Hey guys I bought an older bachmann spectrum k4 and I want to completely service it because I don't know it's history or if it's ever been serviced. After running it for about 15 minutes I put my nose up to the loco and could slightly smell burning. I tried looking at the exploded diagram but I can't really make sense of it to see what I have to unscrew to take the shell off and expose the motor. Can anyone point me in the right direction?

Hey everyone! I just received an ho spectrum k4 from eBay that I knew needed some work, such as the headlight but what I didn't expect was the drawbar to be broken. It is part no. 8410X-00K01. I emailed bachmann and they said the part is no longer available. Does anyone know where I can find one or if I can modify another kind of drawbar? Thanks