Cisco 600W User Manual download pdf (Page 13)

600W AC-Input Power Supply and Fan Tray Replacement Instructions 13

Replacing Components

Removing the Power Harness Cover, Power Harness, and Power Supply

Follow these steps to remove the power harness cover, power harness, and power supply:

Step 1 Follow Steps 1 and 2 in the section “Removing and Replacing the Chassis Cover Panel” on

page 9 to open the chassis.

Note The Cisco 7010 and Cisco 7505 have slightly different power harness covers, but for both

chassis, this cover and power harness must be removed to access the power supply.

Step 2 Use a number 1 Phillips screwdriver to remove the M3 screw that secures the power harness

cover to the backplane. (See Figure 8.)

Figure 8 Removing and Replacing the Power Harness Cover

Step 3 Holding the cover with one hand, tilt the top of the cover back toward you, then pull it up

slightly so that the tab clears the slot in the chassis ﬂoor.

Step 4 When the tab clears the slot, pull the cover straight back off the harness and out of the

chassis.

Step 5 Disconnect the power harness plug from the backplane receptacle by pulling the polarized

plug out of the receptacle; do not pull on the wires. (See Figure 9a.)

Step 6 Use a number 2 Phillips screwdriver to remove the two M4 Phillips panhead screws that

secure the power supply ears (one on each side of the power supply) to the chassis frame.

(See Figure 9a.)

Step 7 Using both hands, grasp both of the power supply handles and pull the power supply about

halfway out of the bay (see Figure 9b), then grab the sides of the supply and pull it out of

the chassis. (See Figure 9c.)

This completes the power supply removal procedure.

Proceed to the next section to install the new power supply and replace the power harness cover.

Power harness

cover

Removing power harness cover

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Cisco 600W User Manual Page 13