PT.TMI is a company engaged in the field of automotive that has implemented Total Productive Maintenance to improve efficiency and effectiveness of manufacturing companies as a whole.But it turns out that targets that are not achieved still often occur due to engine trouble.This study aims to determine the maintenance system of Press 2A machine that has a high rate of decline in speed.This study begins by measuring the achievement of Overall Equipment Effectiveness (OEE) value by first calculating the Availability, Performance Rate and Rate of Quality, then identifying the Six Big Losses that occur.The results showed that the average value of OEE on 2A Stamping machine is 70%, the effectiveness value is moderate and still below the standard of OEE value for world class company that is 85%.While the factor of Six Big Losses most influential on the low effectiveness of Press 2A machine is Reduced Speed Loss with total loss for a year of 56.411 minutes or 53% of all losses.
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