What are the 3 main types of maintenance?

The three types of maintenance: corrective maintenance, preventive maintenance, predictive maintenance. Another is that new technologies enable new strategies.

What are the 3 main types of maintenance?

The three types of maintenance: corrective maintenance, preventive maintenance, predictive maintenance. Another is that new technologies enable new strategies. When new technology gives us new capacity, we can take advantage of it in a new strategy. For condition-based maintenance and predictive maintenance, for example, the sensors installed on your assets and equipment capture a constant stream of data that you can use to help determine when to schedule upcoming inspections and maintenance tasks.

Here, you use a program of inspections and tasks to find and fix small problems before they have a chance to turn into big problems. Preventive maintenance is basically the idea behind the old saying that “an ounce of prevention is worth more than a pound of cure”. One way to understand the benefits of preventive maintenance is to analyze all the problems that are avoided. Default maintenance consists of simply following the manufacturer's recommendations for maintenance, including when to perform inspections and maintenance.

Basically, it's the same as condition-based maintenance, except that the data is analyzed to make accurate predictions about future faults. It now has the same maintenance costs depending on the conditions, plus the additional cost of even more sophisticated software that requires even more specialized training for its staff. For assets that don't fit any of these descriptions, it probably makes more sense to use preventive maintenance. As with many other strategies, you don't have to make a difficult choice between strictly one or the other.

When an asset is newer, you can use default maintenance. Later, when you've created a maintenance and repair history, you can start adjusting the schedule to better suit your specific situation. Choosing the right maintenance strategy starts with understanding your options, benefits and drawbacks. The tendency to fail usually has a bad reputation, but for a specific asset class and equipment, it is the best option.

Use it when things are difficult or impossible to maintain, cheap to carry in inventory, easy to replace, or not essential to your operations. Preventive maintenance helps you detect problems early by scheduling inspections and tasks. It also saves you money and frustration, since you can plan everything in advance. For default maintenance, everything is basically the same as with preventive maintenance, except that you follow a schedule set by the manufacturer, not by your department.

State-based and predictive using sensors and special software to collect and analyze data from sensors installed directly on or near your assets. Depending on the conditions, the software searches for readings outside the preset parameters. For prediction, the software analyzes the data to predict future failures long before they begin to develop. In the end, there is no perfect strategy for all time.

You must choose the combination that best suits your assets, adjusting your approach as your assets age and your department collects data. While planned maintenance and scheduled maintenance seem the same, there are some essential differences between them. In a nutshell, planned maintenance details how and what work will be completed; scheduled maintenance determines who will complete the work and when it will be completed. Reactive maintenance, also known as corrective maintenance or fault maintenance; preventive maintenance, which is regular maintenance performed according to defined programs, regardless of the condition of the equipment; predictive maintenance or condition-based maintenance, which is based on constant monitoring of the operating team and predicting the occurrence of faults.

The problem is to rely on reactive maintenance of medium or high priority assets. Because preventive measures are not taken in a reactive maintenance strategy, the useful life of the equipment will end up being shorter than with one of the alternative strategies. However, we should not confuse reactive maintenance with emergency maintenance, which occurs at different stages of a breakdown. While reactive maintenance is carried out at a time when certain physical damage or disturbances in the normal operation of the equipment are noticeable (i.e.,.

A functional failure), emergency maintenance occurs after a total equipment failure, requiring urgent maintenance (and generally has higher costs). Preventive maintenance arises in contrast to reactive maintenance. Rather than waiting for the malfunction to occur, this type of maintenance aims to prevent it from occurring. Preventive maintenance is carried out on a cyclical and scheduled basis, regardless of the state of the asset and in order to avoid breakdowns and minimize the consequences of equipment failures.

The maintenance manager defines the frequency based on an estimate of the useful life of the asset and the manufacturer's recommendations. Examples of preventive maintenance actions include periodic reviews, inspections, cleaning and lubrication of parts. This type of maintenance is vital for high-priority equipment, which is necessary for the normal operation of the company. In fact, the greater the risk associated with a particular malfunction, the greater the need for preventive maintenance to increase asset life and reduce unplanned downtime.

A classic example is elevators or freight elevators; an elevator breakdown can be risky if someone is trapped; repair can take a long time and an unserviced elevator is always extremely cumbersome. Because they are not based on the actual condition of the equipment, preventive maintenance plans can sometimes be inefficient and result in unnecessary maintenance (including the replacement of parts) that costs time and money. Even considering the potential waste of preventive maintenance, these costs tend to be much lower than when repairing an asset, only when there is already a functional failure. Strategies focused on preventive maintenance represent cost savings compared to reactive maintenance.

Some estimates point to savings of between 40 and 60% per year when preventive maintenance is the goal. While there is a tendency to confuse reliability-centered maintenance (RCM) with simple preventive maintenance, they are not the same thing. In short, the goal of RCM is to increase the availability of assets. Obviously, this requires a primary focus on preventive maintenance, but not exclusively.

There are several types of maintenance that fit a reliability-focused strategy, including predictive maintenance, which we'll focus on in the following paragraphs. Therefore, although preventive maintenance and RCM overlap, they are not the same thing and should not be used synonymously. Of all the types of maintenance, this is the most recent and the one that requires the most investment in technology. The purpose of predictive maintenance is to predict when a fault is about to occur.

When certain undesirable conditions are detected, a repair is scheduled before the equipment actually malfunctions, eliminating the need for costly reactive maintenance or unnecessary preventive maintenance. Despite the high investment, predictive maintenance can represent big savings in the long term. Predictive maintenance is more effective in detecting potential faults than preventive maintenance and is more incisive in determining what actions are actually needed. Take a look at our comparative article on these two types of maintenance to better understand the differences between them.

Many sources define predictive maintenance as condition-based maintenance. Although, after all, this is a misconception and understandable, predictive maintenance also evaluates the condition of each piece of equipment; we believe that it is important to make this distinction. Condition-based maintenance focuses on well-defined analysis and parameters. For example, if after a visual inspection we detect something abnormal, we intervene.

If the power of the equipment has decreased, then there has been a clear change in the state of the device and we must carry out maintenance. However, predictive maintenance goes a little further by trying to detect faults at an even earlier stage. Unfortunately, there is no recipe that all companies can follow to obtain the best results, regardless of the type of assets they have to manage. But now that you know the advantages and disadvantages of each, you can start preparing the cocktail that is right for you.

In our opinion, the best strategy is to have a plan that incorporates the different types of maintenance, as appropriate for each type of equipment, according to its value and priority, and taking into account the investment possibilities of your company. It is well known that billions of dollars are lost every year due to unscheduled downtime and poor asset quality. In an endless battle to combat this statistic, organizations implement one of a variety of types of maintenance and often combine two or more. The definitions of maintenance types vary from industry to industry, which can make it quite confusing to differentiate between aspects such as preventive and predictive maintenance, among others.

Let's examine the most common types of maintenance used in the manufacturing and processing industries. For detailed information on types of preventive maintenance, how to design a preventive maintenance program, preventive maintenance tools, and more, see the link at the beginning of this section. While many organizations employ both predictive and preventive maintenance (76 percent use preventive and 65 percent use predictive, according to a recent survey by Reliable Plant), there are some key differences. In particular, preventive maintenance does not require the condition monitoring aspect that predictive maintenance requires.

This means that predictive maintenance uses condition-based technologies, such as infrared thermography, acoustic monitoring, vibration analysis and analysis. Another key difference is that preventive maintenance involves inspecting and maintaining assets regardless of whether the equipment needs maintenance (the maintenance program is based on a trigger). When it comes to types, techniques and costs of maintenance, the main types of maintenance can be compared with those of the human body to get an overview of the equivalent body maintenance task. The following table uses an example of an energy generating asset and compares it to the human heart.

Maintenance activators can be configured and used with various types of maintenance. Fault triggers are used with reactive maintenance or execution plans a. Predictive maintenance uses elements such as time-based triggers in the form of alerts to try to prevent a failure from occurring. Other triggers that will be discussed include triggers based on events, usage, and conditions.

Just as your car has its oil changed every 5,000 miles, any machine that performs operations with time or quantity restrictions can be configured with a usage-based trigger. The meter readings can be added to a CMMS and are used to set up alerts when the desired quantity or value is reached. Usage-based activators are a great way to keep equipment subject to irregular schedules and are most commonly used with predictive or preventive maintenance programs. Technological advances prevail above all in condition-based monitoring, in the form of proactive and predictive maintenance.

In this type of maintenance, technologies such as oil analysis, vibration analysis, thermography and motor current analysis can help determine the root causes and symptoms of faults, seek benefits such as extending machine life and early fault detection, and reducing The number and the impact. The current technological revolution in the manufacturing industry has made it possible to reduce errors and defects, optimize production and reduce labor costs. Automated sensors that can continuously monitor machinery are among the biggest improvements. Not only can they be used in various types of maintenance, but they can also generate an enormous amount of data that can be analyzed and used to improve processes.

The main difference between the two is that preventive maintenance is scheduled at regular intervals, while predictive maintenance is scheduled as needed based on asset conditions. An excellent example of predetermined maintenance is when machinery maintenance is scheduled at intervals of time according to the manufacturer's recommendations. The 6 different types are: predetermined maintenance, preventive maintenance, corrective maintenance, condition-based maintenance, predictive maintenance and reactive maintenance. To do this, a new maintenance solution is practically needed to keep assets, employees and processes organized and running smoothly.

There are different types of maintenance because maintenance teams from different organizations have different budgets, equipment needs, and service-level agreements with customers and internal departments, such as production. Because you know what work the maintenance team is going to do on a given day, you have more than enough delivery time to ensure they have the right parts and materials. Default maintenance follows an action plan created by the manufacture of the equipment, rather than a scheduled maintenance established by a maintenance team. However, as technology improves, companies can try to further optimize their maintenance operations with predictive maintenance, eliminating some of the disadvantages of preventive maintenance (such as excessive maintenance).

The 4 different types of software maintenance are: corrective software maintenance, adaptive software maintenance, perfective software maintenance and preventive software maintenance. . .

Chelsea Balzano
Chelsea Balzano

Extreme travel fan. Freelance coffee specialist. Infuriatingly humble food fan. Infuriatingly humble beer evangelist. Certified twitter ninja.

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