Has been in package since I bought 7-8 years ago. Runs ok but no power. attach any cars and no movement? Also lost instructions?
I have three of the two truck 36 ton Shays, one of the original run, and two of the second run. Your symptoms sound like you could have the dreaded "split drive gears". If you can hear the electric motors spinning, but your loco isn't moving, try taking off the bottom plates from the trucks and closely inspect the (usually) black plastic gear on the axle connected to the drive wheels. Look for a split (axle to outer diameter). If that's your problem, you're kinda' hosed. While you have some options, none of them are particularly cheap. :'(
Wishing you better luck than I,
John