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Nisrina, Shafa
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Chemical Engineering, Chemistry & Bioengineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Troubleshooting Engine Overheat on Wheel Loader Liugong Type 856H Agsya, Raihan Trinanda; Nisrina, Shafa; Noval, Rahmat; Yue, Hong; Batistuta, Andrian Pratama; Santoso, Seto Aji
Recent in Engineering Science and Technology Vol. 2 No. 03 (2024): RiESTech Volume 02 No. 03 Years 2024
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v2i03.67

Abstract

The Liugong type 856H Wheel Loader unit was donated by PT. Liugong Machinery to Liuzhou Vocational and Technical College (LVTC) as part of a collaborative effort to support teaching and learning activities at LVTC. During practical use, this Wheel Loader unit experienced engine overheating. The aim of troubleshooting the engine overheating issue was to identify the root cause of the problem. This research was conducted using direct observation methods, specifically employing a 7-step troubleshooting approach. The research findings indicate that the engine overheating in the Liugong type 856H Wheel Loader unit was caused by a malfunctioning thermostat component. According to specifications, the thermostat should begin to open at a temperature of 78°C and fully open at 92°C. However, upon inspection, the thermostat did not open until the temperature reached 90°C. This prevented coolant from flowing to the radiator for cooling. As a result, the hot coolant continued to circulate within the engine, leading to engine overheating. The corrective action taken was to replace the faulty component.
Co-Authors Agsya, Raihan Trinanda Batistuta, Andrian Pratama Noval, Rahmat Santoso, Seto Aji Yue, Hong