Our chemical manufacturing facility has a resident maintenance department (pipefitters, carpenters, mechanics, etc) who are trying to improve the effectiveness of their own operations. We are having difficulty identifying and quantifying their rework. The problem is partly our system definition (or lack of) of what is maintenance rework, and partly cultural- the craftsman may not recognize or agree that the work they are performing is 'rework'. Has anyone implemented a maintenance (craftsman) rework program? Thanks in advance for those that share the 'how-to' implement.