I have a brand new Lionel legacy SD40. I took the roof panel off and started to fiddle with the "smoke/no smoke" switch and I think I broke it. Now the switch has no "resistance" when I move it and I'm sure it's broken. The engine won't smoke at all (no fan sound, etc.) Could I replace this switch assembly myself? Or any other ideas? It has 3 switches on top (smoke, odyssey, reverse unit). Thank you!
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