STRATEGI PENJADWALAN PERAWATAN SISTEM PENDINGIN PADA KAPAL CARGO 3650 DWT

Abstract

This study aims to enhance the closed cooling system's reliability on the cargo 3650 dwt
ship by evaluating maintenance schedules. To achieve this, an effective maintenance program is
necessary. The Fault Tree Analysis (FTA) method is used to analyze potential component failures and
identify main causes. A total of 22 components are identified, including Main FW Cooler, Auxiliary
Sea Water Pump, Turbocharger, and others. All components are assessed to determine critical ones,
included in the minimal cut set table, and relationships for a Reliability Block Diagram (RBD).
Additionally, distribution types are determined to model time between component failures and predict
system reliability. Reliability calculations are done for each component, and results measure overall
system reliability. Turbocharger is the component with the shortest scheduling time, t=1650 hours, a
reference for maintenance. The final stage involves cost calculations to compare Corrective and
Preventive Maintenance. Preventive maintenance analysis improves cost and time efficiency. Thus,
implementing a maintenance program based on this research can enhance cooling system reliability
on the 3650 dwt ship.