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OceanStor 9000 V300R006C20 Hardware Installation Guide 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Installing Ball Bearing Guide Rails

Installing Ball Bearing Guide Rails

After determining where to install storage devices in the cabinet, install ball guide rails for supporting C72 node. If you do not need to install C72 nodes, skip this step.

Prerequisites

Ensure that the following tools and materials are ready:
  • Phillips screwdrivers (M3 to M6)
  • Markers
  • M6 screws
  • M4 screws
  • M3 screws
  • Installation templates
  • Ball bearing guide rail components (including ball bearing guide rails)

Context

  • A C72 node must be installed on ball bearing guide rails. Stacking the enclosure will cause damage.
  • Ball bearing guide rails must be installed horizontally.
NOTE:
To ensure that a guide rail can be installed horizontally, it is recommended that you mark both front and rear columns where the ball bearing guide rail is to be secured before installation.
  • You are advised to install storage devices in the cabinet from bottom up.
  • Configure a pair of ball bearing guide rails for each C72 node.
  • The ball bearing guide rails can be extended from 600 mm (23.62 in.) to 915 mm (36.02 in.)

Procedure

  1. Pull out the inner rail of the ball bearing guide rails, as shown in Figure 8-17.
    1. Pull out the inner rail until the buckle is exposed.
    2. Press the buckle and pull out the inner rail from the ball bearing guide rail, as shown in step 2 in Figure 8-17.

    Put the removed inner rail into an ESD bag. The inner rail will be used in installing a C72 node.

    Figure 8-17  Pulling out an inner rail

    NOTE:

    For the right ball bearing guide rail, press the buckle downward. For the left ball bearing guide rail, press the buckle upward.

  2. Pull out the rail bracket of a ball bearing guide rail, as shown in Figure 8-18.
    1. Loosen the four M3 screws on the ball bearing guide rails shown in step 1 of Figure 8-18.
    2. Remove the rail bracket, as shown in step 2 of Figure 8-18.

    Put the removed rail bracket into an ESD bag. The rail bracket will be used in installing a C72.

    Figure 8-18  Removing a rail bracket

  3. Install the left inner rail (identified by L) of the ball bearing guide rails.
    1. Align the ball bearing guide rails with the mounting bar of the cabinet in advance. If the distance is not longer than 10 mm (0.39 inch) between the front and rear brackets of the ball bearing guide rails and the front and rear ends of the mounting bar, loosen the two M4 screws on the external rail of the ball bearing guide rail (pull out the middle guide rail to expose the two M4 screws on the ball bearing guide rail.), as shown in Figure 8-19. If the distance is longer than 10 mm (0.39 inch), remove the two M4 screws and align the distance.

      Figure 8-19  Loosening screws

    2. Align the bottom edge of the ball bearing guide rail with the U scales on the front mounting bar, and insert the front positioning pins of the ball bearing guide rail into the square holes. Use M6 screws to fix the front bracket of the ball bearing guide rail, as shown in Figure 8-20.
    3. Stretch the rear bracket of the ball bearing guide rail and insert the rear positioning pins into the square holes of the rear mounting bar.
    4. Use M6 screws to secure the guide rail in place, as shown in Figure 8-20.

      Figure 8-20  Installing a ball bearing guide rail

    5. Fasten the two M4 screws on the ball bearing guide rail, as shown in Figure 8-21.

      Figure 8-21  Fastening screws

  4. Install the right inner rail (identified by R) of the ball bearing guide rails.

    The installation method of the right inner rail is similar to 3.

  5. Install the ball bearing guide rail bracket, as shown in Figure 8-22.
    1. Install the rail bracket and slide the bracket to the ball bearing guide rail, as shown in step 1 in Figure 8-22.
    2. Fasten the four M3 screws on the ball bearing guide rail, as shown in step 2 in Figure 8-22.

    NOTE:

    Fasten two screws at the top and bottom of the bracket of the ball bearing guide rail, respectively.

    Figure 8-22  Installing a ball bearing guide rail bracket

  6. After the installation, use the installation templates to check the distance between the left and right guide rails, and ensure that the two templates can snap into the ball bearing guide rails, as shown in Figure 8-23.

    NOTE:

    If the installation templates cannot snap into the guide rails, loosen the M6 screws no the guide rails and mounting bars, and slightly adjust the distance between the left and right guide rails. After the installation templates successfully snap into the guide rails, fix the M6 screws.

    Figure 8-23  Inserting installation templates

  7. Check the installation of the ball bearing guide rails.
    1. Check whether the ball of the ball bearing guide rail is placed at the most front end of the middle rail. If not, slide it to the most front end of the middle rail, as shown in Figure 8-24.

      Figure 8-24  Sliding the ball to the most front end of the middle rail

    2. Check whether the middle rail of the ball bearing guide rail is completed inserted, that is, the edges of the middle rail and external rail are at the same vertical plane, as shown in Figure 8-25.

      NOTE:

      If the middle guide rail is not in place, release the inner rail latch to push the rail into the guide rail.

      Figure 8-25  Sliding the middle rail to align it with the edges of the external rail

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Updated: 2019-03-26

Document ID: EDOC1000185366

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