I'm no electrician, but know some basics. I don't know about 2 transformers. The transformer steps down 12ovac to 25.2v...does not state ac or dc. The 24v then goes to the primary windings of the motor. As I understand it...the primary windings around the iron core create an electromagnet out of the iron core. As you can see, there are no permanant magnets in this motor. I suspect the windings in the armature are fine...just the electromagnet windings.
Does any of this make sense?