I have a International Harvester - Farmall locomototive made by Bachmann.  I want to install a decoder.  How do i get the interior weight off.  tha shell wasn't no problem & I don't want to "experiment" in getting to the motor for connecting it to the decoder.  can yo please give me directions on how to accomplish this?  Thanks
Richard ?

I recently acquired a Farmall HO scale train with 2 flatcars.  Bothe of them have a full length billboard & broad platform (1 has a tractor on it) attached to the flatcar.  I'd like to remove them so that I can use the depressed center flatcar for other loads. They are currently too wide for clearances on my layout.  How can I remove the billboard/platform?
Dick