I have a Flyer Chief Polar Express train set for under my Christmas tree. It's the only AF train I have. I have many Lionel O trains and I am familiar with their repair. However, I am not familiar with AF. The smoke unit in the Berkshire that came with the set squeals. Sounds like it needs some lubrication. I would like to know where I can get a schematic drawing on how to remove the shell and that shows the inner working of the locomotive. I know it's the smoke unit making the noise because when I turn the smoke off the noise goes away. Any help would be appreciated.
Original Post