Cisco Systems Cisco 7513, Cisco 7513-MX, CISCO7576

Cisco 7513, Cisco7513-MX, and Cisco 7576 Card Cage and Backplane Assembly Replacement Instructions 15

Removing the Old Card Cage and Backplane Assembly

To remove the card cage and backplane assembly, follow these steps:

Step 1 Turn the power switch on each power supply to the off position (O).

Step 2 Disconnect the power supplies.

•For DC-input power supplies, refer to the conﬁguration note 1200-Watt DC-Input

Power Supply ReplacementInstructions (Publication Number 78-1899-xx) that

shipped with your Cisco 7513, Cisco 7513-MX, or Cisco 7576 chassis equipped with

DC-input power supplies.

•For AC-input power supplies, refer to the conﬁguration note1200-Watt AC-Input

Power Supply ReplacementInstructions (Publication Number 78-1900-xx) that

shipped with your Cisco 7513, Cisco 7513-MX, or Cisco 7576 chassis equipped with

AC-input power supplies.

Step 3 Usingthe directions in the appropriate conﬁguration note, remove each power supply and

set it aside.

Step 4 Removeall processor modules from the chassis and carefully store them in antistatic bags

or on an antistatic mat. (See the “Removing and Replacing Processor Modules” section

on page 9.)

Caution Toprevent damage to the processor modules, do not stack them on top of each other. Use

the board rack that shipped with your Cisco router. (See Figure6.)

Caution Unless the chassis is mounted in a rack or is otherwise anchored, the chassis might move

toward you when you pull out the card cage and backplane assembly. To prevent injury, have a

second person hold the chassis in place while you pull the card cage and backplane assembly from

the chassis in the following step.

Step 5 With the processor modules and power supplies removed, loosen the four large captive

screws located to the left and the right of the card cage opening. (See Figure 11.)