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PENERAPAN TEKNIK FAULT TREE ANALYSIS UNTUK MENGURANGI KECELAKAAN KERJA DI DEPARTEMEN REBUILD CENTER PT. X Bayu Idiyanto; Awang Surya
JTTM : Jurnal Terapan Teknik Mesin Vol 2 No 1 (2021): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v2i1.79

Abstract

Kecelakaan kerja pada saat melakukan perbaikan komponen sering terjadi, namun pekerja tidak peduli dengan metode pelaksanaan pekerjaan yang dilakukan, serta menimbulkan kecelakaan kerja. Workshop Plant Rebuild Center PT X mempunyai banyak potensi kecelakaan kerja. Pada tahun 2018, terjadi 26 kasus kecelakaan kerja, di antaranya 11 kasus near miss, 9 kasus property damage, 5 first aid dan 1 LTI. Perusahaan yang telah menerapkan sistem keselamatan dan kesehatan kerja sering mengalami kecelakaan kerja. Tujuan dari penelitian ini menentukan akar masalah kecelakaan yang sering terjadi. Adapun metode yang dipergunakan dalam penelitian ini Fault Tree Analysis. Dari hasil dan pembahasan didapatkan masalah kecelakaan kerja pada teknisi. Pertama, validasi prosedur assembly turbocharger hanya dilakukan sampai pada tingkat pengawas belum sampai ke tingkat manajemen. Kedua, manajemen tidak menyadari penyebab fatigue atau kelelahan salah satunya kurang jam tidur. Ketiga, sistem sosialisasi pekerjaan terkait penggunaan APD pada di proses assembly turbocharger belum dilakukan secara sistematis. Selanjutnya dari penerapan teknik FTA pada kasus-kasus yang lain didapatkan data bahwa kecelakaan kerja berhasil ditekan untuk tahun-tahun selanjutnya.
Analysis of Damage and Repairs to the Transmission Part of the Komatsu Type GD825-2 Grader Unit Wilarso, Wilarso; Bayu Idiyanto; Awang Surya; Hilman Sholih
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i1.1698

Abstract

The Plant Rebuild Center, owned by PT. X, must raise quality to meet customer expectations and fulfill field needs. According to customer warranty claims in 2022, oil leaks in the transmission control valves of GD825-2 type units—11 in total—are the most common cause. This research's operational goal is to identify the source of the most damage to transmission components, particularly in Komatsu GD 825-2 units, so that corrective action may be taken and the effects can be monitored. At PT X's Plant Rebuild Center, corrective measures were implemented and standard operating procedures were created to serve as a guide for rebuilding Komatsu GD 825-2 unit transmission components. The analytical approach applies five why analyses. The findings show that oil leaks in the transmission control valve are the most common cause of damage. The engineering techniques used to achieve this improvement included duplicating the sleeve using the manufacturer's standard reference and altering the o-ring seat height during the semi-finishing stage before measuring and cutting during the finishing process. This resulted in the surfaces of the sleeve and transmission housing being identical. Work Instructions (INK) for installing the GD825-2 unit transmission control valve and a Checksheet for the GD825-2 type Grader unit transmission assembly have been developed as Standard Operating Procedures (SOPs)