Subject:Maintenance and safety engineering

You have to make similar example like this but it's value and theory are different of this example and you have to solve that example which you have to make it.

Example: PM Frequency It costs $6,000 to perform PM on a group of four machines. The cost of down time and repairs, if a machine malfunctions between PM inspections, is $8,000. How often should PM be performed to minimize the expected cost of malfunction and the cost of PM? (The machines' breakdown history is on the next slide.) 30 Example: PM Frequency Machine Breakdown History Weeks Probability That a Between PM Machine Will Malfunction 1 0.2 2 0.3 3 0.5 31