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As a follow-up on our previous post about electric-motor maintenance tips, we found a prime example of over-lubrication from one of the repair jobs in our motor shop. We unloaded the motor - it seems fine to the untrained eye.   We've got it on our work-space and it still doesn't look all that bad...   When we open the casing, we see the cause of failure.   Take-Away If you had your doubts about over-lubrication, hopefully these photos will be a stern warning. Over-lubrication can cause a motor to overheat and short the windings in the motor. Fortunately in...

 As an electric motor repair facility we strive to provide fast and effective repair services for our customers. However, we know that for our customers a call to the motor repair shop means a loss of valuable production time and a repair bill. We know that it’s in your best interest to never need to call us, so we’ve compiled a short list of best practices that will help keep your electric motor running properly as long as possible. Avoid Overheating Electric motors generate a considerable amount of heat, and they often operate in hot environments. Running a motor at...

Water pumps are a common application of electric motors. Keeping in mind that this course was designed with water-company employees in mind, this video is one of the most important portions of the class. David alludes to the existence of non-submersible pumps, but the people who were signed up for the course consistently have to work with submersible pumps. Troubleshooting of non-submersible pumps is typically less difficult, and the information provided in this lesson should be still be applicable. Video Synopsis Pump Components: A pump is a standard electric motor with an impeller attached and added components to protect it...

For more information about the effects of repair on motor efficiency, visit the EASA website.

 In this segment of our AC motor training course, David discusses the mechanism that causes three-phase electric motors to function. He also discusses differences between three-phase AC motors and other electric motors. This portion of the video might seem overly technical or unnecessary, but when attempting a repair, it is vitally important to understand how a machine works. If you lack understanding of the basic mechanism of a motor, how can you hope to repair it properly? Or more aptly put by the course instructor, “When you understand how stuff works, it’s a lot easier to fix!”   Video Synopsis...