Entering Stress Ratings and Life Limits—Exercises

Main Exercise

Purpose: The purpose of this exercise is to define stress ratings for your nX72ENG7010 engine, high and normal, and then enter life limits for the different stress ratings.

Define Stress Ratings

Purpose: The purpose of this exercise is to show you how to define stress ratings for your nX72ENG7010 engine. In this example, we will define two stress ratings, High and Normal.

Prerequisites: Requires that the Template Structure-Key exercises have been completed.

Windows:
Stress Ratings

Steps: To complete this exercise, perform the following steps.

  1. Open the Stress Ratings window.
  2. Create a new record (F5) and enter N as the stress rating ID and Normal as the stress rating description.
  3. Specify additional data:
    Stress Rating Template Part No: nX72ENG7010
    Stress Rating Template Part Rev: *
  4. Enter a new record for stress rating ID, H - High (same additional data)
  5. Save the records (F12).
  6. Select the record for the stress rating ID N, right-click, and then click Set Default.

Define Life Limits

Purpose: The purpose of this exercise is to show how to define life limits for the created Compressor in your nX72ENG7010 engine.

Prerequisites: Requires that the previous exercise has been completed.

Windows:
Serial Part Revision

Steps: To complete this exercise, perform the following steps.

  1. Open the Serial Part Revision window.
  2. Query (F3) for the part number nX72COM7013, Compressor (life limited), Rev *
  3. Click the Life Limit tab and enter 30 as the Forewarning Days.
  4. Save the record (F12).
  5. Right-click and then click Get Stress Ratings.
  6. Valid stress ratings are retrieved for all the template parts in which the compressor part is included.
  7. Specify additional data for both stress ID's on your engine nX72ENG7010 by using the information in the following table:
Stress Rating ID Max No of Repairs Calendar Life Limit
Normal 5 24
High 3 12
  1. Optionally, you can enter additional information on the life limited part in the Task Remark field. When a LLP task is created, this information will be transferred to the Task Remark field of the corresponding task record on the maintenance order.
  2. Save the records (F12).
  3. Select each stress rating record and enter a life limits for the operational parameter in the lower section of the window. Use the information in the following table:
Stress Rating ID Life Limit
Normal 2000
High 1000
  1. Save the information (F12).