hi, i have a polar express engine that was working fine untill it stoped and the light on the transformer was blinking. i checked everything and found it will run as long as i turn the smoke switch off. as soon as i turn the smoke switch to on it stops and the light blinks again. im sure there is a short some where but dont know how to disasemble the engine to see. i need detailed instructions and cant find anything about removing the body of the engine to see inside. can anyone please help. thank you.
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