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Maintenance ONBOARD

 Types of Maintenance Procedures

1) Preventive or Scheduled Maintenance System

It is famously known as the PMS or Planned Maintenance System. In this type of system the maintenance is carried out as per the running hours like 4000 hrs, 8000 hrs etc., or by the calendar intervals like 6 monthly, yearly etc. of the machinery. The maintenance is carried out irrespective of the condition of the machinery. The parts have to be replaced if it is written in the schedule, even if they can be still used.

2) Corrective or Breakdown Maintenance

In this system, maintenance is carried out when the machinery breaks down. This is the reason it is known as breakdown maintenance. This is not a suitable and good method as situations may occur wherein the machinery is required in an emergency. The only advantage of this system is that the working of machinery parts is used to its full life or until it breaks. This system might get costly as during breakdown several other parts may also get damaged.

3) Condition Maintenance system

In this system, the machinery parts are checked regularly. With the help of sensors etc. the condition of the machinery is accessed regularly and the maintenance is done accordingly. This system requires experience and knowledge as wrong interpretation may damage the machinery and lead to costly repairs which may not be acceptable by the company.

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