Successful use of device diagnostics in asset management

What are the signs of a successful maintenance program?

02/07/2011


Dear Control Engineering: I was reading the article Device Diagnostics and Asset Management. Please explain Storey's final statement in a little more detail.

At the end of the article, Storey is offering a practical way to know if your program is successful. His comment assumes that you are using diagnostics, at least to some extent. His point is that if you sift through the diagnostic data after something has failed, your program is not working as it should. That situation is like a driver who has just hit another car in an intersection going back to see if there was a stop sign that he should have seen.

Storey's indicator of a successful program is when you can show that you avoided a problem thanks to diagnostic information. Here's an example: You have a pump in your plant and your maintenance procedure for that device says that you should replace the bearings every 2,000 hours of operation. That procedure works, but in reality bearings can often last longer than that, but at the same time, if the installer is careless, they may fail after only 1,500 hours. If you have a sensor that can diagnose the bearings' condition, you will know exactly when they are beginning to fail early enough to take appropriate measures. That way you always get the maximum life while avoiding failures under load. You will replace the bearings when they need it, not according to the calendar.

Take the survey that goes with the article and let us know where your company's maintenance program is.

Peter Welander, pwelander@cfemedia.com



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Intelligent, efficient PLC programming: Cost-saving programming languages are available now; Automation system upgrades; Help from the cloud; Improving flow control; System integration tips
Smarter machines require smarter systems; Fixing PID, part 3; Process safety; Hardware and software integration; Legalities: Integrated lean project delivery
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.
This article collection contains several articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again

(copy 5)