Some authorities use a type of check, known as a 3c check or intermediate layover il, which typically includes light structural maintenance, including checks for corrosion, or on specific highload parts of the airframe. The set of tasks is destined to correct the defects to be found in the different equipment and that are communicated to the maintenance. These concepts are not always easy to understand or are not wellknown by certain. For instance, a manufacturing plant that has a team dedicated to maintenance technology and is owned by a billion dollar company will use predictive maintenance. Five types of maintenance are in fact recurrent in the industry. While there are a lot of different types of maintenance strategies out there, most discussions about which strategy you should implement come down to comparing reactive vs preventive vs predictive maintenance if you are or were a part of this debate, youre probably aware that the answer isnt always that obvious. Compare preventive, predictive, conditionbased, planned, scheduled, and other types of maintenance side by side. The 3c check may also be used as the opportunity for cabin upgrades, e. This maintenance is a need towards the active and passive services performed by equipment or a body. These building maintenance works with special treatments are discussed. Abb guarantees full service for the entire range of brands, including acquired products, of which it manages archives containing all technical information abb, asea, bbc, calor emag, sace, stromberg, gardy, ejf, ite, zwar, lk nes, reyrolle, westinghouse. However, planned maintenance is not considered a specific kind of maintenance.
Both are very important and will decisively influence the operation of the system. One maintenance approach may cost less than other so each professional has to see the resources and then decide for which maintenance type is best for his plant. Because so many types of maintenance exist, its hard to know which one is best for your organization. All maintenance approaches encourage the use of preventive tactics, although corrective maintenance tactics are also used. The use for which buildings are designed is the main factor in determining the required standard of maintenance. Plant maintenance and its types time and condition based. There are four types of maintenance, namely, corrective, adaptive, perfective, and preventive. Academicians have classified maintenance in two broad categories, viz. Preventive maintenance is when you proactively initiate tasks and. Read and interpret blueprints, drawings, diagrams, and.
It means that people waits until equipment fails and repair it. Types of maintenance programs that exceptional maintenance practices encompassing preventive and predictive elements can extend this period. There are basically four types of planned maintenance i. Predictive maintenance pdm definition techniques that help determine the condition of inservice equipment in order to predict when maintenance should be performed primary goal minimize disruption of normal system operations, while allowing for budgeted, scheduled repairs. There are different types of building maintenance works carried out for durable building structures. Types of maintenance compare different types of maintenance. Predictive maintenance is the complement of preventive maintenance. Time based maintenance, failure finding maintenance, risk based maintenance, condition based maintenance and predictive maintenance.
In accordance with the scope of the tasks, maintenance can be divided into the following types. When approaching the different types of it maintenance, two aspects must be considered. The maintenance includes both hardware and software of the computer. Maintenance types preventive, predictive, proactive. Three types of maintenance in the maintenance literature it is generally recognized that maintenance philosophies can be grouped into three broad categories.
Most types of maintenance fall under two main categories. Underway maintenance, carried out by maintenance staff yet not needing plant, area or a whole system stoppage. Definition and types of maintenance maintenance management. Cleaning, lubrication, replacement of worn out parts performing intense duty or due to wear and tear. The british standard 38111974 has, there, defined maintenance the combination of all technical and assorted administrative actions any action carried out to retain an item in. Horizontal and vertical types universal and ram types bed type mill planer type. Pdf organizational structure of maintenance organization. In most cases this period encompasses the normal distribution of. Different types of maintenance exist because maintenance teams within different organizations have different budgets, equipment needs, and service level agreements with customers and internal departments like production. Evaluating different maintenance management strategies. In fact, there is a big list of various maintenance techniques which is probably not known completely to everyone.
Such a thing could be used when the equipment failure does not significantly affect the operation or production or generate any signific. The marine and air transportation, offshore structures, industrial plant and facility management industries depend on maintenance, repair and overhaul mro including scheduled or preventive paint maintenance programmes to maintain and restore coatings applied to steel in environments subject to attack from erosion, corrosion and environmental pollution. There are 9 types of maintenance split between preventive maintenance and corrective maintenance. These concepts are not always easy to understand or are not wellknown by certain people, thats why they need to be cleared up. An example of this strategy is scheduling maintenance for a conveyor. Preventive maintenance is done before a failure occurs and consists of maintenance types like. The required passage may be for a road, a railway, pedestrians, a canal or a pipeline.
Publishers pdf, also known as version of record includes final page. An analysis of maintenance strategies and development of a. The various types of maintenance can work simultaneously. All facilities have some mix of the preventive and corrective tactics, and theoretically there should be a preventivetotal maintenance ratio that minimises the total maintenance cost. The pros and cons of different maintenance strategies. Its mission is to maintain a level of certain service on equipment, programming the interventions of their vulnerabilities in the most opportune time. Preventive maintenance should be used on assets that have a critical operational function, failure modes that can be prevented with regular maintenance and have a likelihood of failure that increases with time or use. Routine maintenance, generally carried out by production personnel. Preventive, predictive, corrective and shutdown maintenance.
In most cases this period encompasses the normal distribution of design life failures. Description example 1 corrective maintenance cm maintenance tasks are intentionally withheld until an asset stops working or starts failing. The wearout period is characterized by a rapid increasing failure rate with time. The set of tasks is destined to correct the defects to be found in the different equipment and that are communicated to the maintenance department by users of the same equipment. Types of maintenance breakdown maintenance preventive maintenance 1.
Building repairs and maintenance services mainly includes works undertaken for maintaining proper condition of buildings, its services and works in ordinary use. Preventive maintenance pm performed regularly, with. Preventive maintenance principles mit opencourseware. On the other hand, unplanned maintenance does not involve any. Adoption of particular maintenance type greatly depends upon the resources of organization or company.
Corrective maintenance is concerned with fixing errors that are observed when the software is in use. Identify the different types of personal safety equipment. A lot of maintenance jargon, like preventive maintenance, is commonly misused, so ill clarify and compare some of the most important terms, after a brief overview of the more central ones. Different types of maintenance are being practiced in various parts of world.
Any maintenance carried out with forethought, control and records is defined as planned maintenance. Pdf maintenance and its types engr sajid chaudhary. Types of building maintenance works for durability of. Companies smes as well as large groups know how their productivity partly depends on their industrial maintenance processes. For instance, a manufacturing plant that has a team dedicated to maintenance technology and is. We are spending more money associated with capital cost because, while waiting for the equipment to break, we are shortening the life of the equipment resulting in more. The mission of femp is to facilitate the federal governments implementation of sound, cost. Through the utilization of various nondestructive testing and measuring techniques, predictive maintenance determines equipment status before a breakdown occurs.
The good condition of the building is guaranteed by proper building maintenance. Which types of maintenance are prevalent for a given component. In reality, during the time we believe we are saving maintenance and capital cost, we are really spending more money than we would have under a different maintenance approach. Pdf copy of the article and a supporting presentation that explains the different types of maintenance and when.
However, there are numerous maintenance techniques or practices that are in vogue amongst various maintenance departments in different industries. Wear in the bores for the poppets of the valve guard can limit its lifetime. A number of different methods have been used in this master thesis, i. Evaluating different maintenance management strategies fiix.
In the maintenance literature it is generally recognized that maintenance philosophies can be grouped into three broad categories. The purpose of preventative maintenance is to prevent assets from breaking down by performing maintenance regularly instead of conducting maintenance once failure has occurred. Get to know the main types of maintenance, their applications and their advantages and disadvantages of each when compared to the alternatives. Based on an organizations budget, amount of resources, level of combined experience, and maintenance goals, one or more maintenance types are used. The basic types of maintenance falling under mro include. This job is easier than it is for the plate and ring type valves. Department of energys federal energy management program femp. Traditionally, 5 types of maintenance have been distinguished, which are differentiated by the nature of the tasks that they include. The technical meaning of maintenance involves functional checks, servicing, repairing or. Occasional treatments like whitewashing or painting at certain intervals must be carried out. With predictive devices currently available, it is incumbent upon. Preventative maintenance predominantly features two different types of maintenance.
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