PERFORMANCE ANALYSIS AND MAINTENANCE STRATEGY OF THE SANY SW955K1 WHEEL LOADER AT PT SUMBAWA BETON
Keywords:
Heavy Equipment Performance, Maintenance Management, Productivity Optimization, SANY SW955K1, Wheel LoaderAbstract
A wheel loader is a piece of heavy equipment that plays an important role in the transfer of aggregate materials in ready-mix concrete production. Suboptimal equipment performance can reduce work efficiency and disrupt the production process if it is not supported by robust maintenance management. This study aims to analyze the operational performance and maintenance strategy of the Sany SW955K1 wheel loader at PT Sumbawa Apsara Beton, West Sumbawa Regency. The research adopted a descriptive quantitative approach, drawing on field observations, interviews with operators and mechanics, and company documentation. The analysis was conducted based on cycle time, effective working time, and work efficiency parameters. The results show that the Sany SW955K1 wheel loader has an average cycle time of 37.12 seconds with a work efficiency level of 71%. Total operational delays reached 137 minutes, of which 111.5 minutes were avoidable delays such as operator tardiness and unmanaged breaks. Through the implementation of consistent preventive maintenance, improvement of operator skills, the use of genuine spare parts, and regular equipment performance monitoring, avoidable delays could potentially be reduced by 50%. This intervention could extend the effective working time from 333 minutes to approximately 388.75 minutes per day, raising work efficiency to around 83%. Consequently, equipment productivity is projected to increase by 16–17% while concurrently reducing idle time and operational costs.
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