Masalah grease
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Dokumen tersebut membahas beberapa permasalahan yang terkait dengan pengetahuan dan penggunaan grease yang masih minim di industri, seperti pemahaman istilah teknis yang kurang, ketidakjelasan parameter untuk aplikasi berbeda, dan ketidaksesuaian antara kebutuhan kecil dengan ukuran kemasan yang dijual.
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Dokumen tersebut memberikan informasi mengenai sistem otomatisasi pelumasan (auto-lubrication system) pada mesin, termasuk komponen utama sistem, spesifikasi grease yang direkomendasikan, dan cara kerja sistem secara keseluruhan.
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Standar ini menetapkan persyaratan mutu gemuk pelumas untuk kendaraan bermotor. Persyaratan mutu terdiri dari spesifikasi karakteristik fisika kimia dan parameter kinerja yang diuji dengan metode standar. Gemuk pelumas dikelompokkan berdasarkan tingkat kinerja NLGI untuk chassis dan bantalan roda.
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Masalah grease
- 1. Permasalahan Grease di Industri Oleh : Dede Farhan Aulawi
- 2. Beberapa Permasalahan : Pengetahuan tentang grease yang masih minim Pemilihan & Cara Penggunaan grease yang tepat Perbandingan Kualitas Grease Parameter yang belum jelas tentang suhu, beban, kecepatan, dll Jumlah kebutuhan dan ketersediaan barang di pasar secara ekonomis
- 3. 1. Pengetahuan tentang grease yang masih minim Definisi : Pelumas yang dipadatkan dengan sabun metalik / non sabun metalik Beberapa istilah yang belum dipahami seperti Extreme Pressure, Kestabilan Mekanik, Drop point, dll Hubungan antara tingkat kekerasan (NLGI) dengan penetrasi dan penggunaan di lapangan
- 4. 2. Pemilihan & Cara Penggunaan Belum tersedianya table konversi antara seluruh produk grease dari berbagai manufacturer yang menunjukkan ekivalensi masing - masing produk tersebut Manual book dari manufacturer jarang memberi penjelasan tentang spesifikasi dari grease yang harus digunakan Jarang memperoleh informasi tentang teknik penggunaan masing - masing jenis grease yang tepat & benar
- 5. 3. Perbandingan Kualitas Grease Adalah suatu kewajaran jika setiap grease manufacturer/supplier selalu memberikan informasi bahwa produknya memiliki kualitas yang paling baik dan tepat. Respon user/planner/engineer sering mengalami kesulitan untuk mengambil keputusan teknis atas penawaran-penawaran yang ada
- 6. 4. Parameter : suhu, beban, kecepatan Parameter low / medium / high temperature applications Parameter light / moderate / heavy / very heavily loaded Parameter low / medium / high speed Parameter : slow moving but heavily loaded
- 7. 5. Jumlah kebutuhan Vs Ketersediaan barang Aktual kebutuhan penggunaan grease untuk suatu mesin relatif dalam kuantiti yang kecil/sedikit, tetapi ketersediaan kemasan yang di pasar/supplier ada dalam jumlah kemasan tertentu ( minimum order ). Hal ini memberi kesulitan dan kerugian baik bagi user maupun supplier
- 8. Contoh kasus : Suatu transmisi pada mesin CMM sering trouble/trip ketika mesin dioperasikan. Setelah proses investigasi & trouble shooting diputuskan untuk penggantian grease pada screw transmisi-nya. User melakukan uji coba dengan grese yang ada. Supplier perlu memberi sample untuk menguji produk yang ditawarkan.
- 9. Terima Kasih