Installation Checkout - Cisco 7000 Hardware Installation And Maintenance

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Installation Checkout

Perform the following steps to verify that the new blower is installed correctly.
Step 1
Step 2
Step 3
This completes the blower replacement.
Use the Allen wrench to turn each of the captive installation screws clockwise about two
full turns to ensure that they are aligned in the backplane holes; you should not feel much
resistance. If a screw is hard to turn, do not force it. Wiggle the chassis around, ensure that
the screw is straight, and try tightening the screw again. If after several attempts the screw
does not tighten easily, refer to the following section "Installation Checkout," for further
instructions.
Tighten each of the three captive installation screws by turning them clockwise. The far left
screw is slightly obscured by the left lip of the chassis and the left blower air duct, but is
accessible by inserting a long Allen wrench into the access hole in the lower lip of the
chassis. Insert the wrench straight into the hole at a 90-degree angle to the backplane. If
necessary, use a flashlight to locate and guide the wrench to the screw.
Locate the blower power connection port (see Figure 5-33), which is under the white power
bus bar on the backplane. Both the port and the connector are keyed so the flat edge of the
connector is at the bottom.
Hold the blower 24 VDC power connector with the flat edge down and the red or purple
(+24V) wire to the left, and plug the connector into the backplane connector. When the
connector is fully inserted, two plastic tabs snap outward to secure the connector in place.
Replace the top and bottom front chassis panels (refer to the section "Removing and
Replacing the Front Chassis Panels" earlier in this chapter) and proceed to the next section
to verify the installation.
Turn ON all AC-input (or DC-input) power supplies. The AC power LED on all AC-input
power supplies (or the input power LED on the DC-input power supplies) should go on. If
any do not, or if the DC fail LED is on, on the AC-input power supply (or the out fail LED
on the DC-input power supply), the power supply has failed. Refer to the troubleshooting
procedures in the chapter "Troubleshooting the Installation."
Listen for the blower; you should immediately hear it operating. If you do not hear it, turn
OFF the system power and do the following:
•
Remove the top and bottom front chassis panels. (Refer to the section "Removing and
Replacing the Front Chassis Panels" earlier in this chapter.)
•
Check the blower power connector and ensure that it is fully seated in the backplane port
by pinching the sides and pushing it firmly into the port.
•
Check the two wires between the blower and the power connector: the red or purple
+24V wire and the black ground wire. Ensure that they have not pulled out of the power
connector by pinching each wire near the back connector and pushing it firmly into the
connector.
•
Replace the front chassis panels, turn the power supplies back ON, and listen for the
blower.
If after several attempts the blower does not operate, or if you experience trouble with the
installation (for instance, if the captive installation screws do not align with the backplane
holes), contact a customer service representative for assistance.
Replacing Internal Components
Maintenance 5-245