IBM 7383 Installation And Service Manual page 60

4. Remove all long cards from the system board.
5. Disconnect the fan cage power cable from the system board (see "Internal cable
6. Loosen the thumb screw on the fan cage release latch.
7. Rotate the fan cage release latch to the open position. The fan cage will lift up
8. Grasp the fan cage assembly and lift it out of the server.
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System x3500 M4 Type 7383: Installation and Service Guide
routing and connectors" on page 186).
slightly when the release latch is fully open.