GMS 401 Chapter 3: Maintenance and Reliability

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Companies such as walt disney or frito-lay know the importance of good maintenance because lack thereof can result in dollars and time lost. There is an interdependence between operators, machines, and mechanic. Good (cid:373)ai(cid:374)te(cid:374)a(cid:374)(cid:272)e a(cid:374)d (cid:396)elia(cid:271)ility (cid:373)a(cid:374)age(cid:373)e(cid:374)t e(cid:374)ha(cid:374)(cid:272)es a fi(cid:396)(cid:373)"s pe(cid:396)fo(cid:396)(cid:373)a(cid:374)(cid:272)e a(cid:374)d p(cid:396)ote(cid:272)ts its investment. The objective of maintenance and reliability is to maintain the capability of the system. Maintenance i(cid:374)(cid:272)ludes all a(cid:272)ti(cid:448)ities i(cid:374)(cid:448)ol(cid:448)ed i(cid:374) keepi(cid:374)g a syste(cid:373)"s e(cid:395)uip(cid:373)e(cid:374)t i(cid:374) (cid:449)o(cid:396)ki(cid:374)g o(cid:396)de(cid:396). Reliability is the profitability that a machine part or product will function properly for a specified time under stated conditions. There are four different tactics for improving reliability and maintenance. Systems are composed of a series of individual interrelated components and if one fails the whole system can fail. Improving individual components: understanding occurrence of failures is important. As the number of components in a series increases, the reliability of the whole system declines quickly: to measure reliability in a system is:

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