Download 17 maintenance ppt, maintenance powerpoint. The technical committee on inspection, testing, and maintenance of waterbased protection systems notes the following errors in the 2017 edition of nfpa 25, standard for the inspection, testing, and maintenance of waterbased fire protection systems. Many companies perform timebased maintenance because they cant get far enough ahead in their programs to initiate other types of programs. The system can recognize from the unit whether it is a performancebased or timebased single cycle plan and provides the appropriate scheduling parameters. Using a fleet maintenance software like fleetio that supports usagebased preventative maintenance is a great way to ensure assets are properly maintained with minimal overhead. Cbm is a set of maintenance actions based on the realtime or near realtime assessment of equipment conditions.
Reliabilitycentered maintenance methodology and application. Implementing maintenance software comes with a price, not just for the system itself, but for training, upgrading equipment, andor extra personnel or expertise. Timebased preventive maintenance plans are used in cases where frequency of orders are required based on a time schedule calendar dates. Scheduled maintenance is based on hours by the book or fuel consumption. The paper discusses how the tbm and cbm techniques work toward maintenance decision. Why usagebased preventative maintenance is better geotab. Timebased maintenance tbm is maintenance performed on equipment based on a calendar schedule.
This routine could be labeled preventive if time based, and predictive if done only when testing. This document comes with a readymade design, so all you have to do is fill in information such as the customers name, the date, time, and the frequency of the maintenance. These plans require cycle start dates, a call horizon, and a cycle set. Preventive maintenance principles mit opencourseware. In a 24x7 manufacturing operation, it is typically better to perform the 10 hours of activities in several smaller periods of time, for instance 5 pm activities that take 2 hours each. A practical approach to reliabilitycentered maintenance. Adapting to maintenance software requires time, patience, and both human and financial capital, resources that arent always readily available. Similar to meter based plans, maintenance is triggered based on actual utilization of an asset. Pdf the influence of practical factors on the benefits of condition. Its possible to schedule proactive repairs ahead of time, as well as keep an inventory of spare parts stocked and ready for quick fixes with the gearmax solutions program. I maintenance is performed when the unit reaches age t. A free powerpoint ppt presentation displayed as a flash slide show on id.
On condition based maintenance policy sciencedirect. Maintenance engineering and management cibse guide m 2008. One issue is to implement the conditionbased maintenance cbm approach. Tbm maintenance is planned maintenance, as it must be scheduled in advance. Time based maintenance consists of periodically inspecting, servicing and cleaning equipment and replacing parts to prevent sudden failure and process problems. The concept started in the 1960s by faa on the first generation of wide body aircraft, that is, the boeing 747, dc10, and l1011. Timebased maintenance lends itself perfectly to service agreements as the scope of the tasks and their intervals are clearly defined and can be appended to the agreement or referenced to applicable standards. The goal of a cbm implementation is to move from a calendarbased preventive maintenance program.
I hope you will find this handbook both stimulating and informative as you work to develop and implement rcmbased preventive maintenance programs in navy ships. Rcm acknowledges that at best, maintenance can only sustain the system to its inherent level of reliability within the operating context. The mission of femp is to facilitate the federal governments implementation of sound, cost. This strategy continues to be the preferred choice to manage the risk of equipment failure when other. Make sure that the equipment of your customer is kept in a satisfactory operating condition by making use of our preventive maintenance schedule template. Predictive maintenance and conditionbased monitoring. An overview of timebased and conditionbased maintenance industrial application. Ricky worked for alcoa mt holly which was one of three plants in the world ever certified as world class maintenance. Future occurrences forecasted based on average usage. The goal of a cbm implementation is to move from a calendar based preventive maintenance program. However, further timebased maintenance research on cbm must be carried out in order to make it more realistic for making maintenance decisions.
Maintenance policies i timebased maintenance tbm i easy to implement, no condition monitoring needed. Sep 30, 2018 after applying the time based maintenance for some time, identify the mean time between failure for each component. Maintenance scheduling for mechanical equipment bureau of. This means that it can be used with both predictive maintenance and preventative maintenance. Preventive and predictive maintenance life cycle engineering. Time based maintenance continuously improving manufacturing. Maintenance is performed in specific cycles for time based maintenance planning, for example, every two months or every six months. Download this attorney timesheet template that has been designed to track attorneys time and billable hours spent on any case heshe is handling. At that time, most maintenance involved replacing components based on the number of hours flown. Department of energys federal energy management program femp.
This handbook introduces reliabilitycentered maintenance rcm, a process designed to help us achieve both of these objectives. Failure prediction is a major topic in predictive maintenance in many industries. An introduction to usagebased preventative maintenance fleetio. Duration and variability in preventive maintenance are key. What mrs nowlan and heap found was many types of failures could not be prevented no matter how intensive the maintenance activities. At least for the few i have gone through, the stuff looks quite impressive and in my opinion the materials have more value that the price paid. Maintenance, and has beco me the report upon which all subsequent reliability centered maintenance approaches have been based. An analysis of maintenance strategies and development of a. Aircraft maintenance an overview sciencedirect topics.
Request pdf on aug 1, 2012, rosmaini ahmad and others published an overview of timebased and conditionbased maintenance industrial application. An overview of time based and condition based maintenance industrial application. The technical committee on inspection, testing, and maintenance of water based protection systems notes the following errors in the 2017 edition of nfpa 25, standard for the inspection, testing, and maintenance of water based fire protection systems. Time based maintenance tbm is maintenance performed on equipment based on a calendar schedule. In modern preventive maintenance, timebased management is still the mainstream approach. Then, based upon this factual information foundation, reliability engineering begins. With predictive devices currently available, it is incumbent upon. Rcm is a continuous process that requires sustainment. Predictive maintenance will also help you gather more insight on your machines performance and potential issues that may arise if not prevented. It consists of a series of elementary tasks data collections, visual inspections, cleaning, lubrication, retightening screws, for which no extensive training is necessary, but perhaps only a brief training. Condition based maintenance as a strategy therefore looks for physical evidence that. Standard for the inspection, testing, and maintenance of. You can use performancebased maintenance planning, for example, to ensure for the maintenance call object, maintenance order pm order, that the operations contained in the maintenance task list are performed at a time when the technical object actually requires maintenance. Effectiveness of condition based maintenance in army aviation, by maj marc p.
Rcm uses design, operations, maintenance, logistics, and cost data, to improve operating capability, design and maintenance. Build preventive maintenance scheduler assess potential losses find frequency of failure determine optimal maintenance policy assist in data formation and collection fortran program quang nguyen sample plant. I hope you will find this handbook both stimulating and informative as you work to develop and implement rcm based preventive maintenance programs in navy ships. Success of the preventivepredictive maintenance program is dependent upon the existence of the other three elements. This paper presents an overview of two maintenance techniques widely discussed in the literature.
Maintenance policies i time based maintenance tbm i easy to implement, no condition monitoring needed. Many companies perform time based maintenance because they cant get far enough ahead in their programs to initiate other types of programs. In the late 1960s, with the introduction of the boeing 747, the airline industry needed to reevaluate its maintenance philosophy. By combining these technological advances with the existing systems for vibration analysis, we have developed a. Although treated as separate elements, preventivepredictive maintenance, reliability engineering, equipment history and functional pride and quality assurance are inextricably supportiveeach to the others.
A comparison of timebased maintenance and condition. To represent simple maintenance cycles, you can create a single cycle plan. Technology has significantly enhanced our ability to detect and monitor the health and condition of critical components in army aviation. Periodic maintenance time based maintenance consists of periodically inspecting, servicing and cleaning equipment and replacing parts to prevent sudden failure and process problems predictive maintenance this is a method in which the service life of important part is predicted based on inspection or diagnosis, in order to use the. After applying the time based maintenance for some time, identify the mean time between failure for each component.
Time based maintenance lends itself perfectly to service agreements as the scope of the tasks and their intervals are clearly defined and can be appended to the agreement or referenced to applicable standards. Timebased maintenance how is timebased maintenance. Pdf improved timebased maintenance in aeronautics with. You can use performance based maintenance planning, for example, to ensure for the maintenance call object, maintenance order pm order, that the operations contained in the maintenance task list are performed at a time when the technical object actually requires maintenance. Aug 06, 2017 the project objective is to enhance the maintenance operations and planning of time based preventive maintenance by applying data science techniques and machine learning algorithms for predicting more accurate maintenance requirements. Rcm is not complicated, but requires groundwork and the understanding that it is an ongoing process, not a onetime project. Download blank timesheet templates excel pdf rtf word. A comparison of timebased maintenance and conditionbased. Through the utilization of various nondestructive testing and measuring techniques, predictive maintenance determines equipment status before a breakdown occurs. An analysis of maintenance strategies and development of a model for strategy formulation a case study master of science thesis in the master degree programme, production engineering gustav fredriksson hanna larsson department of product and production development division of production systems chalmers university of technology. Plus, it gives you forecasting capabilities to plan and budget for future maintenance. Time based preventive maintenance plans are used in cases where frequency of orders are required based on a time schedule calendar dates. At that time, most maintenance involved replacing components based on.
Chapter 5 types of maintenance programs us department of energy. Timebased maintenance financial definition of timebased. This document is based on the best knowledge available at the time of publication. You can create the maintenance plan for the calibration inspection with a maintenance strategy. If it doesnt, and, based on your accurate observation, it is in a sound present state, you can skip your maintenance and have one administered at a later time. Thanks once again to have taken time to research, develop and prepare these wonderful worldclass training materials. Often, fleet managers wait for the component to fail. Maintenance best practices world class maintenance. Such errors can happen when the exponential pdf is applied together with preventive maintenance or. The paper discusses how the tbm and cbm techniques work toward maintenance decision making. Measurements that detect the onset of system degradation lower functional state, thereby allowing causal stressors to be eliminated or controlled prior to any signiicant. An introduction to total productive maintenance tpm.
In modern preventive maintenance, time based management is still the mainstream approach. This means that time is the maintenance trigger for this type of maintenance. Typical maintenance is based on a schedule, navarro says. Implementing conditionbased maintenance using realtime pi. Chapter 5 types of maintenance programs us department. An overview of timebased and conditionbased maintenance. An overview of timebased and conditionbased maintenance in. Timebased maintenance tbm forms an underlying principle that applies to all four maintenance strategies. Before the application of msg logic, hard time ht principal was in use, which based maintenance for the aircraft on the theory of preventive, yet expensive, replacement or restoration of components 6. This workshop was designed based on ricky smiths over 30 years experience in maintenance and reliability working with hundreds of companies in north american and worldwide. If you are investing in pm program, its important to get it right the first time. The project objective is to enhance the maintenance operations and planning of timebased preventive maintenance by applying data science techniques and machine learning algorithms for predicting more accurate maintenance requirements. The form is easy to record keep with and adobe pdf.
To identify the mtbf for a component you will need to identify how many times the component has been changed either due to breakdown or preventive maintenance. 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. Mileages are expressed in terms of kilometers, miles and time for your convenience. Applying of the reliabilitycentered maintenance methodology showed that the main time between failures for the plant equipments and the probability of sudden equipment failures are decreased. Implementing conditionbased maintenance using realtime.
Pdf an overview of timebased and conditionbased maintenance. Rcm is not complicated, but requires groundwork and the understanding that it is an ongoing process, not a one time project. Conditionbased monitoring, on the other hand, allows you to catch impending failures early. Predictive maintenance is the complement of preventive maintenance. Time based maintenance tbm forms an underlying principle that applies to all four maintenance strategies. Production strategies such as just intime and lean production demand high availability of production equipment in order to meet customer satisfaction. Preventive maintenance an overview sciencedirect topics. Usage based maintenance ubm is a form of predictive maintenance pdm. Gearbox maintenance tips rapid repair solutionsconclusion brad foote gearing offers comprehensive solutions to keep your rebuilt gearbox humming along.
1068 833 1257 1141 1374 308 1428 330 1297 1170 35 198 566 1018 1279 1267 563 1165 756 346 1643 611 718 258 1241 690 147 1213 496 900 454