
6. Repeat the procedure to remove the second PCG.