It has been proved beyond any doubt that a well-chosen and
intelligently implemented,
Preventive Maintenance System can make more economic sense.
This is because preventive maintenance is doing the minimal routine work necessary
to ensure the equipment remains in proper operating condition.

Before discussing anything further on Preventive Maintenance System (PMS),
it is necessary to understand how important is PMS. Preventive maintenance is planned maintenance of plant
and equipment that is designed to improve equipment life and avoid any unplanned maintenance activity.
Preventive Maintenance includes lubrication, cleaning, adjusting,
painting and minor component replacement to extend the life of equipment and facilities.
Its purpose is to stall breakdowns and excessive depreciation.
Neither equipment nor facilities should be allowed to go to the breaking point,
especially in industries like Oil and Gas,
where a brief disruption of work could mean not only a huge financial loss in downtime
but it will jeopardize the safety of people working there.