RANCANG BANGUN TEST LEAK AFTER COOLER D375-6R KOMATSU

Yudi Kurniawan, Yolanda Vivina Mithaya Sumartono, Muhammad Arya David Saputra

Abstract


After cooler merupakan komponen yang berfungsi untuk mendinginkan udara pada turbocharger yang akan masuk ke ruang bakar, karena udara yang dingin akan semakin padat, dan udara yang masuk ke ruang bakar akan semakin banyak. Apabila after cooler bocor maka udara yang didingin kan akan keluar dan udara yang masuk ke ruang bakar sedikit. Kondisi dilapangan peneliti melihat ada beberapa kekurangan yang terjadi pada saat proses pemasangan after cooler D375-6R Komatsu. Karena kurangnya alat pengujian kebocoran after coller, maka dibutuhkannya special tool test leak komponen aafter cooler. Berdasarkan permasalahan yang ada peneliti merancang sebuah alat untuk melakukan pengetesan kebocoran pada after cooler D375-6R Komatsu. Metodologi penelitian ini meliputi identifikasi masalah, perancangan alat, pembuatan alat, dan pengujian alat. Penelitian ini menjelaskan bagaimana proses pembuatan special tool test leak after cooler D375- 6R Komatsu, mengetahui penggunaan alat, analisis waktu, analisis man power dan biaya dari penggunaan alat. Dari hasil pengujian didapatkan perbandingan waktu 17 menit kemudian jumlah man power yang dgunakan hanya 1 orang.


Kata kunci:  After Cooler, Test Leak, Bulldozer, Redo

 


ABSTRACT


The after cooler is a component that functions to cool the air in the turbocharger that will enter the combustion chamber, because the cold air will become denser, and more air will enter the combustion chamber. If the after cooler leaks, the cooled air will come out and little air will enter the combustion chamber. Conditions in the field, researchers saw several deficiencies that occurred during the installation process of the Komatsu D375-6R after cooler. Due to the lack of after cooler leak testing tools, a special after cooler component leak test tool is needed. Based on the existing problems, researchers designed a tool to test leaks on the Komatsu D375-6R after cooler. This research methodology includes problem identification, tool design, tool creation, and tool testing. This research explains the process of making a special leak test tool after cooler D375-6R Komatsu, knowing the use of the tool, time analysis, man power analysis and costs of using the tool. From the test results, it was found that the time comparison was 70 minutes and the number of manpower used was only 1 person.


Keywords: After Cooler, Test Leak, Bulldozer, Redo


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