The Big Interview

Alan France, Operations Director of Idhammar Systems, discusses his experiences at MAINTEC as well as the benefits of integrated OEE and Maintenance systems which can help to improve efficiency and real time communications between operators and maintenance staff in the production process.

Read more...

Jon Barrett of EMS chats to Mike Herring of Whitelegg Machines, on the aspects of conventional insulation testing of electric motors and how the trusted Meg-ohm test has some major limitations in what it can find.
 
JB: Mike, what are the traditional methods for testing the insulation systems of electric motors?
 
MH: The majority of companies use a low resistance ohm-meter and a DC meg-ohm test.
 
The ohm-meter is used to check for balance between the three phase windings, and can locate loose connections open circuits and dead shorts. The meg-ohm test is used for checking the insulation resistance to earth by applying typically 500 volts DC to the winding (for a 415volt AC motor) and noting the leakage current and the meg-ohm or gig-ohm reading after one minute. Low meg-ohm readings indicate a winding problem or shows that the windings could be damp for example.  

Read more...

A FEELING FOR WHAT’S LIKELY TO FAIL.

Whilst the adage that ‘prevention is better than cure’ is well known and respected within the industry, particularly where plant equipment is concerned, standing by these words requires walking the fine line between suffering the occasional failure of a machine and overmaintaining equipment.

Predictive maintenance (PM) is the tool that helps us walk this fine line. Knowing what is wearing (or failing in some other way), and how fast this is taking place, enables repairs to be undertaken as and when necessary, thus maximising the life of good components. It also facilitates the timely removal of parts which have worn unexpectedly fast.

Read more...

As assets become smarter and CMMS/EAM packages become more integrated across various asset classes within a manufacturing company, responsibility for facility management (including facility maintenance) has become spread over multiple departments. Historically, facility and plant maintenance were the sole responsibility of the Maintenance Department which ultimately reported to the Plant Manager or Works Manager.  However, plant equipment is the focus of most Maintenance departments in a manufacturing environment, except in the largest and most complex multi-site facilities.  

Read more...

It is common knowledge that a range of Condition Monitoring (CM) techniques are available such as Vibration Analysis, Oil & Wear Debris Analysis, Thermography and Acoustic Emission. Each of these techniques has its own particular areas of strength and in this regard the Acoustic Emission (AE) technique has the noted advantage of giving real time information with early sensitivity to faults and applicability to a wide range of rotational speeds including slowly rotating (source : ISO 22096).

It follows that on-line monitoring systems should be capable of integrating the required mix of CM technologies for each particular spread of machine types in an installation. However the use of AE for machinery condition monitoring has historically been viewed as a separate specialist field and it has not been easy to integrate it into third party or industry standard monitoring and control systems. To address this issue Holroyd Instruments has developed a range of smart AE sensors, which have finally opened the door to the wider use of AE for continuous monitoring alongside, say, vibration, and temperature sensors.

Read more...

Christer IdhammerA very important part of a cost-effective preventive maintenance program is what I call the route-based activity. These are activities that are easiest to do, and to administer, if they are presented in a list. This list can be presented in electronic format or in a paper format and includes such activities as lubrication and inspections by maintenance craftspeople and equipment operators. There are two major things that surprise me regarding these basic preventive maintenance activities:

With the very good return on investment (ROI) you get from these programs, I am surprised at how many plants lack these programs or perform them very poorly.
All major computerized maintenance management systems (CMMS) lack the capability to administer these routes in an efficient manner.
RETURN ON INVESTMENT. We use cost avoidance analysis as a tool to measure the return on investment (ROI) from route-based activity programs (exclusive of lubrication). In the last year we have verified the ROI to be between five to 10 times the initial investment and, after that, 10 to 30 times the cost to run the program. Even if such a good ROI can be verified, the inspection program is very poor in most plants and, if one exists, it is not executed with the highest priority.

Computerized Maintenance Management Systems (CMMS) SHORTCOMINGS. All CMMS providers we talk with say their systems can produce inspection lists to support inspection and lubrication routes. We must understand that, in the computer world, the answer is always, "Yes, our system can do that.

Read more...

Download the EMS Magazine Click the image to launch the interactive magazine

Explore EMS

EDITORIAL

PRODUCTS & SERVICES DIRECTORY

RECRUITMENT

EVENTS

FORUM

EQUIPMENT FOR SALE

New Flir I5 Thermal imager, Quality Used Forklift Trucks at Bargain Prices, IR Equipment For Sale, Eurobond Adhesives, New Tritex Multigauges, New CCTV Tester ...

LINKS

CONTACT US


www.EngineeringMaintenance.info

Specifically designed to promote technical excellence in maintenance, informing and educating the top maintenance professionals across the globe. Maintenance is often seen as a cost to business instead of a major benefit. A properly structured maintenance programme not only reduces downtime but also increases productivity and efficiency levels, which in turn improve the profitability of a company.

Engineering maintenance Solutions is a unique new media information company unlike any other you may have used in the past. We provide the perfect platform in which to promote your company’s products and services.This site contains the latest editorial, news, jobs, workshops, video presentations, forums, directory, events & more.

 Copyright Engineering Maintenance Solutions 2009 ©