Remove the Cable Management Arm

Follow this procedure to remove the optional 19-inch sliding rail kit with the CMA. The CMA applies only to the 4-Post, 19-Inch rack with sliding rails for servers.

Before you begin this procedure, refer to Installing the 19-Inch Sliding Rail Kit With the CMA in Netra SPARC S7-2 Server Installation Guide and identify CMA connectors A, B, C, and D. You must disconnect the CMA connectors in reverse order, that is, disconnect connector D first, then C, then B, and finally A.

Throughout this procedure, after you disconnect any of the CMA's four connectors, do not allow the CMA to hang on its own weight.

1. To prevent the rack from tipping forward when the server is extended, extend all rack anti-tilt devices.

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   Caution  -  To reduce the risk of personal injury, stabilize the rack cabinet and extend all anti-tilt devices before extending the server from the rack.

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   For instructions for stabilizing the rack, see Stabilize the Rack in Netra SPARC S7-2 Server Installation Guide.

2. To make it easier to remove the CMA, extend the server approximately 13 cm (5 inches) out of the front of the rack.
3. Remove the cables from the CMA.
   1. Disconnect all cables from the rear of the server.
   2. If applicable, remove any additional Velcro straps that were installed to bundle the cables.
   3. Unwrap the six Velcro straps that are securing the cables.
   4. Open the three cable covers to the fully opened position.
   5. Remove the cables from the CMA and set them aside.
4. Disconnect connector D.
   1. Press the green release tab (callout 1) on the slide-rail latching bracket toward the left and slide the connector D out of the left slide-rail (frames 1 and 2).

      When you slide connector D out of the left slide-rail, the slide-rail latching bracket portion of the connector remains in place. You will disconnect it in the next step.

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      Note -  Once you have disconnected connector D, you must not allow the CMA to hang under its own weight. Throughout the remainder of this procedure, the CMA must be supported until all the remaining connectors are disconnected and the CMA can be placed on a flat surface.

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      No. Description 1 Connector D release tab (green) 2 Slide-rail latching bracket release tab (labeled PUSH)

   2. Use your right hand to support the CMA and use your left thumb to push in (toward the left) on the slide-rail latching bracket release tab labeled PUSH (callout 2), and pull the latching bracket out of the left slide-rail and put it aside (frames 3 and 4).
5. Disconnect connector.
   1. Place your left arm under the CMA to support it.
   2. Use your right thumb to push in (toward the right) on the connector C release tab labeled PUSH (callout 1), and pull connector C out of the right slide-rail (frame 1 and 2).
      

      No. Description 1 Connector C release tab (labeled PUSH)

6. Disconnect connector B.
   1. Place your right arm under the CMA to support it and grasp the rear end of connector B with your right hand.
   2. Use your left thumb to pull the connector B release lever to the left away from the right slide-rail (callout 1) and use your right hand to pull the connector out of the slide-rail (frames 1 and 2).
      

      No. Description 1 Connector B release lever

7. Disconnect connector A.
   1. Place your left arm under the CMA to support it and grasp the rear end of connector A with your left hand.
   2. Use your right thumb to pull the connector A release lever to the right away from the left slide-rail (callout 1), and use your left hand to pull the connector out of the slide-rail (frames 1 and 2).
      

      No. Description 1 Connector A release lever

8. Remove the CMA from the rack and place it on a flat surface.
9. Go to the front of the server and push it back into the rack.