IMPLEMENTASI SIX SIGMA UNTUK MENGURANGI KERUSAKAN UNDERCARRIAGE UNIT DUMP TRUCK MERCY ACTROS 4843K DI PERUSAHAAN KONTRAKTOR PERTAMBANGAN

HABIB, AHMAD THARIQ (2022) IMPLEMENTASI SIX SIGMA UNTUK MENGURANGI KERUSAKAN UNDERCARRIAGE UNIT DUMP TRUCK MERCY ACTROS 4843K DI PERUSAHAAN KONTRAKTOR PERTAMBANGAN. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

The coal mining industry has an important and vital role in providing energy sources. To be able to carry out the production process, mining companies cooperate with mining contractor companies. PT. X is a mining contractor company that owns heavy equipment assets, one of which is Dump truck Mercy Actros 4843K with the largest unit population in the South Kalimantan area. In 2021, the Dump truck Mercy Actros 4843K has problem problems with damage to the Undrecarriage component, that are 140 times with a Downtime value of 392 hours where this number is the highest when compared to other components. This study aims to determine the type of damage that occurred, the causes, proposed improvements and implementation using the DMAIC method (Define, Measure, Analyze, Improve, Control). The data collected showed that there were five types of damage, namely stabilizer loose, bolt lever broken, front spring bushing broken, bracket spring broken, and rear spring broken. From the fishbone diagram, the factors causing the damage include material, man, method, and environmental factors. The proposed improvements are performing road maintenance, redesigning washers, making stopper springs, replacing bushings, making parameter standards and providing training. The implementation of the proposed improvements that have been carried out in a three-month period resulted in a decrease in the number of damage to 11 times and an increase in the sigma value to 4.2. keyword: Mining contractor, Dump truck Mercy Actros 4843K, Undercarriage component, DMAIC methode. Industri pertambangan batu bara memiliki peranan penting dan vital dalam menyediakan sumber energi. Untuk dapat melakukan proses produksi, perusahaan pertambangan melakukan kerja sama dengan perusahaan kontraktor pertambangan. PT. X merupakan perusahaan kontraktor pertambangan yang memiliki aset alat berat, salah satunya adalah Dump truck Mercy Actros 4843K dengan populasi unit terbanyak di area Kalimantan Selatan. Pada tahun 2021, unit Dump truck Mercy Actros 4843K mengalami permasalahan adanya kerusakan pada komponen Undrecarriage yaitu sebanyak 140 kali dengan nilai Downtime 392 jam. Jumlah ini adalah paling tinggi jika dibandingkan dengan komponen lain. Penelitian ini bertujuan untuk mengetahui jenis kerusakan yang terjadi, penyebab, usulan perbaikan serta implentasinya dengan menggunakan metode DMAIC (Define, Measure, Analyze, Improve, Control). Data yang dikumpulkan menunjukan terdapat lima jenis kerusakan yaitu stabilizer lepas, Bolt lever broken, Bushing front spring broken, Bracket spring broken, dan Rear spring broken. Dari fishbone diagram didapatkan faktor-faktor pneyebab terjadinya kerusakan antara lain faktor material, man, methode, dan environment. Usulan perbaikan yang dilakukan yaitu melakukan maintenance jalan, redesain washer, membuat stopper spring, penggantian Bushing, pembuatan standar parameter dan pemberian pelatihan. Implementasi usulan perbaikan yang telah dilakukan dalam periode tiga bulan menghasilkan penurunan jumlah kerusakan menjadi 11 kali dan peningkatan nilai sigma menjadi 4.2. Kata Kunci: Kontraktor Pertambangan, Dump truck Mercy Actros 4843K, komponen Undercarriage, Metode DMAIC.

Item Type:	Thesis (S1)
Call Number CD:	FT/IND. 22 091
Call Number:	ST/16/22/008
NIM/NIDN Creators:	41620110056
Uncontrolled Keywords:	Kontraktor Pertambangan, Dump truck Mercy Actros 4843K, komponen Undercarriage, Metode DMAIC
Subjects:	300 Social Science/Ilmu-ilmu Sosial > 300. Social Science/Ilmu-ilmu Sosial > 303 Social Process/Proses Sosial > 303.4 Social Change/Perubahan Sosial > 303.45 Deterioration and Decay/Kerusakan dan Peluruhan 300 Social Science/Ilmu-ilmu Sosial > 330 Economics/Ilmu Ekonomi > 338 Production, Industrial Economics/Produksi, Ekonomi Industri > 338.2 Extraction of Mineral/Industri Pertambangan 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 622 Mining and Related Operations/Operasi Pertambangan dan Operasi Terkait > 622.3 Mining for Specific Materials/Jenis Pertambangan Tertentu 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 622 Mining and Related Operations/Operasi Pertambangan dan Operasi Terkait > 622.8 Mine Health and Safety/Keselamatan dan Keamanan di Pertambangan
Divisions:	Fakultas Teknik > Teknik Industri
Depositing User:	Amin Sujatmiko
Date Deposited:	18 Oct 2022 03:22
Last Modified:	19 Oct 2022 01:49
URI:	http://repository.mercubuana.ac.id/id/eprint/65490

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