Restructuring of “Electric Power Industry of Serbia” requires significant changes in operationsof all organizational units. The Coal Production Sector does not have a balanced development in relation to the Electricity Production Sector. Further efforts are needed toward a change inthe organization of coal production system,along withthe more efficient implementation of investments that are currently seriously lagging behind the plans.
Electro-mechanical maintenance of mining equipment in very complex conditions of mining production requires the application of modern principles of rationalization and optimization, provenin the numerous open-cast mines of Western Europe. This paper presents only one example of possible rationalization in the maintenance system of mining equipment, which refers to the system of aggregate replacement of large assemblies.