Removing And Replacing The Cisco 7505 Backplane Cover - Cisco 7500 Series Configuration Manual

Chapter 5 Maintaining Your Cisco 7505 Router

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:
Attach an ESD-preventive strap between you and an unpainted chassis surface.
Step 1
With the fan tray removed, remove the eight 20-mm M3 standoff screws that secure the backplane cover
Step 2
to the arbiter and CI standoffs. These screws are located on the face of the backplane cover. (See
Figure
Remove the fifteen 10-mm M3 Phillips that secure the backplane cover to the backplane. These screws
Step 3
are located around the flange of the backplane cover (two on each side, six along the top, and five along
the bottom). (See
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
OL-5008-03 B0
5-5.)
Figure 5-5.)
Figure 5-5.)
Maintenance Procedures for the Cisco 7505
Cisco 7500 Series Installation and Configuration Guide
5-9