Executive Summary

Summary

I\'ve got seen from great feedback on my book The Complete Guide to Preventive and Predictive Maintenance, but the most interesting was from Sandy Dunn, a maintenance expert that lives in Australia. He completely disagreed with the second half of my definition of Preventive Maintenance. He says “You spoilt it for me by defining PM as activities to \"Extend the life of an asset\" or \"Detect that an asset has had critical wear and is about to fail\" - the second of these is, in fact, a workable definition of PdM, not PM”.
I argue that Predictive Maintenance is NOT a subset of Preventive Maintenance; it is actually a separate, independent category of maintenance-based both on common English definitions of the words Preventive and Predictive.