July 20, 2021
This blog post continues an 8-part series on vibration analysis written by Dr. Sara McCaslin & Nolan Crowley, Business Development Manager at HECO. Dr. Sara McCaslin: Sara has a Ph.D. in mechanical engineering from the University of Texas at Arlington. Sara has also taught materials science, manufacturing, and mechanical system design at the University of …
July 8, 2021
What’s the average lead time on electric motor repairs? That question comes up often and can be difficult to answer. The lead time for a motor repair depends on several factors. If you want a repair that increases the reliability of your motor, it’s almost impossible to provide an accurate lead time estimate before knowing …
June 17, 2021
I2021-06-Asset management system for plant floor-06-17-2021t has always amazed me how unprepared some businesses are in the event of a breakdown of critical equipment. These unplanned plant shutdowns can have a tremendous financial impact costing companies hundreds of thousands of dollars per hour. Almost every time that we help one of our clients through one …
May 12, 2021
During failure investigations we often see misalignment on vertical motors as the failure mode and when we ask for alignment readings at time of installation, we often hear that the “motor and the base have a register fit and alignment isn’t required”. This is far from the truth. Let’s look at why alignment should at …
May 4, 2021
One of the extra steps we can perform at HECO when performing repairs, maintenance, or rebuilds on your electric motors is magnetic degaussing. While some may feel this step is unnecessary, experience has taught us that it can help prolong the life of your bearings and your motor! Why Magnetic Degaussing of Motor Components is …
April 29, 2021
You’re trying to select a vendor to perform some repairs (and possibly a rebuild) on one of the critical yet problematic motors in your facility. You’ve received some good bids and are reviewing the vendors under consideration when you notice that one says they have a good relationship with the vendor of the motor you …
January 13, 2021
When it comes to inspecting electric motors, it’s not just the electrical components that are important. The mechanical aspects of a motor are extremely important to its performance, which is why mechanical inspection of electric motors is so important. Critical Fits for Electric Motors Electric motor inspection, when done correctly, always includes a mechanical inspection. …
December 16, 2020
Two-pole motors can be more challenging to repair because of the vibration issues that can be related to the units operating at higher speeds, which means there are special tests that need to be performed on them. Without checking characteristics such as runout and roundness, there is a chance that vibration won’t show up until …
July 16, 2020
In part 1 of How to Test an Electric Motor, we talked about the importance of testing and different types of tests that you can perform. In part 2, we are going to talk about more of these tests and how you can put test data to good use. Shaft Current Test When you suspect …
July 7, 2020
There are so many different tests that you can perform on an electric motor — and that’s why it’s key that you know what the purpose is of these tests, how they work, and what the data means. This blog post is the first in a two-part series on the subject of electric motor testing. …
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