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Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,Maintenance and Reliability,Ross L.Fink,Maintenance,All activities involved in keeping a systems equipment in working order,Reliability,The probability that a machine part or product will function properly for a specified time under stated conditions,System Reliability-Components in Series,Average Reliability of all Components(Percent),Reliability of the System(Percent),100,80,60,40,20,0,100 99 98 97 96,n=1,n=10,n=50,n=100,n=200,n=300,n=400,System Reliability,R,s,=R,1,*R,2,*R,3,*,R,n,Where,R,s,=System reliability,R,i,=reliability of component i,Reliability Tactics,improving individual components,providing redundancy,Redundancy,The use of components in parallel to raise reliabilities,Example,what is the effective reliability of two components used in parallel with reliability of.90?,=.90+(1-.90)*.90)=.99,Mean Time Between Failures(MTBF),FR(N)=number of failures during a period of time,MTBF=1/FR(N),Maintenance,Preventive Maintenance,A plan that involves routine inspections,servicing,and keeping facilities in good repair to prevent failure,Breakdown Maintenance,Remedial maintenance that occurs when equipment fails and must be repaired on an emergency or priority basis,Total Productive Maintenance,TQM applied to Maintenance,Components,Predictive maintenance,Cleaning the machines,Creating standards on the equipment for cleaning,lubrication,and daily checks,Collecting data on downtime,Creating equipment improvement teams,Creating TPM area coordinators,
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