<![CDATA[The issue of off center plate positioning in Axle 13 products at PT Hino Motors Manufacturing Indonesia has led to disruptions in the assembly process and reduced product quality. This study aims to analyze the root causes of the defect, design corrective actions, and evaluate the outcomes of their implementation. The method applied is the Quality Control Circle (QCC) with the Plan-Do-Check-Action (PDCA) approach. Based on the analysis, the main causes were identified as material and machine factors, namely the absence of core indentation dimensions in the technical drawings and the incompatibility of jig design with the actual core geometry. Improvements were carried out through jig design modifications, plate position verification, and the standardization of work procedures using visual methods. After the corrective actions were implemented, the number of defects decreased from a total of 24 units to zero in June. In addition, the company recorded annual production cost savings of IDR 206,352,000. These results indicate that the systematic application of QCC can significantly improve product quality and production efficiency. Keywords: Defect, Jig, PDCA, Quality Control Circle, Standardization]]>
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