Factory Preventive Maintenance Best Practices

Why Preventive Maintenance in Factories?

Unplanned production downtime costs ₹10,000-₹1,00,000 per hour depending on the production line. Preventive maintenance reduces unplanned downtime by 45% and extends equipment life by 20%.

PM Program Components

• Equipment criticality assessment: Rank equipment by production impact
• PM schedules: Time-based and usage-based maintenance intervals
• Spare parts inventory: Critical spares on hand, reorder points defined
• Work orders: Standardised PM work order templates
• History tracking: Complete maintenance history per asset

Metrics to Track

• OEE (Overall Equipment Effectiveness): Target 85%+
• MTBF (Mean Time Between Failures): Increasing trend is good
• MTTR (Mean Time To Repair): Decreasing trend is good
• PM compliance: % of PMs completed on schedule — target 95%+