Among different types of maintenance strategies that were introduced before, preventive and corrective maintenance can be called the main strategies.
Preventive maintenance actions are generally referred to those actions that are applied on the structure regularly and that try to maintain the structure from unexpected failures and keep it working. Preventive maintenance defers the degradation process, hence, it extends the time needed for corrective actions and operational capacity will be increased. In the other hand, because they are performed timely and based on a routine, therefore, less large scale repairs are required. In practice, a preventive maintenance schedule may include things such as cleaning, lubrication, oil changes, adjustments, repairs, etc.
Corrective maintenance is another strategy which will be applied on a structure when a flaw is detected. The purpose of the corrective maintenance is to restore the operational capacity of the structure to an acceptable level. according to the importance of the flaw a corrective action can be applied immediately or deferred for a certain time. There are different types of actions included in corrective maintenance and the application of each depends on the defect situation. In worst case scenario replacement of the component of structure is the final solutions.
|Maintenance strategies, RD/GD-210, 2007|
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