Implementation of Lean Maintenance Method on High Pressure Boiler Feed Pump (HP BFP) PLTGU Block I Machine to Improve Overall Equipment Effectiveness (OEE)

This study was conducted at PT PLN Nusantara Power UP Gresik, focusing on enhancing the effectiveness of the High Pressure Boiler Feed Pump (HP BFP) at PLTGU Block I. The main issue addressed was the high level of maintenance waste, negatively impacting Overall Equipment Effectiveness (OEE). To overcome this, Lean Maintenance was applied in conjunction with Value Stream Maintenance Mapping (VSMM), Mean Time Between Failure (MTBF), Mean Time to Repair (MTTR), and Root Cause Failure Analysis (RCFA). Findings revealed dominant wastes such as Unproductive Work, Delay in Motion, and Poor Inventory Management. Post-improvement, OEE increased from 67% to 87%, while maintenance time was reduced from 9,780 minutes to 3,300 minutes. The study proves that Lean Maintenance implementation significantly enhances operational efficiency and reduces downtime.