48 | Jurnal Integrasi | Vol.16 No.1, April 2024, 48-57| e-ISSN: 2548-9828 Analisis Efektivitas Rotary Car Dumper (RCD) 3 dengan Metode Overall Equipment Effectiveness (OEE) di PT Bukit Asam Unit Pelabuhan Tarahan Rizky Agung Perwira * , Rizqi Wahyudi * , dan Andhyka Tyaz Nugraha *  Institut Teknologi Sumatera Program Studi Teknik Industri Jl. Terusan Ryacudu, Way Huwi, Kec. Jati Agung, Lampung Selatan, 35365, Indonesia E-mail: rizky.19117008@student.itera.ac.id, rizky.wahyudi@ti.itera.ac.id, andhyka.nugraha@ti.itera.ac.id Corresponding : rizky.wahyudi@ti.itera.ac.id Abstrak PT Bukit Asam Unit Pelabuhan Tarahan memiliki mesin dan alat yang digunakan untuk membantu aktivitasnya dan tentunya secara tidak langsung menunjang produktivitasnya, salah satu mesin tersebut yaitu Rotary Car Dumper (RCD) 3. Metode Overall Equipment Effectiveness (OEE) dapat mengidentifikasi kemacetan pada sebuah alat atau mesin yang digunakan di perusahaan. Penggunaan metode Six Big Losses pada penelitian ini dapat mengetahui faktor apa saja yang memberikan kontribusi terbesar yang mengakibatkan rendahnya efektivitas penggunaan mesin RCD 3 di PT Bukit Asam Tbk unit Pelabuhan Tarahan. Setelah nilai losses didapatkan selanjutnya akan dianalisis maintenance, repair and overhaul (MRO) yang diterapkan dan apakah MRO berpengaruh terhadap losses tersebut. Berdasarkan penelitian yang telah dilakukan nilai OEE dari mesin RCD 3 sebesar 6%, dengan nilai rata-rata availability sebesar 52%, performance sebesar 12% dan quality sebesar 100%. Nilai six big losses tertinggi diperoleh dari set up and adjusment losse dan reduced speed losses, dimana kedua losses tersebut diperoleh nilai rata-rata sebesar 46%. PT Bukit Asam Unit Pelabuhan Tarahan telah menerapkan planned maintenance seperti preventive maintenance dan corrective maintenance pada periode pengamatan dari bulan Januari 2021 sampai Desember 2021. Kata kunci: Maintenance, Repair and Overhaul, Overall Equipment Effectiveness, Six Big Losses, Total Productive Maintenance Abstract PT Bukit Asam Tarahan Port Unit has machines and tools that are used to assist its activities and of course indirectly support its productivity, one of these machines is the Rotary Car Dumper (RCD) 3. The Overall Equipment Effectiveness (OEE) method can identify bottlenecks in a tool or machines used in the company. Using the Six Big Losses method in this research can determine what factors make the biggest contribution resulting in the low effectiveness of using the RCD 3 machine at PT Bukit Asam Tbk Tarahan Port unit. After the losses value is obtained, the maintenance, repair and overhaul (MRO) implemented will then be analyzed and whether MRO has an effect on these losses. Based on research that has been conducted, the OEE value of the RCD 3 machine is 6%, with an average value of availability of 52%, performance of 12% and quality of 100%. The highest six big losses values were obtained from set up and adjustment losses and reduced speed losses, where the two losses obtained an average value of 46%. PT Bukit Asam Tarahan Harbor Unit has implemented planned maintenance such as preventive maintenance and corrective maintenance during the observation period from January 2021 to December 2021. Keywords: Maintenance, Repair and Overhaul, Overall Equipment Effectiveness, Six Big Losses, Total Productive Maintenance Jurnal Integrasi Vol. 16 No. 1, April 2024, 48-57 e-ISSN: 2548-9828 Article History Received January 2024 Accepted April 2024