Corrective And Preventive Maintenance

November 3, 2021

Among the services we offer at CisLab is the Corrective and Preventive Maintenance of various equipment for use in chemical and industrial laboratories, but what does this mean and what are their differences? in this blog you will know.

What is Preventive Maintenance:

Preventive maintenance is that which is carried out in advance in order to prevent the emergence of breakdowns in artifacts, electronic equipment, motor vehicles, heavy machinery, etc.

Some preventive maintenance actions are: adjustments, cleaning, analysis, lubrication, calibration, repair, part changes, among others.

In the same way, the cost is calculated through overtime, helpers’ time and labor, as well as the spare parts inventory, for example: in automobiles filter change, lubrication, etc., each spare part has a different cost.

This aims to detect failures that may lead to equipment malfunction, thus avoiding high repair costs and reducing the probability of unforeseen shutdowns, as well as allowing a longer duration of equipment and facilities and greater safety for the workers especially in the case of those employees who work in industries with large machinery.

Predictive Maintenance

It consists of predicting future equipment, automobile or machinery failures. Predictive maintenance is carried out when the machinery presents some signal, for example: noise, vibration, temperatures, among others and, by the constant monitoring of the equipment by the individual who uses it. Predictive maintenance manages to prevent possible errors that require corrective maintenance.

What is Corrective Maintenance:

Corrective maintenance is called that which is carried out in order to repair faults or defects that occur in equipment and machinery.

As such, it is the most basic form of maintenance, as it simply involves repairing what has broken down. In this sense, it is a process that basically consists of locating and correcting breakdowns or flaws that are preventing the machine from performing its function normally.

Given the simplicity of old machines and the absence of a consumer culture, like the current one, corrective maintenance was the most common way of dealing with machine failures until the 20th century.

Contingent corrective maintenance

It is one that is carried out in a forced and unforeseen manner, when a failure occurs, and that imposes the need to repair the equipment before being able to continue using it. In this sense, contingent implies that the repair is carried out as quickly as possible to avoid material and human damage, as well as economic losses.

Scheduled corrective maintenance

It is the one whose objective is to anticipate possible failures or damage that a team may present from one moment to another. In this sense, it tries to foresee, based on previous experiences, the moments in which an equipment must undergo a maintenance process to identify worn parts or possible breakdowns.

Hence, it is a type of maintenance that proceeds by making a general review that diagnoses the condition of the machinery. Likewise, this type of maintenance allows you to set in advance the time when the review is to be carried out, so that hours of inactivity or little activity can be used.

Differences between preventive and corrective maintenance

Preventive maintenance is one that focuses on ensuring the good condition of the equipment based on a work plan that prevents breakdowns from occurring. They are tasks such as changing the oil of a machine, proper cleaning or inspections of the installation.

According to experts, this is the most efficient maintenance to guarantee the good condition of the equipment at the lowest cost.

It is carried out routinely, in order to extend the useful life of the machines as much as possible. The goal is to reduce or avoid major breakdowns, which are costly and put the machine out of use for an unplanned time, affecting the performance of other assets affected by the work process flow.

Regarding corrective maintenance, in this case the task is intended to resolve a failure or breakdown that has already occurred in the equipment. It consists of repairing the machine to its initial operating condition.

This type of maintenance is the most common in companies, usually because preventive maintenance has been neglected, or because its effectiveness cannot be guaranteed 100%. When routine inspections and controls have failed to anticipate potential breakdowns, mechanical problems begin to appear.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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