Perform a Preventive Maintenance Optimization

A PM Optimization involves several steps. Based on the MTBF and the calculation of the ratios, the system estimates the optimum time interval to maintain equipment.

Note: PM Optimization is available only if Failures With Replacements was selected as the failure type via the Reliability Distribution Builder

or Failure Type window.

PM Optimization is not available when Beta is less than or equal to one (Beta <= 1).

Steps

  1. Access the Reliability Distribution Analysis on which you want to perform a Preventive Maintenance optimization.
  2. In the left pane, select the PM optimization tab.

    The PM optimization plot appears in the workspace.

    PM Optimization

  3. In the upper-right corner of the workspace, select Maintenance Cost.

    The Maintenance Cost window appears.

    Maintenance Cost

    Note: If a PM Optimization has been performed previously, the Preventive Maintenance Optimization dialog box displays the results of the previous calculation.

  4. Enter values in the Planned Cost box and the Unplanned Cost box. You can manually enter the cost or you can select a query and use it to populate a cost box.

    Note: The value in the Unplanned Cost box must be greater than the value in the Planned Cost box.

    To select an existing query stored in the catalog that contains the data that you want to use to populate a cost field:

    1. Select Query next to the Planned Cost box or the Unplanned Cost box.

      The Select a query from the catalog window appears.

      Select a Query

    2. Select the needed query, and then select Open.

      Note: If you attempt to select a query that does not have any numeric fields, you will receive an error message.

      The cost box is populated with the name of the query you selected.

      Repeat steps 1 and 2 to select a query for the second cost field.

  5. In the Currency box, enter the currency symbol for the cost.
  6. Select OK.

    The system validates the data, and the PM optimization workspace displays the PM optimization plot and following information:

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