Difference between preventive and corrective maintenance

Preventive: reduces overall maintenance costs

corrective: preformed after a malfunction

Explanation:

Preventive maintenance, when well planned, can reduce overall maintenance costs and increase the productivity of equipment and installations in a comprehensive manner. As many will know, corrective maintenance is usually performed after a malfunction or failure occurs in the equipment.

Preventive maintenance, when well planned, can comprehensively reduce the overall maintenance costs and increase the productivity of equipment and facilities.

As many will know, corrective maintenance is usually performed after the occurrence of a malfunction or failure in a equipment.

Explanation:

Corrective maintenance:

Corrective maintenance is carried out after fault recognition with the intention of returning an item to a state in which it can perform a required function. Maintenance interventions include emergency repairs, as well as unscheduled repairs based on inspection or customer complaints.

It has been estimated that corrective maintenance can cost three times more than the same repairs done under a preventative maintenance regime.

Preventative maintenance

Preventative Maintenance comprises the replacement of components or overhauling of assets at a fixed interval. The aim is to avoid expensive repair and corrective activities resulting from premature equipment damage or failure, and that lead to unscheduled downtime.

In most cases, this approach takes the form of time-driven tasks performed to maintain a level of availability and reliability, but it may also be triggered by monitoring conditions.

Interval-based preventative maintenance is carried out in accordance with an established time schedule or number of units of use and can be guided by supplier manuals or experience.

Condition-based preventative maintenance involves inspection of assets. Testing and parameter monitoring can be applied to determine maintenance needs and requirements.

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