Posts tagged with: Pre-Alignment

Are Shims Causing a Soft Foot Issue?

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By on May 15, 2018

One of the many things I love about my job is the numerous challenges we face during the field alignment portion of our Precision Shaft Alignment Training. Prior to the training, there were some repeatability issues when attempting to perform a precision alignment on this piece of equipment. One of the main causes of non-repeatability […]

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Channel Strut as a Motor Sub-base?

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By on April 12, 2018

At first thought it may sound like a good idea as the specialized fasteners in the channel make it easy to tighten the motor hold down bolts, however in reality it’s a cause for precision shaft alignment issues. Here’s why. A good pump/motor base is engineered to meet specific standards (IE: ANSI, API, etc.) with […]

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Challenging, But Not Impossible!

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By on April 3, 2018

As we trainers travel around the country conducting precision shaft alignment training, we often run into some fairly harsh work environments during the field portion of the training. At times the equipment that needs to be aligned is caked in product from spills or leaks. This can create a significant challenge when attempting a precision […]

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The Soft Foot Primer (Part 3) How to REALLY Minimize Soft Foot Every Time

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By on March 4, 2018

It is both possible, and desirable, to minimize the negative effects of soft foot.  While it may be difficult to completely get rid of soft foot, it can typically be reduced to a few mils, if the following techniques are used. PREPARATION AND CLEANLINESS CLEAN! If you remove the motor, wipe the feet clean, before […]

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Plan Your Work for Quick Alignments

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By on January 4, 2018

We have been teaching maintenance personnel to use the Verti-Zontal Process to perform precision shaft alignments quickly for years. The key to quick alignments is to follow the Verti-Zontal plan which includes the pre-alignment steps Obviously when alignment checks are done, the pre-alignment steps aren’t performed on the “front end” of the alignment however they […]

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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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