" work design and measurement "

Cycle Time Analysis in Worker-Machine Systems Problem 3 (Problem 2.8 in the Book) A worker is responsible for loading and unloading a production machine. The load/unload elements in the repetitive work cycle have a normal time of only 25 sec, and the machine cycle time is 2.83 min. One part is produced each cycle. Every sixth cycle, the operator must replace the tote pans of parts, which takes 2.40 min (normal time). For setting the standard time, the PFD allowance factor is 15%, and the machine allowance factor is 15%. Determine the standard time under the following alternative assumptions: (a) the irregular element is performed as an external element and (b) the irregular element is performed as an internal element. (c) Determine the corresponding standard daily production quantities (8-hour shift) for each of these time standards