Preventive maintenance (PM) is a systematic approach to maintaining equipment, machinery, and production systems to prevent unexpected failures and ensure smooth operations. Unlike corrective maintenance, which occurs after a breakdown, preventive maintenance involves scheduled inspections, servicing, lubrication, replacement of worn parts, and calibration of machinery. The primary objective of preventive maintenance is to enhance equipment reliability, reduce downtime, improve product quality, and extend the life of machinery. By addressing potential issues before they escalate into major problems, organizations can minimize production interruptions, reduce repair costs, and maintain a predictable workflow. Preventive maintenance encompasses several activities such as routine inspections, cleaning, adjusting, and replacing critical components based on time intervals, usage hours, or performance indicators. Condition-based monitoring, vibration analysis, oil analysis, thermal imaging, and other diagnostic techniques are often employed to detect early signs of wear or malfunction. A structured preventive maintenance program involves careful planning, documentation, and adherence to standard operating procedures, ensuring that maintenance is proactive rather than reactive. It also emphasizes employee training, clear maintenance schedules, and inventory of spare parts to facilitate quick interventions. In the context of production and operations management, preventive maintenance plays a vital role in maintaining high levels of operational efficiency. In push manufacturing systems, production is planned based on forecasts, and products are made in anticipation of demand. While