My son caused me to dig up my old 12V lego trains. Surprisingly they mostly work, except for one part:
This is the motor that drives the switches and railway crossings. I have 2 broken ones (and 2 working ones). One of them vibrates and buzzes a little but does not flip. The other one is completely dead and the ohmmeter gives a broken connection.
Does anyone have anything that might me help fix them? Photos about how to open them, etc...