Planned and Condition-Monitoring (Predictive) Maintenance

Planned maintenance is a failure management strategy that restores the inherent reliability or performance of the equipment item. These tasks are best employed on equipment items suffering from age-related failure (e.g., wear-out failure characteristic). The basic principle of planned maintenance is that restoring or discarding the item at a specific time before failure is expected can best manage the probability of failure. Following this principle, the planned-maintenance tasks are performed at set intervals, regardless of whether or not a failure is impending. Restoring the item or discarding it and replacing it with a new item prevent the failure.