MTTR-Mean Time To Repair

Mean Time To Repair 

Mean time to repair (MTTR) is the average time required to troubleshoot and repair failed equipment and return it to normal operating conditions. It is a basic technical measure of the maintainability of equipment and repairable parts. Mean Time means, statistically, the average time. Mean Time To Repair is two important KPI's in plant maintenance.

Mean Time To Repair = Total down time / number of breakdowns

= (Total Failure days)/ number of breakdowns 

Maintenance

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-  Pump condition based maintenance

-  Pump predictive maintenance

-  Preventive Maintenance of pump

-  Pump maintenance

Machine Maintenance

Machine Maintenance involves keeping the machine in a healthy state. This involves proper understanding of maintenance models and their applications. Machine maintenance is about about reducing the downtime of the machine or equipment by performing every maintenance task right the first time. The reasons for machinery maintenance are:

• Most machines are designed with wear components that will have a fixed service life and will require change out at the end of the component's design life. Typically in a bush bearing the shaft is harder than the bearings to allow the replaceable bush to wear than the expensive shaft. Machinery maintenance is all about identifying such components and renewing them at the end of its run before the components fails in service, which can result in secondary damages. 
• The machines also have lubrication and cooling systems to enhance the life of the components and maintenance is to make such systems work without fail.
• The machines do handle fluids and solids and will require periodical internal check up and cleaning to make sure it continues to perform at the design level
• Machinery maintenance is all about handling all such activities in planned manner to ensure that the objectives of the production are achieved without interruption.

MTBF

Mean Time Between Failures - Th average available time ( in Hours) of an equipment between the occurred breakdowns for a particular period.

MTTR 

Mean Time To Repair/ Restore - The average time taken / spent by the Maintenance team to fix the breakdown occurred equipment for a particular period.

Mean Time Between Failure - The average amount of operating time between consecutive breakdowns for an item of equipment (or plant).