Maintenance is execution of all PM,PdM and corrective repair activities based on CM (condition monitoring) results as per SMP. An effective and efficient maintenance team will result in decreased MTTR which will enhance the Availability of equipment.
Reliability function is basically a function of thinker group who is responsible for developing procedures and checklist, analysing root cause failure analysis (RCFA) ,Optimizing Preventive and Predictive maintenance programme in order to optimize maintenance cost based on improved MTBF.
In my understanding Maintenance and Reliability both are complementary to each other.
As Reliability, Availability and Maintainability are components of Maintenance Effectiveness equation and Reliability is subset of Availability,we may consider Reliability is subset of Effective Maintenance System.
Availability of equipment or system refers to MTTR and defined as ratio of UP-Time /(UP-time + Down Time) assuming yearly calender hours as total of up-time and down-time.
On the other hand Reliability refers to MTBF and defined as probability that an equipment or system shall perform its intended service under given duty point or operating conditions,given environmental conditions under given time period ( In this case budgeted production hours are normally taken as given time period)
The above explanation shall be more accurate if both the business objective terms MTBF and MTTR are accurately quantified to the extent possible.
Reliability function is basically a function of thinker group who is responsible for developing procedures and checklist, analysing root cause failure analysis (RCFA) ,Optimizing Preventive and Predictive maintenance programme in order to optimize maintenance cost based on improved MTBF.
In my understanding Maintenance and Reliability both are complementary to each other.
As Reliability, Availability and Maintainability are components of Maintenance Effectiveness equation and Reliability is subset of Availability,we may consider Reliability is subset of Effective Maintenance System.
Availability of equipment or system refers to MTTR and defined as ratio of UP-Time /(UP-time + Down Time) assuming yearly calender hours as total of up-time and down-time.
On the other hand Reliability refers to MTBF and defined as probability that an equipment or system shall perform its intended service under given duty point or operating conditions,given environmental conditions under given time period ( In this case budgeted production hours are normally taken as given time period)
The above explanation shall be more accurate if both the business objective terms MTBF and MTTR are accurately quantified to the extent possible.
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