Arios, Vijai Siingoton (2018) Perencanaan Perawatan Mesin TBR DT Menggunakan Metode Reliability Centered Maintenance (RCM) II Pada Departemen Continuous Filament Twisting (CFT) di PT. XYZ. Sarjana thesis, Universitas Brawijaya.
Abstract
Persaingan industri disertai dengan perkembangan teknologi yang pesat adalah suatu tantangan bagi industri-industri untuk meningkatkan kuantitas dan kualitas produknya. Untuk dapat meningkatkan kuantitas dan kualitas, diperlukan dukungan proses produksi yang efektif dan efisien, diantaranya terletak pada mesin. Untuk mencapai hal tersebut diperlukan adanya suatu sistem perawatan yang baik. PT. XYZ sendiri masih menerapkan strategi corrective maintenance, dimana berdasarkan data yang ada masih terdapat tingkat downtime yang tinggi pada mesin TBR DT mencapai 51.845 menit. Mesin TBR DT ini berfungsi untuk memberikan twist pada masing-masing ply (helai) benang agar dapat saling mengikat. Mesin TBR DT memerlukan perbaikan strategi perawatan menggunakan metode Reliability Centered Maintenance (RCM) II untuk menentukan strategi perawatan yang optimal. Proses penentuan strategi perawatan ini diawali dengan penentuan komponen kritis menggunakan diagram pareto melalui parameter waktu downtime tiap komponen. Setelah komponen kritis terpilih, dilakukan penentuan startegi perawatan menggunakan RCM II decision diagram dengan bantuan tahap Failure Mode and Effect Analysis (FMEA), dengan hasil yang dituangkan pada RCM II decision worksheet. Kemudian dilakukan penentuan jenis distribusi dan parameter data Time to failure (TTF) dan data Time to Repair (TTR) menggunakan minitab 18. Parameter yang didapat digunakan untuk menentukan nilai Mean Time to Failure (MTTF) dan Mean Time to Repar (MTTR). Kemudian dilakukan proses perhitungan interval perawatan (TM) dengan perbandingan total biaya perawatan. Perhitungan perbandingan keandalan komponen dan mesin menggunakan nilai MTTF dan TM. Perhitungan availability rate menggunakan perbandingan waktu corrective dan waktu preventive. Hasil dari penelitian ini didapatkan komponen kritis, yakni komponen bobbin, fan heatsink inverter dan clutch ring flange dengan strategi perawatan preventive. Untuk komponen bobbin dan clutch ring flange memerlukan strategi perawatan scheduled dicard task dan komponen fan heatsink inverter memerlukan strategi perawatan scheduled restoration task. Dari strategi perawatan tersebut didapatkan peningkatan keandalan mesin sebesar 65,68% dan availability rate komponen bobbin meningkat 14,26%, fan heatsink inverter meningkat 27,08% dan clutch ring flange meningkat 25,03%. Interval perawatan untuk komponen bobbin sebesar 5608,49 jam, fan heatsink inverter sebesar 553,78 jam dan clutch ring flange sebesar 626,45 jam.
English Abstract
Industry competition is accompanied by rapid technological developments is a challenge for industries to improve the quantity and quality of its products. To be able to increase the quantity and quality, it is required the production process that effective and efficient, which was located on the machine. To achieve this is required the existence of a system of good care. PT. XYZ itself still apply corrective maintenance strategy, which is based on the existing data there is still a high level of downtime on the machine TBR DT that reaching 51.845 minutes. TBR DT machine serves to provide a twist on each ply (strands) threads to be mutually binding. TBR DT machine requiring to be repaired its maintenance strategy using Reliability Centered Maintenance (RCM) II to determine the optimal treatment strategy. This treatment strategy determination process begins with determining the critical components using Pareto diagram through the parameters of downtime each component. After critical component selected, it is done the determination of treatment strategy using RCM II decision diagrams with the help of phase Failure Mode and Effect Analysis (FMEA), with the result that is poured on the RCM II decision worksheet. Then do the determination of the distribution and parameters of data Time to failure (TTF) and data Time to Repair (TTR) by using Minitab 18. The parameters obtained are used to determine the value of Mean Time To Failure (MTTF) and Mean Time to Repar (MTTR). Then do the calculation process of maintenance interval (TM) wich depend of the total cost of care. The calculation of reliability ratio and engine components by using MTTF values and TM values. The calculation of availability rate by using a ratio of corrective and preventive time. The results of this research obtained critical components, i.e. components of bobbin, fan heatsink inverter and clutch ring flange with treatment preventive strategies. Bobbin and clutch ring flange components requires scheduled dicard task maintenance strategy and component fan heatsink inverter requires scheduled restoration tasks maintenance strategy. From the treatment strategy, it is showed an increase of engine reliability in the amount of 65.68% and availability rate increased by 14.26% for bobbins components, fan heatsink inverter increased in the amount of 27.08% and the clutch ring flange increased in the amount of 25.03%. Maintenance intervals for bobbins components is 5608,49 hours, fan heatsink inverter is 553,78 hours and clutch ring flange is 626,45 hours.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2018/10/051800491 |
| Uncontrolled Keywords: | diagram pareto, failure mode and effect analysis (FMEA), reliability centered maintenance (RCM) II, keandalan, availability rate |
| Subjects: | 600 Technology (Applied sciences) > 620 Engineering and allied operations > 620.004 Design, testing, measurement, quality, maintenance, repair > 620.004 6 Maintenance and repair |
| Divisions: | Fakultas Teknik > Teknik Industri |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 26 Mar 2018 02:20 |
| Last Modified: | 16 Oct 2021 03:30 |
| URI: | http://repository.ub.ac.id/id/eprint/8926 |
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