Here You Go.

HECO Blog

Should Distance be a Factor in Determining an Electric Motor Repair Vendor?

09/14/2017

Does shorter travel time translate into longer equipment life?

 Maybe it does, but in order to answer this question we need to take a look at a few factors that can make the difference. Right down the road from your plant is XYZ Shop, you’ve been using them for years because they can respond quickly, and when you get the motor back, well… it works. You’ve sent this 100HP vertical to them five times over the past six years and every time it bolts right back in place and runs. You continue to send it over because, John knows my motor. At this point I’d agree. After having it in his shop five times he knows exactly what to do to make that motor run again. Here’s a thought, what if it’s the pump and not the motor that is the root cause of the failure? Does John ask the question about the driven equipment after seeing the same mode of failure over and over again? Or does it not matter because we’ve grown comfortable with XYZ Shop and they do a good job of getting the motor up and running again, even if it is every 14 months.

How long does it have? My equipment is failing!

08/30/2017

As a reliability specialist you often get asked the question, “How long does it have?” or "How long will it last?" after you have determined an issue such as, bearing fault, gear tooth damage, or even imbalance? If you have asked the question or been asked then you’re in the same boat many others have been in before you. The short answer is NO ONE KNOWS FOR SURE! Typically, we can compare similar situations of past experiences and determine an estimated answer, but not a definite period of time.

Do you BEAT UP your vendors or PARTNER with them?

08/21/2017

Everyone who deals with vendors has a choice to make. Should you beat them up and show them "who's boss" or should you partner with them in the spirit of cooperation? Which one do you choose? Can you do both?

There are a lot of articles on managing vendor relationships, many people much smarter than i am write articles and books on this topic. However, there is a fundamental, philosophical choice that i see companies (and individuals alone) make when dealing with vendors. Are they open and honest and treat their vendors as partners in advancing items at their location? Or do they constantly demand more and more of the vendor and want to pay less?

Motor Management is more than just storing a few motors!

08/02/2017

The term motor management has been used for a variety of items. The most commonly used definition is typically storing motors in a warehouse, what we like to call a "motor hotel." Is simply storing motors the definition of motor management or should it be more?

We say that it should be much more than just storing a few motors. A true motor management program should be looking at everything involved in that motor's life; from purchase to repair to all the different systems it ran as a part of.  Motor management is an all encompassing program that lives and breaths reliability and up time.

Maintenance Culture: Are you defending or evolving?

07/12/2017

It is easy to look at something you created or implemented with blinders on. You put the effort into it and figured it all out and now someone else (a new manager or vendor, etc.) is coming to you saying that their idea is better and will improve upon what you built. It is human nature to be skeptical and defensive, especially since people are always over-promising and under-delivering on what they initially say they can do.

The big question here is were you receptive or did you immediately defend what you are already doing? Are you keeping an open-mind in order to evolve or are you a brick wall and its your way or the highway?

How important is certification for vibration analysis?

07/06/2017

Category I, Category II, Category III and Category IV - What are they and what do they have to do with vibration analysis? Why should they matter to my corporation?

Through The Vibration Institute, Mobius Institute, Technical Associates of Charlotte, and various other groups offer certification in vibration analysis. More importantly, they are certification to ISO 18436-2 Vibration Condition Monitoring and Diagnostics.

So... My Electric Motor Failed - What Now? A Reliability Story

06/19/2017

So your electric motor failed, AGAIN! You remove it and send it to Harold at Acme Motor Repair across town and a few months later you get it back, just like the last time. Harold is a good old boy, always there to fix that motor every time it fails. The key words here are “every time”.

Harold never asks you what conditions the motor was under when it failed, what the environment conditions are where the motor was installed. Harold never asks you if you are lubricating the motor or if you even know how to lubricate the motor. Harold has never asked you if the motor is directly coupled or if you are belting it, he just fixes the motor. You once asked Harold for a failure report and he sent us a copy of the invoice. You’ve asked Harold if it made more sense to purchase another motor and he said that he was cheaper than anyone in the neighborhood on his repairs and under the price of a new motor.

Electric motor items to consider when adding a VFD to your system

06/06/2017

So you are thinking about adding a variable frequency drive (VFD) to an electric motor in your plant. Great! Variable Frequency Drives are great controls that allow you to adjust the speed of the machine at the push of a button or program it into your automation platform.

But what could this do to your motor? There are a variety of factors to consider before adding a drive to an electric motor, such as:

Speed Range

Motors are designed to operate at a certain speed. If they are designed to operate on A VFD at certain speed ratios, those are listed (Dependent on torque type) on the nameplate. These motors have been tested by the manufacturer and are nameplated to be acceptable for use in those situations. This does not mean a motor that is not namplated for these ratios will not work, you just may want to consider if it designed to operate at a different speed or not.

Are you trying anything different in order to keep your plant running?

05/30/2017

Albert Einstein famously said that "The definition of insanity is doing the same thing over and over again and expecting different results."

The same applies for industrial maintenance and reliability practices. It is amazing the amount of individuals who rather than trying something different, will hunker down and defend "the way it always has been". Many times those same people will then discuss how many unplanned failures they have had and that they got a great response from their vendor and a great turn-around time. Repair, Failure, Repeat - over and over and over.

Imbalance and Vibration in your fan are not the same!

05/25/2017

It is very regularly that we receive a call from a client that a fan is vibrating and that we need to send someone out there to balance the fan! A good portion of the time when we arrive, it is indeed a balance issue, where the fan has had a buildup of material on it. Many times this throws off the balance but simply cleaning the fan blades can resolve the issue. Sometimes it can't which is when the actual process of balancing comes into play.

Subscribe to Email Updates