Current Topics

Using Your Laser Alignment System to Check the Validity Rule

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By on February 5, 2020

The validity rule is an important concept in precision shaft alignment. It can be used to confirm that your readings are accurate and is why we don’t have to rotate a full 360 degrees in order to get accurate alignment information. Here is a previous blog post with an embedded video that discusses dial indicator […]

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Generating Global and Special Reports in the NEST

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By on January 28, 2020

Once you have moved your data back into the Nest, after a Route has been collected, you may want to provide a report or reports to different parts of an organization. The Nest has several ways of generating a couple different types of custom reports. For your discussion we will focus on a global report […]

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Using the Verti-Zontal Process on Wind Turbines with Adjustable Chocks

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By on January 15, 2020

  Precision shaft alignment of wind turbine generators mounted on adjustable chocks is as straightforward as when aligning rotating machinery mounted on chocks down at ground level. In the case of a recent NXA Training Class in a Vestas V82 we knew before going up-tower that one revolution of the adjustable chocks equals 1mm. Also, […]

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Compressors, Drivers and Alignment Considerations

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By on January 9, 2020

The two main types of compressors are dynamic and positive displacement. The positive displacement compressor is probably the one you’re most familiar with.  It traps gas in a volume and then decreases that volume.  The decrease in volume causes a rise in pressure. A dynamic compressor uses a rotating element (usually called an impeller) which […]

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Flatness Measurement Repeatability, Part 2

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By on January 2, 2020

In a previous blog written by Brad Case (Sept 24, 2019), he explained how to perform a repeatability test and why it is good idea to do so. Here are few other items that have contributed to repeatability issues. 1)      The top rails were not sufficiently clean prior to taking readings. Paint was not removed, […]

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Identify Gaps in Knowledge with the Smart Machine Checker!

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By on December 16, 2019

At a recent Fixturlaser Smart Machine Checker (SMC) training class, one particular pump came up during the discussions. This pump has been “a problem child” for years. It had been rebuilt recently by one of the class attendees. The mechanic had rebuilt the pump “just as it had come apart” and was certain the impeller […]

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How to Reorder Points in the NEST

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By on December 9, 2019

Setting up routes is a very easy process in the ONEPROD NEST software and allows you to move machines into any order to allow for expeditious data collection. However, sometimes points need to be rearranged within the machine. Take the gearbox below for example.  Due to its size you don’t want to have to walk […]

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This Could Be Difficult!

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By on November 6, 2019

For the field portion of a recent training class, the decision was made to check the alignment on a plastic extruder. At first glance, checking the alignment of the motor shaft to gearbox input shaft is pretty straightforward. However, the output side of the gearbox had two shafts, so maybe this is not so straightforward. […]

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Do You Know the 4 Stages of Bearing Failure?

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By on October 30, 2019

How do you know if a bearing is about to fail? Bearings don’t last forever and can be damaged if proper precautions are not taken, so it’s important to know the signs of impending bearing failure. In this blog, we will go over the four stages of bearing failure and how this tends to show […]

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3 Types of Mechanical Looseness: What You Need to Know

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By on October 29, 2019

Mechanical looseness is a common diagnosis in vibration analysis. You will certainly run into it when you are monitoring your machines if you haven’t already. However, did you know that there are three different types of mechanical looseness? Knowing which type of mechanical looseness you are dealing with is essential to providing the correct solution […]

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Balancing How To #5 – How A Correction Weight and Location is Calculated

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By on October 9, 2019

In our last “How To” we talked about the trial run – using a trial weight and location, to calculate the amount and location of a correction weight, which should correct the unbalance.  Most modern-day balancing tools do the math for you.  Even though these tools calculate the correction weight and location, it is good […]

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4 Tips for Implementing a Successful Reliability Program

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By on October 7, 2019

Implementing a reliability program in your facility can have numerous benefits. Just a few of these include: Greater efficiency Reduced costs Better organization Increased understanding of machine trends Less frustration in the workplace Streamlined process The list could go on. Few of us are likely to disagree that a reliability program for your machines and […]

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Vibration Analysis: Where to Start

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By on September 30, 2019

  Vibration analysis is a useful way to monitor machine health. Many plants have implemented regular vibration analysis plans to ensure the condition of their machines is being checked at regular intervals and so, if an issue comes to light after spectral analysis, a solution can be pursued. When analyzing vibration, it is important to […]

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Flatness Measurement Repeatability Test

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By on September 24, 2019

When performing the Ariel ER-82 Top Plane Compressor Frame Measurement, surrounding reciprocating compressors in operation may cause repeatability issues due to excessive vibration. To compensate for high/excessive vibration the Sampling Time (measurement time at each measurement location) in the Fixturlaser NXA Ultimate can be lengthened as needed. The NXA has a built in Repeatability Test […]

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How to Differentiate Unbalance and Looseness on the Spectrum

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By on September 20, 2019

  What is the difference between looseness and unbalance? They have very similar spectrums with different influencers. One can even impact the other in some situations. That similarity can impact your ability to balance a machine expeditiously in the field. For clarity of this discussion we will limit it to Type A and B mechanical […]

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