D20 Cooling Blowers Cable
This procedure must be performed with the power turned off.
Cooling Blower Cable Removal
To remove the cooling blower cable do the following:
1. Open the rack front door.
2. Shut down the system as described in “Stopping the System” on page 55.
3. Put the Model D20 subsystem into the service position.
4. Disconnect the power source from the system.
Note: This system may be equipped with a second power supply. Before
continuing with this procedure, ensure that the power source to the system
has been completely disconnected.
5. Remove the four cooling blowers as described in “Hot-Swap Blower Removal” on
page 134.
6. Open the service access cover as described in “Opening the Service Access
Cover” on page 127.
7. Remove the power supplies and if applicable the power supply filler.
8. If necessary, remove the power supply bulkhead as described in “Power Supply
Bulkhead Removal” on page 172.
9. Disconnect the fan cable from the I/O board.
10. Unclip the three cable ties from the chassis and the three cable ties from the fan
connector-support bracket.
11. Remove the fan docking connectors from the chassis.
To remove each fan docking connector from the chassis, do the following:
a. Depress the connector release tab next to the fan docking connector. The
connector release tab has a small tab retaining clip that locks the fan docking
connector into the fan connector support bracket. Depress the connector
release tab far enough so that the tab retaining clip clears the bottom of the fan
connector-support bracket.
b. With the connector release tab still depressed, slide the fan docking connector
toward the depressed tab.
c. Align the fan docking connector’s four retaining ears with the four small slots
located on the fan connector-support bracket.
d. Push down on the fan docking connector to free it from the fan
connector-support bracket.
12. Remove the cable from the subsystem.
Chapter 8. Removal and Replacement Procedures 137
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