Bachmann spectrum k4 shell removal

[MattLeMun]

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?

[Trainman203]

What do you mean by "serviced?"

[MattLeMun]

Serviced meaning lubricating the motor bearings, worm gear, valve gear, and looking for wear like bad brushes or anything that could cause the burning smell.

[MattLeMun]

I think it's the screw underneath the trailing wheels when looking from the bottom of the locomotive by looking at it in person. Any confirmation?

[WoundedBear]

Check for a screw down the stack also. Many steamers have been built like that.

Usually two under the cab and one down the stack. Your model may vary.

Sid

[MattLeMun]

I just checked the locomotive itself. There's no screw in the stack. I think I'm gonna end up taking it to my local hobby shop. I also emailed bachmann directly. Thanks for the suggestion though I appreciate it a lot