"Maintenance cost is the second expense item of milling industry. Therefore, millers should have a proactive approach about timing of the maintenance and performing this with minimum cost. And predictive maintenance which has become widespread in recent years can be used. When it is included in total plant management it will optimize availability of process machines and therefore will decrease maintenance costs significantly." Milling machine manufacturers attach importance to R&D activities to continuously improve effectiveness at plants and make good their charges with technologies they develop. But millers also have to do their parts for effectiveness. And maintenance is the most important of them. If maintenance is not performed adequately and in a timely manner, the mill will see unplanned stoppages and this will cause inadequate production and increased product costs. As product quality decreases, the mill may lose prestige. So it is important for minimizing costs that cause unplanned stoppages in order to regularly track mechanical conditions and other signs that show operating conditions of machines and process systems. Predictive maintenance steps in at this point. Predictive maintenance means improving efficiency, product quality and general effectiveness of production plants and when it is included in total plant management it will optimize availability of process machines and therefore will decrease maintenance costs significantly.