Machinery Maintenance

Is It Mils, or Thousandths, or What?

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By on December 1, 2017

On occasion, we are asked, “What are these numbers on the screen?”  All our alignment tools (and most others) can be configured in Imperial or Metric.  Most US users use Imperial (inches, feet, and so on). When we say, “Your laser displays in mils”, we’re asked, “What’s a mil?” Definition – [mil] noun. 1. a […]

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What is Misalignment Costing You?

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By on November 16, 2017

I recently received a support call from a nearby client, the issue was that the precision shaft alignment of a right-angle gear reducer to a line shaft was taking up to 12 hours (using another brand alignment tool) with little to no success. There are about a dozen of these units in this facility. This […]

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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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Shock Factor and SFI

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By on November 1, 2017

For years, vibration analysts have depended upon the ISO Vibration Severity Chart for the determination of machinery health.  Typically, this chart provides a level of certainty that would allow the analyst to look at the vibration levels, and if acceptable, move onto the next machine for analysis.   Some defects are determined in the waveform […]

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Fix the Easy Things First!

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By on October 26, 2017

One of the hallmarks of a good maintenance technician is the ability to troubleshoot – not just using vibration tools, or volt meters, or laptops with Ethernet plug-ins, but the ability to troubleshoot machinery in their minds.  In other words, the ability to visualize what the problem might be. “Fix the easy things first” is […]

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Using Bearing Defect Factor for Gear Defect Detection

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By on October 12, 2017

Bearing defect factor is a culmination of two technologies used for shock detection.  DEF is designed as an indicator for bearing defect detection, but can also be valuable in the detection of gear defects. Why is DEF significant? In the following data set are displayed Overall Vibration Velocity, Overall Acceleration, and Defect Factor.  The Overall […]

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The First Rule in Precision Shaft Alignment is “Don’t Assume”!

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By on October 6, 2017

This is an obvious statement and most of us know what happens when we do “ASSUME” with most things in life. However, we (The VibrAlign Trainers) see assumptions being made quite often during a precision shaft alignment. Several years ago, I read a book titled “A Millwright’s Guide to Motor/Pump Alignment” by Tommy “T-Hammer” Harlon […]

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One Resolution to Motor Resonance

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By on September 28, 2017

A customer was experiencing high levels of vibration on one of the HVAC motors. The cause for these high vibration levels was determined to be resonance. Resonance of this motor was seen in the vibration spectral data and was confirmed onsite with a bump test. This motor was not VFD driven and therefore the machine […]

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FIXTURLASER NXA PRO SELECTED AS THE ALIGNMENT TOOL FOR WORLD SKILLS ABU DHABI 2017

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By on September 20, 2017

The Fixturlaser NXA Pro has been selected as the laser shaft alignment tool to be used in the Industrial Mechanic Millwright competition at this year’s WorldSkills event, being held in Abu Dhabi on October 15-18. WorldSkills Abu Dhabi 2017, the world championship of skills, will have participants from 77 countries who will be competing in 51 […]

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Vibration Sensor Mounting Tips

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By on September 13, 2017

A vibration sensor (or accelerometer) measures vibration-simple, right?  But how and where you mount the sensor is CRITICAL to getting good information.  Here are some good tips to keep in mind. 1. Mount the sensor as close to the bearing location as you can safely do it. These sensors can measure vibration anywhere on the […]

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OEM Specifications

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By on September 7, 2017

Whether instructing a training class for precision shaft alignment or geometric measurements, the topic of machine specifications frequently comes up. Specifications such as shaft alignment tolerances, bolt torque values, frame or base flatness requirements and the frequency of verification of these specifications are typical of what is asked. There are general industry specifications such as […]

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Fire Pump Maintenance

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By on August 30, 2017

Fire Pumps are a critical safety item in facilities across the world. Their purpose is to make sure a building has enough water pressure in case of a fire emergency. Of course, the hope is that they are never needed but if they are they need to perform reliably. Fire Pumps are typically tested on […]

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BEFORE and AFTER: The Effect on Vibration Levels

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By on August 24, 2017

One of the most enjoyable parts of precision shaft alignment training for me as a trainer, is the field portion. This provides the opportunity to build confidence that what the students learn in the classroom, really works in the field! In a recent Fixturlaser GO Basic class, the decision was made to align two recently […]

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Precision Alignment and Balance isn’t Important – Unless you care about budgets and the reliability of your rotating assets.

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By on August 16, 2017

I read an interesting article in the June/July 17 issue of Uptime Magazine. It was titled “The Reliability Impact Within the P-F Curve” by Randy Riddell. Randy is the Reliability Manager for the SCA Barton Mill in Alabama. I encourage you to read the full article (https://reliabilityweb.com/articles/entry/the-reliability-impact-within-the-p-f-curve). The article includes the following graphic that I […]

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Rolled Steel Frame Electric Motors

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By on August 9, 2017

In the precision shaft alignment business, we encounter all types of electric motors.  One type we come across are “Rolled Steel Frame” (RSF) motors.  These motors have a frame housing and feet that are made from mild, rolled steel.  They range from very small up to about 25hp.  They are common in many industries; however, […]

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