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ITS » Master Theses » Rekayasa Kualitas S2
Posted by yeni at 03/01/2007 11:50:03  •  28622 Views


PERENCANAAN INTERVAL PERAWATAN MESIN INJECTION MOULDING DENGAN METODE RELIABILITY CENTERED MAINTENANCE RCM DIPT. REXPLAST

THE PLANNING OF MAINTENANCE INTERVAL OF INJECTION MOULDING MACHINE WITH RELIABILITY CENTERED MAINTENANCE RCM METHOD AT PT. REXPLAST

Author :
BUDIHARSO, AGUS  




ABSTRAK

Permasalahan yang sedang dihadapi oleh PT. Rexplast yang bergerak dalam bidang plastic packaging terutama di bagian Injection Moulding adalah menentukan jenis kegiatan perawatan mesin terjadwal yang sesuai dengan keadaan sekarang dan menetapkan interval perawatan terjadwal yang optimal sehingga menghasilkan biaya total perawatan dan perbaikan yang minimal dari 17 mesin yang ada. Produktivitas suatu sistem produksi dipengaruhi oleh banyak faktor dan salah satu faktor yang penting adalah keandalan dari sistem produksi tersebut. Dalam penelitian ini akan dianalisis 4 mesin Injection Moulding dari 17 mesin yang ada. Data-data yang diambil berdasarkan laporan yang dibuat oleh operator yang bertugas pada saat kerusakan terjadi dalam bentuk Machine History Record dan Maintenance Activity Report. Data-data ini mencakup data komponen mesin yang rusak penyebab kerusakan data waktu antar kerusakan data waktu lama perbaikan dan data-data biaya. Metode yang digunakan dalam-penelitian ini adalah Reliability Centered Maintenance RCM dengan memadukan analisis kualitatif yang meliputi Failure Mode and Effect Analysis FMF.A da RCM Decision Diagram. Hasil dari analisis kualitatif -. mesin Injection Moulding yang dilakukan diperoleh 74 komponen kritis yang direkomendasikan untuk dilakukan suatu perawatan terjadual. Dari ke 4 komponen tersebut dilakukan suatu Uji Kolmogorov-Smimov untuk mengetahui distribusi data waktu antar kerusakan dan data waktu lama perbaikan sehingga didapat 10 komponen berdistribusi Exponential dan 64 komponen berdistribusi Weibull. Sedangkan jenis kegiatan perawatan terjadual diperoleh Scheduled On-Condition Task sebanyak 12 komponen Scheduled Restoration Task sebanyak 29 komponen Scheduled Discard Task sebanyak 8 komponen Scheduled Failure-Finding Task sebanyak 15 komponen dan No Scheduled Maintenance sebanyak 10 komponen. Dari 64 komponen ini dilakukan analisis kuantitatif untuk mengetahui interval perawatan terjadual yang optimal dengan biaya total perbaikan dan perawatan yang minimal sehingga diperoleh interval perawatan terjadual yang optimal untuk Mesin J selama 495.03313 jam Mesin F selama 767.26801 jam Mesin M selama 568.73208 jam dan Mesin M selama 745.48746 jam.


ABSTRACT

The problem which is dealt by PT. Rexplast which runs plastic packaging specializing in Injection Moulding is to decide the activity of existing maintenance schedule and also to optimize the interval of maintenance schedule in order to produce the minimum cost for total maintenance and reparation of the existing 17 machines. The productivity of a system is influenced by many factors. One of the most important factors is the reliability of its production system. This research analyzes 4 Injection Moulding machines out of the existing 17 machines. These data were taken based on the information from the machine operator who worked when the machine brokedown. That was reported at Machine History Record and Maintenance Activity Report. These data involve component data of the damaged machine cause of the damage interval data of machine damage time period for repairing and also data of costs occuring. The method used in this research is Reliability Centered Maintenance RCM combined with qualitative analysis which involves Failure Mode and Effect Analysis FMEA and RCM Decision Diagram The result of qualitative analysis of 4 Injection Moulding machines which have been done was that 74 critical components were recommended to have maintenance schedule. The test of Kolmogorov-Smirnov has been done to those 74 critical components in order to recognize data distribution between time of damage and period time of reparation. It was then found out that 10 components were Exponential distributed and 64 components Weibull The qualitative analysis was undertaken from 64 components in order to acknowledge the interval of optimization of maintenance schedule with the minimum of reparation total cost It was also found out that 12 components were of Scheduled On-Condition Task 29 components were of Scheduled Restoration Task 8 components were of Scheduled Discard Task 15 components were of Scheduled Failure-Finding Task and 10 components were of No Scheduled Maintenance. The optimum interval of maintenance schedule for Machine J was 495.03313 hours Machine F was 767.26801 hours Machine M was 568.73208 hours and Machine M was 745.48746 hours.



KeywordsReliability Centered Maintenance; Failure Mode and Effect Analysis; RCM Decision Diagram; Scheduled On-Condition Task; Scheduled Restoration Task; Scheduled Discard Task; Scheduled Failure-Finding Task; No Scheduled Maintenance
 
Subject:  Perencanaan manajemen
Contributor
  1. Dr. Ir. MOSES LAKSONO SINGGIH, M.Sc, M.Reg.Sc
    NURHADI SISWANTO, ST, MSIE
Date Create: 03/01/2007
Type: Text
Format: pdf; 54 pages
Language: Indonesian
Identifier: ITS-Master-3100002015704
Collection ID: 3100002015704
Call Number: 620.004 52 Bud


Source
Theses Rekayasa Kualitas RT 620.004 52 Bud p, 2002

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