Electric Motor Repairs And Preventive Maintenance Information

By Carol Anderson


Electric motors are machines converting electrical energy to a mechanical one with the opposite of this process being done by generators. Diverse applications are using this such as power tools, disk drives, household appliances, machine tools, blowers and pumps, and industrial fans. They can be powered either with alternating current or direct current.

Many companies under different industries use them because of their importance in their daily operation which requires them to properly maintain them. But sometimes they break down and fail so experts of electric motor repairs Toronto are needed to help out with this. The following are several things you should be doing during preventive maintenance for these machines on your facilities.

Inspect them visually and take down notes of any details you may have noticed with its physical condition. You can discover many things such as corrosion or dirt buildup on their individual components specially when they are operated on rugged environments. These might indicate internal problems because debris could limit its performance.

Make sure to observe motor windings and search for any burned odor that you can smell caused by overheating. Relay and contacts should be free also from rust and dirt which are harmful to the life of the equipment. Place the machine somewhere that is not exposed to the harsh conditions, toxic elements, moisture and dirt.

Check commutators and brush closely and you must not wait to experience any inconsistencies or the equipment will stop working before doing so. Beware of any tear and wear signs in brush because when one is found, this could lead to problems at commutation with motor. Because of this, brush changing is required immediately to regain functional integrity.

Commutator must be checked though because the condition it naturally has is being so smooth and polished. Any scratches, dents or grooves should not be there because rough spots could suggest a brush sparking is there. Thoroughly inspect the rotor, stator, mount and belts then replace components that could not serve their purpose anymore because of wear.

Test the windings after inspecting every machine components which will give you an idea on its existing failures and anomalies. Doing this is mandatory if you discovered cracks, burned odor and marks. Disassemble the motor when preparing for the test which consists of rewinding it and testing the wind insulation showing information about resistance level.

Check bearings for noise or vibrations because these can signify problems like poor lubrication, dirt buildup, and tear and wear. When touching them is impossible due to being very hot then this could be signs of it overheating and insufficient amount in grease. Specific task may be needed which depends on motor application, equipment location and bearing type. So you must know their bearing type to find out what repair is required.

Take down notes of each test that was performed during each preventive maintenance and collect the results to establish trends. Record all replacements and repairs made on every component for understanding the machines better. Doing this helps future inspections through your documents of previous tests done.




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