Types of maintenance (definitions, benefits, cost, examples), preventive maintenance, predictive maintenance, planned maintenance, condition-based maintenance. Preventive maintenance refers to resolving problems before they appear. This means that such maintenance avoids the problem. Inspecting equipment at regular intervals to check the condition of the machine and take the necessary measures is the motto of preventive 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.
The need to improve the return on enormous investment in industrial plants, particularly in power generation machinery, in recent times, requires the application of condition monitoring techniques in their maintenance. This can provide an early warning of a potential failure with the opportunity to organize avoidance strategies to minimize wasted time and unexpected costs. This can greatly improve generation and production efficiency. This article presents a methodology that is useful in preventive maintenance (PM) and predictive maintenance (PDM) when applied to the Afam thermal power plant in Rivers State of Nigeria.
This has led to a proactive approach to maintenance, since the action is triggered by an unscheduled equipment failure event. With this type of maintenance policy, the cost of maintenance is high because the equipment operates in crisis conditions, secondary drains and penalties associated with production costs. It shows a paradigm shift in knowing when things start to fail and how to prevent failure. Therefore, there are two perspectives of failure: functional faults and component failures.
The functional perspective expresses what the component does, the component's perspective shows how it deteriorates. Normally, following the instructions in the equipment manufacturer's maintenance plan, a fixed interval is scheduled and maintenance work is carried out to restore the efficiency and performance of the equipment. Unplanned corrective maintenance requires immediate attention due to some type of critical fault and must be repaired without delay, since it is directly related to cost. As the name suggests, this type of maintenance refers to predicting the probability of equipment failure and scheduling maintenance to avoid failures.
The proposed ILS will enable subject matter experts in the areas of design, manufacturing, maintenance planning, maintenance execution, procurement, support equipment and staff training. Corrective maintenance is any maintenance task that resolves a problem with an equipment and returns it to its operational state. In the condition-based maintenance (CBM) strategy, the actual condition of the asset is monitored and additional maintenance requirements are decided. 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.
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