The basic maintenance activities such as highlighted under autonomous
maintenance were performed by the operators and planned maintenance
activities were carried out by technicians and engineers. The problems were
rectified and managed to eliminate rework and reduced reject rates. This also
increased the quality of products produced. Table 3 summarises the quality
status for the year of 2004-2006. On the other hand, Figure 3 shows
Maintenance cost ratio to production cost for the year of 2003-2006.