Chandra, Muhammad Rizky Eka Permata (2016) Analisis Keandalan Pada 542 Fn7 Finish Mill 2 Pabrik Tuban 1 Pt. Semen Indonesia (Persero) Tbk. Dengan Pendekatan Metode Reliability Centered Maintenance. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Fan 542 FN7 merupakan salah satu komponen utama dalam
pembentukan semen akhir di divisi Finish Mill 2 Pabrik Tuban 1
PT. Semen Indonesia (Persero) Tbk yang digunakan untuk
menghisap udara dari separator dan cyclone menuju bag filter.
Dari data downtime pada tahun 2011-2015 tercatat mesin ini total
mengalami 52 kali kegagalan atau menyumbang total 9% dari
total kegagalan yang ada pada divisi Finish Mill 2 dan berada
pada posisi ketiga mesin yang sering mengalami kegagalan. Oleh
karena itu, perlu adanya pemeliharaan mesin yang baik dan
terintegrasi.
Kemudian dipilihlah metode Reliability Centered
Maintenance (RCM) dimana merupakan proses sistematis yang
digunakan untuk menentukan hal yang harus dilakukan untuk
meyakinkan bahwa setiap fasilitas fisik dari perusahaan dapat
sesuai dengan fungsi desain secara terus menerus dalam kurun
operasi waktu tertentu. Komponen yang dianalisis dalam RCM
adalah komponen kritis yang sebelumnya dianalisis terlebih
dahulu menggunakan metode Failure Mode, Effect and Critically
Analysis (FMECA). Komponen yang dianalisis adalah komponen
dengan nilai Risk Priority Number >60 (diatas status critically
high).
Analisis pada mesin fan 542 FN7 didapatkan bahwa terdapat
7 komponen kritis yaitu blade impeller, diffuser, kopling, journal
bearing, roller bearing¸ casing and inlet box dan
vibrationdetector dimana meliputi 11 mode kegagalan yang
kemudian dianalisis menggunakan metode RCM. Adapun hasil
dari metode RCM pada komponen tersebut adalah terdapat 8
mode kegagalan yang merupakan hidden failure consequence dan
menggunakan strategi on condition task (predictive maintenance).
Kemudian terdapat 1 mode kegagalan merupakan hidden failure
consequence dan menggunakan strategi scheduled restoration
task (preventive maintenance), serta 2 mode kegagalan
merupakan operational consequence dan menggunakan strategi
scheduled restoration task (preventive maintenance)
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Fan 542 FN7 is one of the main components in the final
cement process at Finish Mill division 2 Tuban 1 PT. Semen
Indonesia (PERSERO) Tbk, which is used to blow air from
cyclone, separator to bag filter. From the downtime data in 2011-
2015, it was recorded that this machine have 52 times of failure
or total accounted for 9% of the total failure of the existing
division Mill Finish 2 and it is in third position with frequent
engine failures. Therefore, there needs to be maintain the
machine good and integrated.
Then Reliability Centered Maintenance (RCM) was choosen
which is a systematic process that is used to determine what
should be done to ensure that every physical facilities of the
company can be in accordance with the design function
continuously within a certain time operation. The components
that analyzed by RCM is a critical component which previously
analyzed using Failure Mode, Effects and Critically Analysis
(FMECA). Components analyzed are components with Risk
Priority Number value> 60 (above the status of critically high).
Analysis on fan 542 FN7 found that there are seven critical
components, that are blade impeller, diffuser, clutch, journal
bearings, roller bearing, casing and inlet box and vibration
detector which covers 11 failure modes were then analyzed using
RCM. The results of the RCM method on the component failure
modes are there 8 component which is hidden consequence of
failure and use on condition task (predictive maintenance)
strategies. Then, there is one mode of failure is a failure hidden
consequence and use scheduled restoration task (preventive
maintenance) strategies, as well as two modes of failure is a
consequence operational and use scheduled restoration task
(preventive maintenance) strategies.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 620.004 52 Cha a |
| Uncontrolled Keywords: | Finish Mill, Reliability Centered Maintenance, Risk Priority Number |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA169 Reliability (Engineering) |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 08 Jun 2020 06:32 |
| Last Modified: | 08 Jun 2020 06:32 |
| URI: | http://repository.its.ac.id/id/eprint/76118 |
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