Preventive maintenance

El Preventive Maintenance it is somewhat sophisticated, and involves interventions to prevent failures. In this case, they are based on the reliability of the equipment, and depending on the case, the industrial maintenance tasks will be carried out in more or less frequent periods of time.

The main objective is preserve equipment and facilities. In addition, like the predictive one, it is also usually done with the machinery running, so it does not imply reducing productivity and maintains the high availability so desired in these environments where idle time is very expensive.

Among the tasks of preventive maintenance, it goes from the simple cleaning of the equipment so that work properly, to the change of worn parts before they fail, change of lubricants, etc., depending on the recommendations of the manufacturer of the machine, or the opinion of experts. Therefore, it also prevents failures before they occur, just like the predictive one.

If you are reading this you need more information. do not miss these key topics of industrial maintenance The maintenance plan, tools CMMS and Types of maintenance.

Types of preventive maintenance

Within preventive maintenance can be distinguished various types depending on the criteria used for its application:

  • Programmed: action is scheduled and periodic reviews are carried out. It can be done depending on the operating time of a team or also determining other factors. For example, the number of cycles, mileage, number of parts produced, etc.
  • Predictive- An expert must determine when is the right time to do it based on what is known about the machine or system. For this you must know well the factors such as MTTF, MTBF, and MTTB.
  • Opportunity- Take advantage of downtime for maintenance. Like when the industry is not active, downtime, or when the impact on production is minimal.

For example, in informatics, for data centers, the servers must be 24/7, 100% availability is sought. Therefore, here the opportunity does not find its place, and what is usually done in these cases is to look for redundancy (eg: RAID), so that in case something fails, there will be another element ready that can replace it without affecting the any. Another technique would be fencing, to isolate and that a system can be replaced or repaired without affecting the rest ...

Remember that it is not the only type of maintenance there is, if you are thinking of implementing and controlling the maintenance of your company you have to study the Corrective maintenance and predictive.