Remove an Energy Storage Module

1. Place the system in active-standby mode as described in Place the System in Active-Standby Power Mode.
2. Ensure that the blue Ready to Remove LED on the ESM module is illuminated.

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   Caution - If the blue LED is not illuminated, a charge is still present. Do not remove the ESM until the blue Ready to Remove LED is illuminated. It might take up to 10 minutes for the ESM to fully discharge, and for the blue LED to illuminate.

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3. Slide the chassis forward so that you can access the fan module door.

   Refer to Extend the Chassis to the Maintenance Position.

4. Using a No. 2 Phillips screwdriver, loosen the captive screw that is located on the top of the ESM cage above the ESM you want to replace as shown in panel 1 of Removing an ESM.
5. Open the fan module door as shown in panel 2 of Removing an ESM.
6. Locate the green eject lever for the ESM you want to replace and push the lever toward the front of the system as shown in panel 3 of Removing an ESM to eject the ESM from the energy storage cage.
7. Remove the ESM from the energy storage cage as shown in panel 4 of Removing an ESM.

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   Caution - The ESM might be hot. Use caution when handling it.

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   Caution - If AC power fails while an ESM is removed from the system, data on the FMods that are backed up by the removed ESM could be lost. Do not leave an ESM bay empty any longer than necessary to complete the replacement procedure.

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   Figure 27 Removing an ESM