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Chapter 8 Install or Replace a Cooling Fan 185
Installation and Maintenance Guide
5 Restore the Business Communications Manager system to operation. For details, refer to
“Restart the System after Maintenance” on page 147.
The Business Communications Manager system starts up when you connect the AC power
cord. The start-up process takes several minutes to complete.
6 Test the direction of the fan exhaust air flow to determine if the fan is correctly installed.
a Hold a piece of paper or your hand close to the fan exhaust. A correctly installed fan blows
air away from the platform base chassis. If you are testing two fans, cover one fan at a time
with your hand.
b If the fan exhaust air flow is incorrect, remove the cooling fan (See “Remove a BCM400
cooling fan” on page 180) and re-install the fan in the correct position (this procedure).
7 This procedure is complete.
Remove a BCM200 cooling fan
Use this procedure to remove the cooling fan in a BCM200 platform configuration.
1 If you still have access to the Unified Manager, shut down the system using the Shutdown
command. For details refer to “Shut down the system software” on page 145. Otherwise, skip
to step 2.
2 Set up the server for maintenance, as described in “Shut down the system hardware” on page
146.
3 Disconnect the Business Communications Manager system from the AC power outlet.
4 Attach one end of the grounding strap to your wrist and the other end to a grounded metal
surface.
5 Remove the top cover from the platform base chassis (see “Remove the platform base chassis
top cover” on page 161).
6 Disconnect the I/O card fan cable connection (see Figure 112).
Warning: Protect the hardware components against damage from electro-static
discharge. Always wear a ground wriststrap before you handle components. Always place
the components in static-free container.