ITEM TOOLKIT

232 ITEM ToolKit Getting Started Guide
9. Select each of the remaining 3 RI’s in the system; click “Fault Isolation to a group of RI’s” in the General tab and
make sure “Group 1” is selected in the “The Maintenance Philosophy & Fault Isolation dialog tab”.
Failure Rate Allocation
1. Select the first RI item in the system, click the “Maintenance Element & Failure Rate Allocation” dialog tab and select
Preparation in the Maintenance combo box (G). The following screen is displayed:
G
2. In the %Allocation column (H), enter 80% against “Computer P/S” and 20% against “Controller P/S”. The screen
should now look like the example below.
H
3. You have just allocated how you think the failures will be fixed for the selected RI. Eighty percent of the time the
Power Supply will be fixed by replacing the Computer P/S and 20% of the time by replacing the Controller P/S.
4. To complete the Failure Allocation, you should allocate percentages for each maintenance element, for each RI in the
system.