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Hierarchy of Maintenance

Hierarchy of Maintenance is a system of maintenance operations that organizes maintenance activities into a series of levels, from the most basic to the most complex. The hierarchy of maintenance is typically divided into four levels: preventive, corrective, predictive, and proactive. Preventive maintenance involves regularly scheduled inspections and maintenance activities to prevent equipment failure. Corrective maintenance is used to repair equipment that has already failed. Predictive maintenance uses data and analytics to anticipate and prevent potential equipment failures. Proactive maintenance is an approach to maintenance that focuses on improving the overall equipment effectiveness.