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How Do I test an electric motor?

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  • How Do I test an electric motor?

    Series Wound Motor:
    There are 4 connections on the motor, we'll use the following as an example. A1, A2, F1 and F2. The letters could differ. Put a jumper wire from A1 to F1 so they are connected. Now jump the A2 and F2 connections with a 12 volt battery or battery charger. It does not matter which polarity. If the motor is good it will turn over.

    Shunt Wound Motor:
    Again there are 4 connections on the motor, we'll use the following as an example. A1, A2, F1 and F2. The letters could differ. Put a jumper wire from A1 to F1 so they are connected, and another separate jumper wire from A2 to F2. Now run a current from a 12 volt battery from the A1/F1 connection to the A2/F2 connection. It does not matter which polarity. If the motor is good it will turn over.

    To learn more about which motor you have, check out this article located here.
    Regards,
    Michael Eddie
    Emails:

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