PENERAPAN METODE FMEA PADA PERAWATAN SISTEM HIDROLIK KAPAL ISAP PRODUKSI TIMAH

Abstract

The hydraulic system is a critical component of the Tin Production Suction Dredge (KIP), responsible for powering various operational equipment. Failures in this system can disrupt production, increase downtime, and raise maintenance costs. This study aims to identify the types of failures in the hydraulic system of KIP Timah 07, analyze their causes and impacts using the Failure Mode and Effect Analysis (FMEA) method, and establish maintenance priorities based on Risk Priority Number (RPN) values. A descriptive-quantitative research method was employed, with data collected through observation, interviews, and documentation of failure records from 2025. The analysis involved identifying failure modes, determining Severity (S), Occurrence (O), and Detection (D) ratings, and calculating the RPN for each failure mode. The results indicate 29 failure incidents totaling 320.5 hours of downtime. The component most frequently experiencing failure was the Staffa cutter hose, followed by the cutter hydraulic pump, cutter hydraulic flange, and hose nipples. Primary causes of failure included component wear, high operating pressure, connection leaks, and suboptimal inspections. Applying the FMEA method enabled the identification of risk priorities, serving as a basis for developing a more effective preventive maintenance program. Implementing the maintenance recommendations is expected to enhance hydraulic system reliability, reduce failure frequency, minimize downtime, and improve the operational efficiency of the Tin Production Suction Dredge.