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| Maintenance World |
Maintenance world is an article source for maintenance management
and equipment reliability professionals. The topics covered
are meant to include most concerns of maintenance management:
preventive maintenance ,
planning and scheduling ,
Root Cause Analysis (RCA), CMMS ,
maintenance engineering,
equipment knowledge,
and the operations
and maintenance partnership. Maintenance management,
Preventive Maintenance, and planning and scheduling, are the
most popular topics, but you will find much detailed technical
information in our equipment knowledge and Root Cause Analysis
Sections. Each section contains suggested reliability and maintenance
books, training and seminars. Maintenance training and maintenance
seminars can also be found in the Events section. Maintenance
management jobs and special reliability events are occasionally
posted on the home page in between the articles.
The maintenance world home page is often updated with new maintenance
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reliability and maintenance training events, or interesting CMMS
software.
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world, please contact us via e-mail.
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| Featured Articles |
The Lubrication Requirements of Couplings
noria.com
Posted 5-14-2013
In an ideal world, multiple components could be produced in a single piece, or coupled and installed in perfect alignment. However, in the real world, separate components must be brought together and connected onsite. Couplings are required to transmit rotational forces (torque) between two lengths of shaft, and despite the most rigorous attempts, alignment is never perfect. More > |
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Early bearing failure detection
from reliableplant.com
Posted 4-22-2013
Bearing failure is one of the foremost causes of breakdowns in rotating machinery and such failure can be catastrophic, resulting in costly downtime. One of the key issues in bearing prognostics is to detect the defect at its incipient stage and alert the operator before it develops into a catastrophic failure. More > |
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Centrifugal Pump Troubleshooting
www.mcnallyinstitute.com
Posted 3-26-2013
You have four opportunities to trouble shoot centrifugal pumps and each opportunity can offer you a clue as to what is wrong with the pump. Let's take a look at each of these conditions More > |
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What is the True Downtime Cost (TDC)?
by Don Fitchett
Posted 3-13-2013
The key to realizing greater savings from more informed management decisions is to predetermine the "True" cost of downtime for each profit center category. TDC is a methodology of analyzing all cost factors associated with downtime, and using this information for cost justification and day to day management decisions. Most likely, this data is already being collected in your facility, and need only be consolidated and organized according to the TDC guidelines. More > |
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Mobile CMMS: The Future Maintenance Team's BFF
by Ashley Halligan
Posted 3-4-2013
Maintenance management is an around-the-clock challenge. Equipment failure can (and does) happen at inconvenient times–times when maintenance managers may be off-site and must rely on communication from technicians to convey problems and act efficiently. More > |
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Keys for Effective Troubleshooting
by Warren Rhude
Posted 2-19-2013
Equipment can malfunction for a variety of reasons. Mechanical contacts and parts can wear out; wires can overheat and burn open or short out; parts can be damaged by impact or abrasion; etc. Equipment may operate in a manner far different than it was designed to, or not at all. More > |
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Maintenance Management as a Quality Process
by Jeffrey Lewis
Posted 1-23-2013
Maintenance practices and technologies have evolved to meet the needs of the changing industrial environment. The function has evolved from a community of reactive fixers, to dedicated craftsmen, to proactive professionals. The next generation of personnel could well be based on practitioners of Quality Management Systems (QMS). More > |
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Energy Waste You Didn't Know About (Do You Care?)
by Frank Healy
Posted 1-2-2013
What you haven’t been able to see before now, probably has been biting you in a big way.
How things have changed. Seven years ago, most facilities still viewed their monthly electrical utility bill as a standard cost of doing business. When oil topped $100/barrel, however, attitudes changed practically overnight, generating a surge of interest in energy-conscious retrofits that previously would not have been cost-efficient. Yet, when the energy costs came down, attitudes and practices did not entirely revert. The United States was still trying hard to shake a recession. Global competition for providing products and services had grown even more intense. American facilities had found a potential new source of margin and profitability in the form of their monthly energy bill—and they weren’t giving it up. More > |
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Planned Work Predominance: Contribution To The Bottom Line
by Mile Shekhtman
Posted 12-14-2012
The method presented here can help bring some much-needed clarity to your objectives.
It’s common knowledge that increasing the share of planned maintenance over the time spent on breakdowns should be a top priority for forward-thinking maintenance organizations. The financial benefits of that strategy, however, may not be readily apparent. More > |
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Planning for profits
by Brian Parsons
Posted 10-28-2011
"He who every morning plans the transaction of the day and follows out that plan, carries a thread that will guide him through the maze of the most busy life. But where no plans are laid, where the disposal of time is surrendered merely to chance of incidence, chaos will soon reign": Victor Hugo (1802 -1885). More > |
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Belt Failures Tear Up Profits
by Dr Dariusz Mazurkiewicz
Posted 9-29-2011
One of the more common problems associated with conveyor belt trans- port in mining applications con- cerns the necessity of reducing energy consumption and enhancing the durabil- ity of the belts themselves.
Of particular importance are the strength and durability of conveyor belt joints, since, due to some unavoidable fac- tors such as manufacturing errors, they continue to be major problems that belt conveyor users have to deal with. More >
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Nine lubrication systems that keep chains up and running
by Mike Deckert
Posted 8-9-2011
There are several leading factors that contribute to accelerated chain wear, including incorrect chain selection and installation, inadequate chain tension, environmental exposure and, of course, improper lubrication. In fact, according to chain manufacturers, 70 percent of all failures are a direct result of some form of improper lubrication. More > |
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Dominion Solves Mt. Storm’s Fuel-Handling Problems with Improved Coal Silo Design
By Jayant Khambekar, Roger Barnum, and Keith Geisel
Posted 6-27-2011
Many coal-fired power stations built before 1980 were constructed using bins, bunkers, and silos designed for relatively easy-handling lump coal. Trends toward using lower-cost fuel and added preparation steps have resulted in harder-to-handle coal and a greater potential for silo flow problems. Coal in portions of these storage systems can remain unrecoverable, leading to a loss of capacity and a stoppage of flow or, in the extreme, to spontaneous combustion and bunker fires. more > |
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| Project Planning: Repowering or Replacement: What Is the Solution?
by James Youmans, Executive Consultant; William Frazier, Executive Consultant; Richard Grieve, Senior Consultant; and Thomas Vivenzio, Executive Consultant
Posted 5-18-2011
Between 1998 and 2002 the U.S. experienced an unprecedented power plant construction boom that consisted mostly of gas-fired, combustion turbine – based power plants. This surge in power plant construction had several driving forces, including electric power deregulation, the emergence of non-utility power producers, a sustained period of plentiful and inexpensive natural gas, and the availability of efficient and cost-competitive combustion turbine technology. more > |
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The shortest distance between two points is a straight line
by Christer Idhammar
Posted 5-4-2011
Any improvement initiative within reliability and maintenance is a journey towards a state of continuous improvement. You will never reach a final destination. You might state that your goal is 95% planned and scheduled maintenance and 96% reliability.more > |
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7 costly causes of nozzle wear by Jon Barber Posted 3-21-2011
Maybe you’re thinking to yourself that the waste and inefficiency caused by using worn spray nozzles just can’t be all that significant. If so, it’s time to change your thinking and determine if nozzle wear is a problem in your operations. Like many other processors, you may discover that you are wasting millions of gallons of water, thousands of gallons of chemicals and incurring many other unnecessary costs due to using worn nozzles. more > |
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The Role of Fireside Corrosion on Boiler Tube Failures, Part II
By Dr. Rama S. Koripelli, Dr. David C. Crowe, Dr. David N. French, and Jonathan Brand
Posted 3-21-2011
One of the primary challenges of reliably burning coal is managing the corrosion experienced by the furnace heat transfer surfaces. Fireside corrosion remains a leading cause of failure in superheater and reheater tubes. Tubes affected by fireside corrosion also may lose 15 mils per year (mpy), or more in extreme cases. In Part I of this two-part report, three case studies examined the different failure modes experienced by tubes located throughout the furnace. We conclude with two additional case studies.more > |
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Mentoring
by Joy Finnegan
Posted 3-3-2011
Was anyone else forced to read the Greek myths or Homer’s "Odyssey" in high school? I was. At the time, I thought of them as pure drudgery. Even the dreaded Shakespeare was better than these ancient and obscure stories. But, as I have grown older, I have come to appreciate the allegorical nature of the stories and their meanings.more > |
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Six ways outsourced maintenance saves
by Ron Hoffman
Posted 3-3-2011
With today's limited internal resources, it's tough to transform machine maintenance from reactionary to preventive, and ultimately proactive, despite the obvious upsides in higher overall equipment efficiency (OEE), better process control and lower total cost. Outsourcing this requirement to a third-party specialist, however, is a cost-effective alternative, according to companies that have crunched the numbers. more > |
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CSA launches first confined-spaces standard in Canada
from Pem-mag.com
Posted 2-8-2011
CSA Standards has recently released its new CSA Z1006 Management of Work in Confined Spaces standard, which specifies requirements and guidelines for work in confined spaces as well as co-ordinating rescues — an issue that affects maintenance professionals working around tight spaces, including tunnels, shipping compartments, pump stations, boilers and chemical tanks.more> |
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| Comparing the Value of Single- and Double-Layer Insulation on Boiler Walls
By Gary J. Bases
Posted 2-8-2011
The National Energy Technology Laboratory (NETL) reported in its January 2010 Tracking New Coal-Fired Power Plants report (PDF) that a total of 22 coal-fired units are under construction in the U.S., down from 28 a year ago. Another eight projects have gathered their permits but have yet to put a shovel in the ground. More > |
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BSA partners with ABMA to stop counterfeit bearings
from PEM
Posted 2-2-2011
The Bearing Specialists Association's board of directors has approved a motion embracing an anti-counterfeiting distributor partnership proposal from the American Bearing Manufacturers Association (ABMA). Counterfeiting represents a US$600-billion-a-year problem, costing U.S. businesses US$200 to US$250 billion annually. |
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| Anatomy of a Boiler Failure—A Different Perspective
By Gary J. Bases
Posted 2-2-2011
The power industry’s operating and maintenance practices were held up to intense regulator and public scrutiny when on November 6, 2007, a Massachusetts power plant’s steam-generating boiler exploded and three men died. |
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Safety DVD: One Will Die:
The John Martin StoryThis 20 minute DVD is a powerful resource and brings a true story to life in an unforgettable illustration of the injuries and life-changing consequences that resulted from John Martin’s unsafe work practices and poor safety attitude. This video will demonstrate how the choices we make each day can impact ourselves, our families and our coworkers. A great training resource! more US$495 |
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