Optimization of preventive maintenance intervals

In the paper, the methodology of optimization of planned preventive maintenance is proposed, which is based on the utilization of data obtained from a maintenance information system - adjusting the database structure, collection and processing of data. The data processing algorithm is based on the application of theory of replacement and its modification for the given problem. The core principle of the algorithm is the minimization of costs of maintenance and operation of production equipment. The algorithm can be either used as a separate tool or integrated into the computer maintenance management system as a complementary module. Therefore it enables to optimize the intervals of various levels of planned preventive maintenance of most of the production equipment in a company. A practical example of application of such algorithm is presented in the end of the paper.