Work Load Analysis of Phosphoric Acid Filling Activities Using Ovako Working Analysis System (OWAS) Method

Abstract

PT. XYZ runs a palm oil processing plant (CPO) into its derivative products with a refinery and fractionation process with a capacity of 600,000 tons per year. The technology used in the process of refinery and fractionation has been done automatically. However, the filling of auxiliary materials is still done manually, specifically in filling the auxiliary material Phosphoric Acid into the tank. This activity is carried out continuously can cause the risk of musculoskeletal disorders in workers. To ensure this, the distribution of the Nordic Body Map questionnaire was carried out to determine the complaints experienced by workers in these activities. in this case the analysis was carried out using the OWAS (Ovako Working Analysis System) method by providing output in the form of work attitudes that are at risk of occupational accidents in the musculoskeletal section. From the results of data processing, it is obtained category 3, where repairs need to be done as soon as possible / as soon as possible. For that reason the authors propose three improvements, namely the operation of TK 300, using a forklift, and designing work facilities.