ANALISIS PERANCANGAN POSISI VALVE PADA PENAMBAHAN JALUR RAW WATER DENGAN MENGGUNAKAN METODE REBA DAN ANTROPOMETRI

Abstract

Each pump that is installed has a piping system that functions as a place for liquid or fluid to flow. Each series of pipes has a valve as a tool to regulate flow and is often operated manually without the use of any tools, so it is necessary to design valve positions according to body posture to prevent Occupational Diseases (PAK). Currently, PT ARN has a pump with a valve position that is below so that the operator has to bend down when operating the valve. The position of the valve on the pump has the potential for occupational diseases because only 3 operators can open and close the valve. This study aims to design a new raw water line valve position design that is ergonomic and reduces fatigue and the risk of injury at work. The method used to analyze body posture is the Rapid Entire Body Assessment (REBA). This research was carried out by taking photos of workers' body positions when the valve opening and closing activities took place. The anthropometric data used to design the work aids needed is the data of all people working in the reagent mixing area, namely as many as 5 people. The Rapid Entire Body Assessment (REBA) score for the initial valve position work posture obtained a score of 11, with a high level or high level this work position has a high risk of injury to the muscles and the need for a change in work position as soon as possible or right away. Improvement of work posture by making a new valve position for the raw water line, and assessing the working posture of the worker when opening and closing the valve for the new raw water line, the final result is a REBA score of 3 with a low level indicating a very good position and does not cause injury to the muscles. There is a decrease in the REBA score by 8 points from the valve position on the old raw water line.