Low risk equipment may be maintained at a much lower frequency and possibly with a much smaller scope of work. Risk Based Maintenance (RBM) is when you use a risk assessment methodology to assign your scarce maintenance resources to those assets that carry the most risk in case of a failure (remembering that risk = likelihood x consequence).Īs a result, equipment that has a higher risk and a very high conseauence of failure would be subject to more frequent maintenance and inspection. In the following paragraphs, I will explore each of these types of maintenance in more detail including when you should consider using them. every 150 cycles, every 10,000hrs or like your car: service every 10,000km.Īpart from the regular interval approach (time based maintenance) there are also other types of maintenance that fall within the category of preventive maintenance: But preventive maintenance can also be based on usage e.g. every week, every month or every three months. Preventive maintenance can be time based i.e. Time Based Maintenance is basically a type of maintenance that is done at a regular interval while the equipment is still functioning with the objective of preventing failure or reducing the likelihood of failure. When people talk about preventive maintenance (or preventative maintenance) they usually refer to what is better described as Time Based Maintenance (TBM). Scheduled restoration tasks and replacement tasks are examples of preventive maintenance tasks.” Time Based Maintenance (TBM) Preventive maintenance can be defined as “an equipment maintenance strategy based on replacing, or restoring, an asset at a fixed interval regardless of its condition.

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