Electric motors offer numerous industrial and commercial applications, providing power for manufacturing plants among other businesses. As with any similar device, the key to electric motor longevity is maintenance and the occasional electric motor repairs. Here are a few tips that will keep your motor fully operational to avoid costly breakdowns and production delays.

What to Know About Electric Motor Repairs 

Inspections

Perform several inspections on your motor, with the frequency depending on factors such as manufacturer recommendations and usage. Inspect individual parts for dirt, dust, and corrosion, and see if you detect a burning odor while watching the windings. Also, check the bearings for noise and vibrations that can signal wear, insufficient lubrication, and dirt buildup. If the bearings are not well-lubricated, they will feel hot to the touch.

Other component inspections include the commutator—or the split-ring device that reverses the current in a DC motor, as well as the brushes, or the points of electrical contact on the commutators. Both parts wear quickly and compromise the motor’s function without routine checks and replacements.

Testing

Test the motor windings by shutting off the power and opening the motor housing. You can check the winding insulation for cracks and the parts’ overall cleanliness before linking the probes to an ohmmeter.

Measure winding resistance based on the manufacturer’s winding diagram. Then, look for small resistance readings, as “short” or “open” readings indicate an issue and possibly the need for professional assistance.

Lubrication

Lubricate applicable parts of your electric motor based on the manufacturer's recommendations to prevent overheating and related wear and tear. Use oil or grease suggested specifically for your machine and follow application instructions exactly since excessive lubrication can cause insulated parts to break down.

If your motor is located outdoors and subject to extreme weather, you’ll need to change the grease or oil about once a month. Keep detailed electric motor maintenance records to make informed repair and replacement decisions. 

Work with Electric Motor Center of Russellville for electric motor repair or replacement services. Based in Russellville, AR, this authorized distributor of leading brands such as Baldor®, Weg®, U.S.®, Leeson®, and Worldwide Electric Motor® has served the region for over 40 years and provides reliable services and products that last. Call (479) 968-2532 today to schedule repairs or visit the company online for product details.