Posts tagged with: Pre-Alignment

What is the Fixturlaser NXA Runout Probe?

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By on November 7, 2017

VibrAlign has introduced the Fixturlaser Runout Probe, an accessory device for the Fixturlaser NXA Professional.  I (as a jaded, grizzled old millwright-but a good “company man”) was outwardly excited.  But inside, I thought, what’s the big deal?  It’s an electronic dial indicator. That’s what I thought – until I took it for a test drive!  […]

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The Cure for Alignment Frustration!

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By on June 28, 2017

A customer called me, extremely frustrated, because he could not get a good alignment.  “I’ve spent two hours trying to align this stupid pump!” he said.  He blamed the laser, the “cheap” pump his company had, the bad base, his bad trainer (me), and anything else that came to mind. I did not take it […]

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Roughing In Before Precision Shaft Alignment

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By on June 1, 2017

Some people believe that precision laser shaft alignment has evolved to the point where pre-alignment steps, such as roughing in the alignment with a straightedge, are no longer needed.  Well, quite frankly, those people are wrong! The reason for roughing in the alignment has little to do with how accurately the lasers/sensors measure.  It has […]

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When an Alignment Check Turns into Starting from the Beginning.

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By on March 22, 2017

A recent NXA Pro training class performed an alignment check of a winch driven by an 80 HP, 1800 RPM, DC electric motor with a gear style coupling. The initial results revealed a misaligned machine, with a vertical angularity over 13 times the tolerance of 0.7mils/1” (1.0 mil = .001”), vertical offset six times tolerance […]

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Cooling Tower Alignment

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By on November 4, 2016

Performing Precision Shaft Alignments on Cooling Towers present a unique set of challenges. A recent job is typical of what I find. We were originally called out because on three cooling towers the motors were experiencing high vibration. Some of the challenges include: 1 – Access through shrouds 2 – Ladders often required to gain […]

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Get out of Trouble Before You Get into Trouble!

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By on September 30, 2016

It really doesn’t matter the industry; industrial maintenance technicians suffer the same frustrations when performing a precision shaft alignment. Our team of trainer’s travel all over the country conducting training classes for paper mills, steel mills, chemical plants, gas and oil, etc. What we hear is universal across all industry. “I can’t get repeatable results, […]

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Bolt Holes – Size matters!

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By on April 28, 2016

I was asked to help a customer align a 500HP Motor / Blower.  The new motor came in on a skid, was lifted into place with a crane, new electrical boxes fitted and coupling put into place.  Now the easy part, the precision shaft alignment! We took two sets of measurements which repeated.  Made one […]

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Short-cuts, a way to make Precision Shaft Alignment take longer.

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By on February 12, 2016

I love my job, I love conducting precision shaft alignment training at various facilities across this great country and interacting with industrial maintenance technicians that have suffered through or are suffering through the same issues I did. I love proving over and over again that the VibrAlign method of precision shaft alignment is the best […]

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Soft Foot Concerns In The Stationary Machine?

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By on January 27, 2016

VibrAlign has numerous blogs on soft foot and the frustration that goes along with not eliminating it. Repeatability (or the lack of) can be a major issue. Vibration analysis will pick it up if it is severe enough. When performing a precision shaft alignment most, if not all, soft foot will be eliminated in our […]

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Troubleshooting Tips

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By on January 5, 2016

In his blog post “Repeatability vs. Desired Outcome – parts 1&2”, Stan Riddle, one of my fellow technical trainers for VibrAlign, explains why alignment results may vary from the expected outcome. He explains in some detail a number of causes and how they are affecting your alignment process. Many of these causes could be eliminated […]

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Common Precision Shaft Alignment Questions Asked In Our Training Classes

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By on December 10, 2015

While training mechanics all around the US, I have noticed that many of the questions asked in class are the same regardless of the industry. Fixturlaser tools are very intuitive and easy to use, so this puts the mystery on the alignment process. So here are some answers to some common alignment process related questions […]

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Why Can’t I Just Use My Straight Edge?!

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By on August 13, 2015

Recently, I was at NC State University observing one of our training classes. This question came up in the beginning of the class by one of the students, and I’m sure this question comes across a lot of people’s minds when they consider making an investment in laser or dial indicator precision shaft alignment tools. […]

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Clean, Clean, Clean! To Eliminate Soft Foot!

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By on May 7, 2015

There are many things that can affect the precision shaft alignment process, which needs to be checked and eliminated during the Pre-Alignment Steps, such as pipe strain, disintegrating bases, bearing or coupling wear, etc…. One of the main issues concerning shaft alignment of rotating equipment is the challenge of soft foot and its detrimental effect […]

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Don’t Overlook the Hold Down Bolt Washers

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By on January 22, 2015

Anyone involved in precision shaft alignment knows that unintentional movement is the biggest contributor to non-repeatable alignment results. Movement can come from several sources: Soft foot, loose bolts, flexible bases, excessive bearing clearances, improperly mounted or loose sensor mounting hardware, etc. One of the more elusive and least considered sources of movement is cupped washers […]

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Soft Foot And The Dirt That Causes It

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By on January 15, 2015

While on the road for VibrAlign ReAligning America, we trainers encounter similar issues at every facility where we conduct our Shaft Alignment Best Practices Training. During our training classes we ask the students what are some of the “pains” that they have regarding the precision shaft alignments that they have attempted in the past. The […]

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