Production processes that are running will always be controlled by the supervisor, the supervisor in question in terms of input and output production. Member settings, engine optimization, material treatment, implementation of 5s in the production area, the implementation of appropriate work procedures, and implementation of lean manufacturing and lean sigma which has been taught by a team of six sigma. Implementation of lean sigma and lean manufacturing that has the purpose of improving productivity and quality, had to be done by all parties in the company without exception. But there was one more section that plays a role in surveillance, research and continuous quality improvement. Common across the firm, section or department responsible for the quality, the QC (Quality Control) and QA (Quality Assurance).