For a reliability engineer or maintenance manager concerned with the strategic management of equipment performance, it’s necessary to identify the equipment that is being over maintained and under maintained with respect to proactive maintenance. Proactive maintenance includes everything from preventative work such as changing the belts on a conveyor at a regular interval to condition monitoring activities, such as vibration analysis performed at a regular frequency. In instruments such as pressure transmitters, the proactive work of verifying the transmitter’s calibration might cause instrument errors if done too frequently and might cause drift induced errors if not corrected frequently enough. The errors due to too frequent proactive work are also known as maintenance induced errors. These maintenance induced errors are applicable to other types of equipment, such as steam turbines, reciprocating compressors and centrifugal pumps.
By adopting a comparative analytic methodology, today’s data analysts can quickly identify over- and under-maintained equipment which helps industrial organizations increase asset reliability and even see improvements to their bottom line.