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All Journal Jurnal Teknik Mesin
Julian Muhammad Zaky
Universitas Sulta Ageng Tirtayasa
Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Studi Kasus Inspeksi 4000 Jam pada Mesin Instrument Air Compressor (IAC) Atlas Copco ZR 75 Unit 2 di PT PLN Indonesia Power UBP Suralaya Julian Muhammad Zaky; Hamid Abdillah; Rakhmawan Rakhmawan
JTM : JURNAL TEKNIK MESIN Vol 1 No 2 (2025)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/9245b115

Abstract

Periodic inspection of the Instrument Air Compressor (IAC) plays a crucial role in ensuring the smooth operation of power plants. This study evaluates the results of a 4,000-hour inspection of the Atlas Copco ZR 75 unit at PT PLN Indonesia Power UBP Suralaya. The methods used include visual inspection, process parameter monitoring (pressure, temperature, and flow), vibration analysis, and lubricant condition assessment. The findings indicate a decrease in volumetric efficiency due to increased differential pressure across the filters, bearing wear indications, and oil contamination exceeding the manufacturer’s threshold. The main recommendations are to replace filtration elements, clean the intake line, and inspect the bearings. The integration of periodic inspection with condition monitoring has proven effective in improving maintenance performance and minimizing downtime risk.
Co-Authors Hamid Abdillah Rakhmawan Rakhmawan