Athearn motor polarity differences





The polarity of Athearn motors may, from time to time have the top and bottom motor terminals reversed, thus causing confusion as to which tab to solder the Orange a Gray wires to.


Before hard wiring a decoder in a locomotive test it on DC first.

With the (+) from the DC power Pack on the right rail the locomotive should move left to right.

Trace the wire from the right rail/wheel, this wire becomes the RED pick UP and the motor tab becomes the Orange motor wire.

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