Replacing part of an existing time-based schedule
You can partly replace an existing schedule of a selected activity definition. The part of the schedule which includes time-based maintenance activities for which maintenance orders are already generated, is not replaced and remains unaffected.
This feature is available for the activity definitions that exist in a compiled maintenance plan. You can partly replace the schedule of a selected activity definition in > .
Procedure
1. At Definitions & Schedules, select the activity definition whose existing schedule you want to partly replace.
2. On the action panel, click Schedule time-based activities.
The Schedule dialog box appears:
3. Select a start date-time for the new schedule in Replace schedule starting on.
 | You can only set a new schedule for recurring activities within the sequence for which no maintenance orders are generated. So the start date-time of the new schedule must be later than either: • the start date-time of the selected activity definition; • the start date-time of the last generated maintenance order; • the system date-time; • depending on which of these three date-times is latest. |
4. In Frequency, select a frequency for the new schedule.
5. In Occurrences, specify how often and, if relevant, on what day activities should recur in the new schedule.
6. Click OK.
A new schedule is applied to the selected activity definition as of the selected start date.
 | Use the Action on selection > Schedule time-based activities option or Schedule predictive-based activities option to simultaneously modify the schedules of multiple-selected activity definitions. |