Create PRT as Equipment & activate PRT view. Assign default counter & maintenance plan.
Assign that PRT in Production Routing in CR01 / CR02. Define Usage value formula for calculating Usage hours.
Based on this & Production Order confirmation, measurement document will get created for that default counter assigned in equipment master.
-----------------------------------------------------------------------------------------------------------------------
For Maintenance plan with more than 40 char, check for the long text with SAVE_TEXT & COMMIT_TEXT.