<![CDATA[This research was conducted to analyze the implementation of deck crane maintenance, identify operational obstacles, and formulate optimization efforts to improve the cargo handling performance on MV Tanto Keluarga. The study utilized a qualitative descriptive approach supported by quantitative operational data, gathering evidence through 12 months of observation during sea practice, ship documentation analysis, and semi-structured interviews. The informants included the Chief Officer, Bosun, and an Able Seaman. The findings reveal that deck crane maintenance was significantly delayed due to the high pressure of the ship's port schedule, which disrupted the Planned Maintenance System (PMS). Consequently, the lack of timely lubrication led to critical wire rope wear and slewing gear corrosion. This chain of component degradation directly caused a heave-up system disruption, resulting in a documented 4-hour operational downtime during cargo discharging in Tobelo Port. Optimization interventions were systematically carried out through strict pre-operational visual inspections, massive re-lubrication, and schedule calibration between cargo operations and preventive maintenance. Following these interventions, subsequent loading and unloading operations recorded zero technical downtime, demonstrating a tangible improvement in equipment reliability and operational efficiency]]>
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