scholarly journals TOTAL PRODUCTIVE MAINTENANCE PADA CHIPER AREA (Study Kasus di PT. Kutai Timber Indonesia Particle Board)

2016 ◽  
Vol 13 (2) ◽  
pp. 1-8
Author(s):  
Arik dwi Hariyanto ◽  
Dwi Iryaning Handayani
Keyword(s):  
Particle Board ◽  
Total Productive Maintenance ◽  
Mean Time Between Failure ◽  
Mean Time To Repair ◽  
Mean Time ◽  
Training Skill

Mesin merupakan komponen utama dalam proses produksi, apabila salah satu mesin mengalami kerusakan maka proses produksi akan berpengaruh, target produksi berkurang, dana untuk perbaikan kerusakan tinggi dan pada akhirnya perusahaan mengalami kerugian. Oleh karena itu perlu dilakukan perawatan mesin secara berkelanjutan agar kerusakan mesin dapat diminimalkan dan fasilitas produksi dapat bekerja sebagaimana yang diharapkan. Penelitian ini bertujuan dapat mengetahui performance maintenance yang diterapkan di PT. Kutai Timber Indonesia Particle Board. Penelitian ini menggunakan konsep Total Productive Maintenance dalam menganalisa terjadinya breakdown mesin pada Chiper Area. Nilai Mean Time Between Failure (MTBF) semakin meningkat sejumlah 112.83 menit sehingga peningkatan keandalannya dikatakan baik sedangkan nilai Mean Time To Repair (MTTR) sebesar 13,88 menit hal ini menunjukkan bahwa kemampuan operator maintenance kurang baik. Nilai Availability mesin mengalami peningkatan sebesar 89%. Dengan demikian perlu dilakukan training skill kepada operator maintenance, dikarenakan hasil MTTR yang didapatkan masih tidak stabil,selain itu perlu menerapkan perawatan mandiri atau small repair pada setiap mesin yang di operasikan, Availability mesin perlu ditingkatkan lagi, dengan nilai availability mesin yang lebih tinggi sehingga meningkatkan produktivitas tanpa mengesampingkan faktor-faktor yang lain. Kata Kunci: Maintenance, Mesin, Produktivitas.

Foil Air/Gas Bearing Technology — An Overview

1997 ◽  
Author(s):  
Giri L. Agrawal
Keyword(s):  
High Temperature ◽  
Analytical Methods ◽  
High Speed ◽  
Test Results ◽  
Air Bearings ◽  
Mean Time Between Failure ◽  
Foil Bearing ◽  
Cryogenic Liquids ◽  
Gas Bearing ◽  
Mean Time

This paper summarizes the chronological progress of foil air bearings for turbomachinery during the last 25 years. Descriptions of various machines which are in production are provided. The foil bearing air cycle machine on the 747 aircraft has demonstrated an MTBF (mean time between failure) in excess of 100,000 hours. Many advantages of foil air bearings are noted. Various designs of foil air bearings presently in use and their relative merits are described. Analytical methods, their limitations, and their relationships with test results are noted. Descriptions of various machines built and tested in process fluids being gases, other than air, and cryogenic liquids are described. Conclusions are drawn that various high speed turbomachines including high temperature applications can be designed and developed using foil air bearings which will increase efficiency and reduce cost of these machines.

scholarly journals Perencanaan Perawatan Mesin Welding Mig Pada Produksi Sub Frame Di PT. XYZ Dengan Metode Reliability Centered Maintenance (RCM)

2021 ◽  
Vol 6 (1) ◽  
pp. 26-38
Author(s):  
Zulkani Sinaga ◽  
Solihin Solihin ◽  
Mochamad Ardan
Keyword(s):  
Failure Mode ◽  
Time To Failure ◽  
Risk Priority Number ◽  
Mean Time To Failure ◽  
Effect Analysis ◽  
Mean Time Between Failure ◽  
Reliability Centered Maintenance ◽  
Mean Time To Repair ◽  
Mean Time

Pemeliharaan merupakan suatu proses yang dilakukan untuk menjaga keandalan, ketersediaan dan sifat mampu merawat komponen atau mesin. Program pemeliharaan yang efektif dan efisien akan mendukung peningkatan produktifitas sistem produksi. PT. XYZ merupakan perusahaan nasional bergerak dibidang karoseri truck mengalami penurunan produktivitas disebabkan belum adanya strategi perawatan khususnya mesin welding jenis MIG sehingga sering terjadi downtime mesin mengakibatkan proses produksi menjadi terhambat. Berdasarkan alasan tersebut dibutuhkan program pemeliharaan yang efektif dan efisien dengan menerapkan analisis menggunakan metode  Reliability Centered Maintenance (RCM) guna menciptakan metode pemeliharaan yang akurat, fokus, dan optimal dengan tujuan mencapai keandalan yang optimal. Penelitian dilakukan dengan mengikuti langkah-langkah perhitungan berdasarkan Failure Mode and Effect Analysis (FMEA) dan penetapan strategi pemeliharaan dengan dibantu menggunakan software minitab 18. Hasil penelitian diperoleh Risk Priority Number (RPN) untuk komponen wire feeder sebesar 611, dengan pola distribusi waktu normal, nilai parameter median 61,9391 dan standar deviasinya 48,6053, nilai Mean Time To Failure (MTTF) sebesar 61,9391 jam dan selang interval waktu penggantian komponen sebesar 10,1349. Berdasarkan hasil perhitungan performance maintenanace diketahui nilai Mean Time Between Failure (MTBF) antara 31,92 ~ 72,09 jam, Mean Time To Repair (MTTR) anatara 1,19 ~ 1,78 jam dan availability antara 94,67% ~ 98,24%, setelah dilakukan tindakan perawatan pencegahan selama periode tersebut dihasilkan nilai availability sebesar 98,01% artinya kerusakan pada komponen wire feeder dapat teratasi.

scholarly journals Improved Reliability of the TF40B Marine Gas Turbine Engine in the LCAC Fleet

1991 ◽  
Author(s):  
Eleanor M. Allison ◽  
Edward M. House
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Turbine Engine ◽  
Mean Time Between Failure ◽  
Air Cushion ◽  
Corrective Actions ◽  
Mean Time ◽  
The U.S

Four Textron Lycoming TF40B marine gas turbine engines are used to power the U.S. Navy’s Landing Craft Air Cushion (LCAC) vehicle. This is the first hovercraft of this configuration to be put in service for the Navy. Operation and test of the first production craft revealed deficiencies and less than desirable reliability, but confirmed the validity of its design and ability to perform the mission. After intensive efforts to resolve these problems, reliability trends began to improve as a result of corrective actions incorporated. Today, the LCAC fleet has accrued over 50,000 engine operating hours. Presented here are the changes which have been incorporated into the configuration of the TF40B engine to eliminate both engine unique and vehicle related discrepancies revealed through fleet experience. These changes have contributed significantly toward the improvement of the engine’s mean time between removal (MTBR) and mean time between failure (MTBF) rates.

scholarly journals ANALISIS PREVENTIVE MAINTENANCE DENGAN METODE MENGHITUNG MEAN TIME BETWEEN FAILURE (MTBF) DAN MEAN TIME TO REPAIR (MTTR) (STUDI KASUS PT. GAJAH TUNGGAL TBK)

Heuristic ◽  
2020 ◽  
Vol 17 (2) ◽  
pp. 87-94
Author(s):  
Nur Fadilah Fatma ◽  
Henri Ponda ◽  
Rizky Aditya Kuswara
Keyword(s):  
Preventive Maintenance ◽  
Mean Time Between Failure ◽  
Mean Time To Repair ◽  
Mean Time

Mesin beroperasi secara terus menerus menyebabkan menurunnya tingkat kehandalan peralatan serta menyebabkan sering terjadinya breakdown dan downtime yang tinggi pada mesin-mesinnya terutama pada mesin Extruder (ITE). Untuk meminimalisir terjadinya breakdown dan downtime maka perlu adanya sistem penjadwalan perawatan yang baik guna mencegah terjadinya kerusakan mesin. Mean Time Between Failure (MTBF) dan Mean Time to Repair (MTTR) adalah salah satu metode sebagai acuan untuk menetapkan jadwal perawatan yang efektif. Oleh karena itu, diperlukannya tindakan preventive maintenance agar dapat meningkatkan kinerja dari perusahaan, Dari hasil analisa didapatkan nilai Mean Time Between Failure (MTBF) 259,04 menit dan Mean Time to Repair (MTTR) 19.990,1 menit. Perubahan penjadwalan preventive maintenance dapat dilakukan dengan interval waktu 2 minggu sekali untuk aktivitas cleaning ac panel dan cleaning motor blower. Hasil penerapan tindakan preventive maintenance rata-rata 98% sehingga mesin mampu bekerja secara optimal.

scholarly journals Effect of Preventive Maintenance on the Production Line Machines and Systems Reliability: Case Study

2020 ◽  
pp. 58-65
Author(s):  
A. M. Badiea ◽  
A. A. Adel ◽  
H. A. Aamer
Keyword(s):  
Preventive Maintenance ◽  
Production Line ◽  
Production Lines ◽  
Mean Time Between Failure ◽  
One Year ◽  
Mean Time

The aims of this study are to introduce the appropriate preventive maintenance to the production line machines at the company to increase their reliability and reduction the shutdown, and to obtain more safety. Mean time between failure, mean down time and availability are investigated as the best indicators to generally evaluate all type of maintenance. Pareto diagram and Effect-Cause techniques both have been used for identifying where and what are the problems in the production lines. The big and serious way that the company staff was using was maintenance of run to failure. Many solutions in this paper are introduced to the company to follow the proper preventive maintenance. After one year monitoring to those production lines, their productivity increases by 15.47% and the reliability becomes high.

Sign in / Sign up

Export Citation Format

Share Document