Cisco Systems 7500 Series manual Removing and Replacing the Cisco 7505 Backplane Cover

Chapter 5 Maintaining Your Cisco 7505 Router

Maintenance Procedures for the Cisco 7505

Removing and Replacing the Cisco 7505 Backplane Cover

The backplane cover provides EMI and ground protection for the backplane, the arbiter, and the chassis interface (CI). To access the CI, you must remove the backplane cover using number 1 and number 2 Phillips screwdrivers. Following is the procedure for removing and replacing the backplane cover. This procedure assumes that you have already removed the chassis cover panel, the fan tray, the power harness cover, and the power harness. If not, see the appropriate sections in this publication to remove these items.

Use the following procedure to remove the backplane cover:

Step 1 Attach an ESD-preventive strap between you and an unpainted chassis surface.

Step 2 With the fan tray removed, remove the eight 20-mm M3 standoff screws that secure the backplane cover to the arbiter and CI standoffs. These screws are located on the face of the backplane cover. (See Figure 5-5.)

Step 3 Remove the fifteen 10-mm M3 Phillips that secure the backplane cover to the backplane. These screws are located around the flange of the backplane cover (two on each side, six along the top, and five along the bottom). (See Figure 5-5.)

Caution To prevent loosening the backplane from the chassis, remove only those screws that secure the backplane cover to the backplane. Do not remove any adjacent screws.

Step 4 With all screws removed, carefully guide the backplane cover out and away from the backplane, arbiter, and CI. (See Figure 5-5.)

Cisco 7500 Series Installation and Configuration Guide

OL-5008-03 B0 5-9