Abstract
Maintenance is one of the main activities in the manufacturing sector that greatly affects the quality and quantity of production, production costs, and customer satisfaction. Thus, it is necessary to plan a preventive maintenance schedule to maintain the condition of the machine so that the production process runs optimally. PT. Grafika Nusantara is a paper management industry company specializing in continuous form, printing, and office stationery, whose production process runs continuously. In the production process, the company often has problems with the punch machine, which is one of the machines in the factory as a printer for paper into envelopes. The problem is due to lack of supervision and maintenance on the punch machine by the company can result in the machine being damaged and the production target not being achieved. The objective of this paper is to plan preventive maintenance scheduling on the punch machine with the Critical Path Method (CPM) and to determine the cost of preventive maintenance for 1 year. The results that can be concluded in this study are that the maintenance scheduling of the punch machine with the CPM method can save maintenance time, which is 30 hours and the cost of preventive maintenance for 1 year is Rp. 1,400,000.
Highlights
Abstrak Perawatan merupakan salah satu kegiatan utama di bidang manufaktur yang sangat mempengaruhi kualitas dan kuantitas produksi, biaya produksi, dan kepuasan pelanggan
plan a preventive maintenance schedule to maintain the condition of the machine
a paper management industry company specializing in continuous form
Summary
Kualitas produk sangat berpengaruh dalam persaingan di bidang industri manufaktur. Peningkatan hasil produksi yang terus-menerus memerlukan proses produksi yang lancar. Tujuan penelitian tersebut untuk meningkatkan efektivitas pelaksanaan suatu aktivitas perawatan sesuai dengan task card C05-Check Pesawat Airbus 320-200, sehingga dihasilkan aktivitas perawatan yang lebih efektif terhadap jumlah waktu yang dibutuhkan dalam mengerjakan sebuah tugas kerja dari mulai awal perawatan sampai selesai atau sering di sebut Turn Around Time (TAT). Hasil yang diperoleh dari penelitiannya adalah desain jaringan CPM ini menghasilkan waktu perawatan yang lebih sedikit jika dibandingkan TAT standar perusahaan yaitu 13 hari kerja, sehingga dapat di simpulkan bahwa TAT dengan perhitungan CPM lebih efektif pada aktivitas perawatan C05-Check Air Bus 320-200. Berdasarkan objek permasalahan yang dihadapi oleh perusahaan dan penelitianpenelitaian yang pernah dilakukan sebelumnya tentang penjadwalan dengan CPM, maka tujuan penelitian ini dilaksanakan adalah untuk merencanakan penjadwalan preventive. Awalnya dilakukan pembuatan jariangan aktivitas/kegiatan perawatan mesin dan perhitungan waktu pada metode CPM sehingga akan diperoleh jalur kritis dari kegiatan perawatan tersebut. Hasil analisa tersebut akan dibandingkan dengan kondisi perusahaan sebelum memakai penjadwalan perawatan dengan CPM
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