A Comparative Study of Expected and Actual Lifetime of Engine Components in Heavy Equipment

The heavy equipment industry plays an important role in sectors such as construction and mining, where the reliability of machine components greatly affects operational efficiency. However, component life expectations are often not in line with the operational realities faced in the field. There is a knowledge gap regarding the match between the expectation and actual life of engine components, particularly on Komatsu PC200 Units. This study uses linear regression and gap analysis methods to evaluate the difference between the expectation and actual life of engine components on the Komatsu PC200 Unit. The main results showed that there was significant variation in the actual life of the components, with many components not reaching their expected life, which ranged from 7,800 to 26,925 hours. The weak linear relationship between expected and actual component life indicates that owner expectations are often not based on accurate empirical data. In addition, more extreme operational conditions tend to accelerate the deterioration of component life. This research makes an important contribution to the development of more realistic and data-driven maintenance strategies, which can improve component life prediction accuracy and operational effectiveness in the heavy equipment industry. .