Nortel Networks 400 4.0 Installing the main unit top cover, To install the main unit top cover

246Chapter 20 Preparing hardware for maintenance or upgrades

Figure 115 Remove the BCM400 top cover

Main unit		2
		Lift cover at rear
top cover
1	Remove the top
	cover screws
	3	Slide cover open

Installing the main unit top cover

Use this procedure to install the top of the main unit cover. This procedure assumes that maintenance or installation activities are complete and that you are ready to start the BCM system.

Warning: Protect the hardware components against damage from electrostatic discharge. Always wear a grounded wrist strap before you handle components. Always place the components in a static-free container or work area.

To install the main unit top cover

1Disconnect the BCM system from the AC power outlet.

2If required, remove the main unit from the server rack.

3Attach one end of the grounding strap to your wrist and the other end to a grounded metal surface.

4Set the top cover on the main unit.

5Slide the top cover forward until the cover engages with the main unit.

6Press the top cover down until it rests on the chassis. Refer to Figure 116 or Figure 117.

7Install the two top cover screws at the rear of the main unit.

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