Gulati rejects superficial RCAs. He requires evidence-based analysis using the 5W2H method (Who, What, When, Where, Why, How, How many).
His 3-layered RCA:
Exclusive insight: "Until you find a broken process, not a broken person, you haven’t finished the RCA." – Gulati
This paper reviews the core principles of maintenance and reliability best practices as emphasized in industry standards and training materials, including those by Ramesh Gulati. Key topics include proactive maintenance strategies (preventive, predictive, and reliability-centered maintenance), failure analysis, performance metrics (Overall Equipment Effectiveness, Mean Time Between Failures), and the role of leadership in reliability culture. The paper concludes that integrating these practices leads to reduced downtime, lower costs, and improved safety.
Gulati notes that over 80% of mechanical failures are lubrication-related (contamination, wrong viscosity, under/over greasing).
His 5 rules of world-class lubrication:
Gulati cites data that 40% of maintenance errors are due to lack of skill. His solution:
Most plants only track lagging indicators (MTBF, MTTR). Gulati insists on a balanced scorecard:
| Tier | Metric Type | Example | |------|-------------|---------| | 1 | Financial | Maintenance cost per unit produced | | 2 | Operational | Overall Equipment Effectiveness (OEE) – target >85% | | 3 | Tactical | Schedule compliance (target >90%) | | 4 | Leading / Predictive | Vibration trend, oil analysis particle count |
Key takeaway: Leading indicators predict failure 2-6 weeks in advance. Lagging indicators just record the crash.
Gulati is famous for his obsession with precision. He cites studies showing that a shaft misalignment of just 0.005 inches reduces bearing life by 50%.
His mandatory precision practices:
Gulati does not advocate for overly complex FMEAs. Instead, he pushes for Criticality Analysis:
His rule: Spend 80% of your reliability engineering time on the top 20% of assets by criticality.
