How To Test An Electric Motor Armature

Check for shorts or open armature windings by touching one test lead to one commutator the grooved copper section that contacts the brushes segment and the other test lead to another segment.

How to test an electric motor armature.

How to test electric motor windings step 1. The new brushless motor is maintenance free highly reliable and has a life of 20 000 hours. Lift the armature from the lower casing. To perform a cursory check of the bearings place the motor on a solid surface and place one hand on the top of the motor spin the shaft rotor with the other hand.

Closely watch feel and listen for any indication of rubbing scraping or unevenness of the spinning rotor. Compare each segment with every other segment and look for either open infinity ohms or shorted zero ohms armature windings. Test the first set of wires. To check the condition of the armature windings the armature will probably have to be removed from the motor.

Now is the time to test the white brown and white wires. If they are smooth then they are fine. Connect the probes to. These are fitted to each end of the motor where the armature sits.

Clean the windings and motor interior with shop air and inspect for any damage. However if the motor design has external brush holders you can unscrew the brush caps and remove the brushes. Look at the bearings on the top and bottom parts of the casing to see if they show signs of wear. Take your multimeter and set it to ohms.

Check winding insulation for. New dc brushless motor introducing a robust dc brushless motor and gearbox combinations. If they have grooves or feel pitted they need replacing. Here are three quick checks you can perform with a volt ohm meter to test a dc motor armature winding to determine if a motor armature is functioning properly.

Remove all power from the motor and isolate the circuit. The white wire is called the run wire. Perform a check of the bearings. Depending upon brush size this may allow access to the commutator without removing the armature from the motor.

180 degree resistance to check the condition of the armature windings the armature will need to be removed from the motor.