The SAE International standard for reliability-centered maintenance (RCM)1 says an inspection2 should be done if it is technically feasible and worth doing. The hard part is identifying when a task is technically feasible. Continue reading
Much can be said about trends that relate to equipment reliability in one way or another. Like everything else, they come and go randomly. Just like carbonated water, trends that are reduced to the flavor of the month can fizzle out and disappear rapidly. Trends probably always existed in all fields of endeavor and have been observed for years in the field of machinery reliability improvement. This article focuses on some recent ones that are on relatively solid ground and should be of interest to you. Continue reading
The overwhelming majority of industrial accidents result from human error. Engineers who sleep less than eight hours per night are less productive and almost 10 percent more likely to cause an accident, and many don’t get enough sleep. The solution: take a short nap. Continue reading
Outward appearance is often considered a strong indication of what can be expected of the final product. That’s why this shop goes the extra mile to look good in all areas of its business.
A first impression is a lasting one. The folks at H&R Screw Machine Products (Reed City, Mich.) understand the impact of this axiom when their parts are delivered to customers. If oil is soaking through the box or parts are dirty, the customers are going to be much more skeptical about what they are paying for. The company produces millions of parts a year and sends a majority of them through its aqueous cleaning system to ensure that the customers like what they see. Continue reading
Why are organizations leaving money on the table by not investigating failures that cost them money? One would venture to say that all manufacturing companies have failures each year that cut into their profit. The prevailing question is: What do you do when that failure occurs? Do you simply fix the equipment, get back up and running, and return to whatever you were working on at the time? Or, do you stop what you are doing and diligently try to understand why the failure occurred and put measures in place to prevent recurrence? Is the culture at your facility one that seeks to understand why something failed or is it in a mode where you need to get back up and running as fast as possible? How about your commercial team and management external to your facility? Is there perceived pressure and a lack of understanding that have driven your organization to a place where failures are not fully understood?
Traditionally, reliability engineers have been the leaders in introducing new maintenance processes and technologies. As the primary owners of asset reliability, whether or not it came from the introduction of condition-based maintenance or instrumentation, they have been at the core of the transformation. Continue reading
Most machines have rotating parts and those rotating parts vibrate. Measuring how and how much those parts vibrate can tell you a lot about the health of a machine. Whether it’s the rumble of worn bearings or the shaking, shimmying, or thumping of loose, misaligned, or unbalanced parts, machines have a tale to tell those who are willing and able to listen. Continue reading
To some people, the word “housekeeping” calls to mind cleaning floors and surfaces, removing dust, and organizing clutter.
But in a work setting, it means much more. Housekeeping is crucial to safe workplaces. It can help prevent injuries and improve productivity and morale, as well as make a good first impression on visitors, according to Cari Gray, safety consultant for the Ohio Bureau of Workers’ Compensation. It also can help an employer avoid potential fines for non-compliance. Continue reading
A sophisticated signal processing technique can help to pinpoint bearing failure at an early stage. Chris Hansford, Managing Director at Hansford Sensors, explains.
Experienced operators can often tell if a machine is not working properly, on the basis that is does not ‘sound right’. The same principle can be applied – using modern electronics – to identify the exact cause of the problem. Continue reading