Crawler Crane Maintenance Optimization with Increased Reliability Through Preventive and Corrective Maintenance Strategies

This research focuses on optimizing the maintenance strategy of a crawler crane to increase reliability through a combination of preventive and corrective maintenance.Operational and failure data were collected and analyzed to identify relevant probability distribution parameters.The results showed that applying optimal preventive maintenance intervals increased the crawler crane's reliability from 36.79% to 90.04%.In addition, the total maintenance cost per incident was successfully reduced from IDR 11,478,182 to IDR 1,870,657.Cumulatively, with the simulations and iterations carried out, the cost reduction carried out can save IDR 86,312,745 crawler crane maintenance costs if carried out with the same total duration of 6,738 hours.Simulations and iterations showed that the optimized maintenance strategy could reduce the risk of failure due to increased reliability and significantly improve the efficiency of maintenance operational costs.This research concluded that maintenance optimization using a probability distribution approach effectively increased reliability and reduced crawler crane maintenance costs.The use of appropriate preventive maintenance intervals has been shown to have a significant impact on reducing component failures and cost efficiency so that crawler crane operations can run more reliably and as planned.