Maintenance Cost Reduction of Paddy Seed Production Machinery by Implementing Preventive Maintenance System

Production of paddy seed in seed industry involves several different functions and operations of seed production machinery. Maintenance of those machinery has a fundamental role in the production system through its impact on productivity as well as cost management. This paper will discuss the case study on analysis of possible cost reduction on maintenance of paddy seed production machinery through changes from the current practiced corrective maintenance system into preventive maintenance system. The study was mainly based on twenty four years of company's maintenance records of its seed production machinery which covered the failures history and actions undertaken. The methods were including the identification of critical components using Equipment Criticality Rating (ECR) and optimization of replacement schedule of critical components. The results indicated that eleven (11) components out of total 294 components in 8 specific machines have been identified as having considerable criticality rating and the changes from corrective maintenance system into preventive maintenance system may reduce about 39.4% of direct machinery maintenance cost.