Why Condition Monitoring?
Preventive maintenance (PM), also known as planned or scheduled maintenance, is the most commonly used maintenance strategy in most industries today.
When using PM you assume that the lifetime of your machines are known, and that you will perform overhauls in time, so that the machines will not fail.
This is how you assume that the lifetime of your machines will be:
The truth is, machines fail randomly for many different reasons. Studies shows that only 11% of our machines fail due to age and 89% fail randomly, with infant mortality as the biggest source. How can you plan or schedule for random problems? Do you know how many of your machines which actually were overhauled at a correct time? Do you have any breakdowns?
Predictive Maintenance (PdM), also known as Condition Based Maintenance (CBM) uses different Condition Monitoring (CM) techniques to help us predict the machine condition. The instrument and techniques we have today, helps us to detect machine problems i.e. bearing faults, gear wear etc. at a very early stage so we can plan to do maintenance when it fits into our production plan.
Benefits of implementing Condition Based Maintenance as your maintenance strategy
Machines running in good condition will not be touched. Machines with developing problems will have higher maintenance focus and should be overhauled before a breakdown. This will result in a higher reliability of your machines which gives you higher availability (uptime), and on top of that in most cases also reduce your maintenance cost.
CBM or PdM is becoming a more and more popular maintenance strategy in the industry, with huge benefits when implemented correctly. Classification companies like DNV, ABS, GL etc. and also insurance companies, all wants the industry to implement and use more PdM, as they see the big benefit.
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