Recently I came across an article entitled 'Dont waste your time and money with condition monitoring' by Mike Sondalini. Not sure about the year of publication, but it is at least 10 years old.
Most of us must have read this article, as author is well-known in our field.
Below are some points highlighted in the article,
1. Preventive maintenance provides certainty, whereas predictive maintenance means uncertainty
2. RCM is useful only when degradation rate is consistent
Author has also mentioned few points on when and where to use condition monitoring.
I have following points to discuss,
1. Old site data were presented in the article to support the arguments. Can we still say that the PdM is not cost-effective, because nowadays we have online monitoring systems.
2. Should the usage of PdM limited to critical equipment only. What about balance-of-plant machines ?
Link of the article-