Root Cause Analysis is a step by step method that leads to the discovery of a fault’s first or root cause. Every equipment failure happens for a number of reasons. There is a definite progression of actions and consequences that lead to a failure. An RCA investigation traces the cause and effect trail from the end failure back to the root cause. Much like a detective solving a crime. [Read more…]

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Wrecking a Mature PdM Program

The phone conversation starts with the words “Doug, I’ve got a big problem and I’m hoping you’ll be able to give me some insight as to how to resolve it.”

The call comes from a long-time client and someone I consider a friend. We not only worked together to start RCM effort at his company, we’ve hunted, golfed and attended a few sporting events together. Someone who if I’m working in his part of the country or just driving through I make a point to make a call so we can get together to and catch up on our lives. [Read more…]

by James Kovacevic Leave a Comment

The Actions To Accelerate Your Culture Change

Hit the ground running and embed the culture change to achieve maximum results

Your culture change has a plan, it has the right people in place, and you are ready to roll it out. Your change stands a better chance of success than most change programs as you have a plan with the right people. Sometimes changes fail because the change is not embedded quickly, people lose interest and go back to their old ways. If you haven’t already, please start at the beginning of the series with the warning signs that you need a culture change. [Read more…]

by Mike Sondalini 1 Comment

Cyclone Separators — an overview

What you will learn from this article.

How cyclones and hydrocyclones work.
Where cyclones are used.
Design features that affect cyclones.
How to get long life from cyclones.

A tornado can lift cars from the ground and hurl them hundreds of meters away. Chickens and ducks can be hurled kilometers away. The story of fish falling from the sky is explained by the power of a tornado to lift materials kilometers into the sky. The spinning vortex of air separates and segregates heavy and light objects. The heavy objects drop out sooner and the light objects are carried further. Cyclone separators and hydrocyclones work the same way. [Read more…]

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Measure twice, cut once

Measure twice, cut once. This is what the sign read in our Apprentice Training shop at Eastman Kodak. Anyone who has worked for a living in the trades understands the true meaning behind this phrase. The intent is to help your company save time and money by doing things right the first time.

The sign really could be posted on the wall of every shop, every office and every conference room in every manufacturing plant around the world. It applies to more than the skilled trades. The sign in fact applies to every person and every job.

Do it right the first time! [Read more…]

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Getting the Right People on the Bus and In the Right Seats

A guide to ensuring your department will support your reliability culture

People are the heart of any maintenance reliability program and they have the ability to make the program succeed or fail. This is why managing the change to reliability culture is critical. We covered a few of the key pieces to change management in the previous post. But sometimes, not matter what change management technique(s) you use, the change may not be successful. [Read more…]

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Spread Forces Throughout Equipment and Reduce Breakdowns

What you will learn from this article.

How forces are distributed through an object.
Force diagrams are used to represent forces on an object.
Position and direction of a force determines the type of stress.
How to redistribute force in a structure.

Why don’t you fall to the ground when you sit in a chair? Why doesn’t the roof fall in on top of you? We don’t expect these sorts of things to happen. But at times chairs fail and people fall to the ground and at times roofs fall on people. When structures are put under sufficient stress they will fail. [Read more…]

by Doug Plucknette 1 Comment

Quality, Reliability & Useful Life

The Impact of Precision Installation & Maintenance

Over the last several years I have been working on and off with customers to among other things build a maintenance strategy for their equipment that will insure the designed reliability of their assets.

A while back I was asked by one of these customers to come in perform several RCM (Reliability Centered Maintenance) analyses on some new equipment that was struggling to deliver the expected/promised production rates. As the team worked its way through the process of identifying failure modes I continued to ask the following questions: [Read more…]

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Building a Reliability Culture

Laying The Groundwork for a Successful Change.

It turns out that you have been deploying the right reliability tools and maintenance practices, but the organization’s culture was preventing or hampering the results. This is a common scene played out in many organizations, but there is hope. The culture change will be a long road, as cultures are not changed overnight. [Read more…]

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Electric Motor Current Protection Saves Your Plant.

What you will learn from this article.

Electric motor power current draw reflects the motor’s working load.
The electric current through a power cable can be measured using the strength of the magnetic field created around the cable.
Under-current detection protects against loss of load situations.
Over-current detection protects against over-load situations.

[Read more…]

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Red Alert: Your Culture Is Hurting Your Reliability Efforts

The Warning Signs That You Need a Culture Change

Imagine working within (or maybe you don’t need to imagine it) an organization in which everything is completely reactive. You arrive early to try and organize the work for the day, yet only to find out someone else is there doing it. [Read more…]

by Mike Sondalini 3 Comments

Reliability Centered Maintenance — What is it?

What you will learn from this article.

Meanings of ‘loss of function’, ‘failure modes’ and ‘failure patterns’.
RCM provides a way to select the best maintenance strategy for new plant and equipment.
PM Optimisation, a shorter version of RCM, is used on existing plant and equipment with sufficient known failure history.
The RCM process and procedure is introduced.
How to put RCM outcomes into workplace practice.

[Read more…]

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Defining Precision Maintenance

Ask 10 people to tell you what Precision Maintenance means. While some will use a few of the same words or give a few similar examples of what they think Precision Maintenance is you are going to get 10 different answers.

While few would argue the importance of Precision Maintenance, I find it interesting that in the world that offers Certifications in Asset Management and Equipment Reliability (CRE, CRL, CMRP) you won’t find an agreed-on definition of what Precision Maintenance means. [Read more…]

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Learning from A Failure

Why Failing Can Be Good and What You Can Take Away from It.

Regardless of how good a maintenance & reliability program is set up and managed, there will be failures. This is partly due to the maintenance program itself, where the focus is on the consequences of the failures, not the failures itself. This approach allows most organizations to manage large facilities will a minimum of staff and cost.

But what should happen when something does fail? Should we just carry on as usual since we avoided the consequences? Absolutely not. When a failure occurs, we need to learn from it and improve the maintenance & reliability program. Yet, many organizations address failures by implementing a PM routine. This is not the right approach. Remember only 11% of failures are age-related. Adding these PM routines to the program will cause a collapse of the program from too much work, not to mention the maintenance induced failures that result from it.

So what should happen? The failure should be analyzed and actions implemented to reduce the chance of the failure occurring again.
[Read more…]

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Oil — How Clean Does it Have to Be?

Clean, dry oil can extend equipment life between failure up to 8 – 10 times the normal operating life. Timken, the bearing manufacturer, reports that reducing water levels from 100 ppm (parts per million) to 25 ppm increases bearing life 2 times. British hydraulics research indicates that if solids contamination with particles larger than 5 microns (0.005 mm or 0.0002”) is reduced from the range of 5,000 – 10,000 particles per milliliter of oil to 160 – 320 particles, the machine life is increased 5 times. [Read more…]