Before attempting to improve the process, it is vital to understand the process in detail first. Figure 7 shows the current expander machine with key components. Work methods engineering study of the setup procedure is done by video analysis of the whole procedure. Table 4 is the detailed element-wise analysis of the setup of expander. The whole setup is divided into 18 different elements (10–180). Each element is defined as external or internal element (in the present instance all the elements are internal).