Perancangan Kebijakan Perawatan dan Penentuan Persediaan Spare Part di Sub Sistem Evaporasi Pabrik Urea Kaltim-3 PT Pupuk Kalimantan Timur

Weny Yuliana Sari, Yudha Prasetyawan
Submission Date: 2012-08-01 09:21:32
Accepted Date: 2012-09-28 09:10:06

Abstract


Pabrik Kaltim-3 PT Pupuk Kalimantan Timur memberikan kontribusi 17,84 % untuk produksi amoniak dan 19,13 % untuk produksi urea dari total produksi di PKT. Salah satu proses di Pabrik Urea Kaltim-3, yaitu evaporasi merupakan proses dimana larutan urea dinaikkan konsentrasinya (dikentalkan) dari konsentrasi 75% menjadi 99,8%. Untuk  mencegah kegagalan fungsi, maka diperlukan aktivitas perawatan. Aktivitas perawatan yang dilakukan di PKT masih menunjukkan adanya over dan under maintenance. Oleh karena itu akan dilakukan perancangan kegiatan perawatan dengan metode Reliability Centered Maintenance II (RCM II) yang menghasilkan fungsi, kegagalan fungsi, serta Failure Mode and Effect Analysis (FMEA). Berdasarkan informasi pada FMEA tersebut, kemudian dihasilkan kebijakan perawatan dan pelaksana teknis, serta data historis kerusakan yang digunakan untuk menghitung interval waktu perawatan. Selain itu juga dilakukan perhitungan persediaan spare part dengan memperhatikan lead time pemesanan komponen. Dengan menentukan kebijakan perawatan  dan persediaan spare part yang tepat, maka biaya yang dikeluarkan dapat diminimalisir.

Keywords


Perawatan, FMEA, RCM II, interval waktu perawatan, dan lead time.

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