OPTIMALISASI PERAWATAN PENGABUT BAHAN BAKAR GUNA MENDUKUNG KINERJA MESIN DIESEL GENERATOR DI KAPAL MV. DEWI AMBARWATI

Abstract

Akmal Nurhakim, Moch, 564211205.” Optimization of Fuel Fogger Maintenance to Support Diesel Generator Engine Performance on MV Ship. Dewi Ambarwati” This research aims to evaluate and optimize the maintenance of the fuel injector valve in the diesel generator engine onboard MV. Dewi Ambarwati. The main issues identified during the sea practice include the uneven exhaust gas temperature between cylinders and the malfunctioning of the fuel injector valve. Using a qualitative root cause analysis approach, the research was conducted over a 12 month period, from August 13, 2023, at Gresik Port to August 13, 2024, at Garongkong Port. Data collection techniques included direct observation, interviews, and documentation. The findings reveal that the variation in exhaust gas temperature was caused by a stuck rack in the fuel injector pump, clogged fuel filters, and disturbances in the cooling system. Meanwhile, the fuel injector valve malfunctioned due to nozzle wear, spring fatigue, and inadequate periodic maintenance. Proper actions such as lubrication, cleaning, replacement of worn components, and adherence to maintenance procedures based on the manual book and the Plan Maintenance System (PMS) significantly improved engine performance and reduced the risk of damage. This study recommends the implementation of scheduled maintenance and the use of high-quality spare parts to maintain operational efficiency on board.