PT. XYZ is engaged in the zipper making industry, the company will identify factors affecting machine effectiveness and analysis of maintenance activities for input materials in Total productive maintenance (TPM) implementation. This study aims to measure the effectiveness of the total equipment of the production process, especially on the old Y-Bar Press machine, determine the factors causing the low Overall Equipment Effectiveness (OEE) value and identify the losses / losses, suggest the improvement of TPM implementation. The Overall Equipment Effectiveness (OEE) value of Press Machine Y-Bar for April-May 2018 between 32.95% – 76.08% is still below the Overall Equipment Effectiveness (OEE) rating standard with low performance ratio of 32.95% – 76.08%. Companies can know the effectiveness of older machines by calculating the effectiveness level of equipment using Total Productive Maintenance (TPM) based on Overall Equipment Effectiveness (OEE) value, so as to increase equipment effectiveness and eliminate big losses for companies known as Six Big losses.

Keywords : Maintenance, Total Productive Maintenance, Equipment Effectiveness (OEE), Six Big Losses.