PT Len Industri (Persero) bagian produksi modul surya merupakan perusahaan manufaktur yang telah menggembangkan bisnis dan produk-produk Modul Surya yang telah terpasang di berbagai pelosok Indonesia. Pada proses manufaktur pada pembuatan modul surya mengalami masalah pada mesin yang digunakan dimana memiliki tingkat downtime tinggi sehingga mengakibatkan terganggunya proses produksi. Maka dari itu perlu adanya analisis mengenai tingkat efektivitas mesin yang bertujuan untuk mengetahui kinerja produksi dan mengidentifikasi terhadap permasalahan yang terjadi dan faktor-faktor terjadinya permasalahan sehingga usaha perbaikan terfokus dengan menggunakan metode Overall Equipment Effectiveness (OEE) dan Systematic Human Error Reduction and Prediction Approach (SHERPA). Hasil penelitian didapatkan ratarata nilai OEE pada mesin stringer sebesar 65%. Dan faktor six big losses yang memengaruhi adalah reduced speed losses dengan nilai presentase sebesar 59% diikiti nilai presentase idle minor stoppage losses sebesar 18%, nilai presentase setup and adjusment losses sebesar 17%, nilai equipment failure losses sebesar 3% dan nilai deffect losses sebesar 3%. Dan usulan perbaikan dengan menggunakan metode SHERPA adalah operator harus mengutamakan keselamatan kerja dalam melakukan kegiatan, selalu memeriksa secara rutin kesiapan setiap alat dan komponen penunjang pada mesin stringer saat akan melakukan produksi, dan adanya pelatihan khusus tentang setting mesin stringer bagi staff maupun operator agar mesin dapat bekerja dengan baik dan optimal. Serta secara bersama-sama staff dan operator menjaga, memelihara dan merawat mesin stringer guna terus dapat meningkatkan efektivitas mesin dan dapat mengurangi faktor penyebab losses. Kata Kunci: Overall Equipment Effectiveness (OEE), Six Big Losses, Systematic Human Error Reduction and Prediction Approach (SHERPA), Human Error.

PT Len Industri (Persero) solar module production section is a manufacturing company that has developed the business and Solar Module products that have been installed invarious parts of Indonesia. In the manufacturing process in the manufacture of solar modules, there are problems with the machines used which have a high level of downtime, resulting in disruption of the production process. Therefore it is necessary to have an analysis of the level of effectiveness of the machine which aims to determine the performance of production and identify the problems that occur and the factors causing problems so that the improvement effort is focused using the Overall Equipment Effectiveness (OEE) method and Systematic Human Error Reduction and Prediction Approach ( SHERPA). The results obtained an average OEE value on the stringing machine by 65%. And the six big losses factors that influence are reduced speed losses with a percentage value of 59%, followed by the percentage value of idle minor stoppage losses of 18%, the percentage of setup and adjusment losses of 17%, the value of equipment failure losses of 3% and the value of the effect losses of 3%. And the proposed improvement using the SHERPA method is that the operator must prioritize work safety in carrying out activities, always checking regularly the readiness of each tool and supporting components on the stringer machine when going to production, and there is special training on setting stringer machines for staff and operators so that the machine can work properly and optimally. And together staff and operators maintain, maintain and care for the engine stringers in order to continue to improve the effectiveness of the engine and can reduce the factors causing losses. Keywords: Overall Equipment Effectiveness (OEE), Six Big Losses, Systematic Human Error Reduction and Prediction Approach (SHERPA), Human Error.

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