Installing the backing plate

To install the backing plate, do the following:

Note:

The following procedure requires the use of an overhead lifting device. Refer to Lifting and Handling for lifting and handling instructions.

  1. Make sure the backing plate and manifold plate are clean and free of pry marks around the pry slots.
  2. Clean the backing plate and manifold plate mounting surfaces with a medium India stone (240 grit oilstone) as needed.
    Warning:

    Crushing hazard – risk of death or serious injury. Inadequate lifting equipment can fail and cause death or serious injury. Make sure all lifting equipment is rated for the load and in safe operating condition.

  3. Install hoist rings in the designated lifting points marked on the backing plate.
  4. Attach an overhead lifting device to the hoist rings and lift the backing plate.
  5. Slowly lower the backing plate onto the manifold plate. Make sure the guide pins align with the backing plate locating bores.
    Figure 1. Lowering the Backing Plate

    1. Hoist Ring

    2. Backing Plate

    3. Guide Pin

  6. Disconnect the overhead lifting device and remove the hoist rings.
  7. Install the screws that secure the backing plate to the manifold plate. Torque each screw to its specified value starting from the center and working outwards in a cross pattern. Refer to the assembly drawings for torque requirements.
    Figure 2. Installing the Backing Plate Screws

    1. Backing Plate

    2. Screw

    Figure 3. Torque Sequence
  8. If equipped, install the insulator board and torque the screws to the specified value. Refer to the assembly drawings for torque requirements.
    Figure 4. Installing the Insulator Board

    1. Insulator Board

    2. Screw

  9. Install the locating ring.
    Figure 5. Installing the Locating Ring

    1. Locating Ring

    2. Screw

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