Some members may not realize that many of the product reference diagrams are available for download in PDF format on this site. Note "Product Reference" on the left menu.
http://www.bachmanntrains.com/home-usa/references.php
By zooming in to about 400 or 600 in Adobe Reader, then using the "hand" tool to pan the PDF page, you get much better detail of the parts.
The PDF filenames are meaningless for reference. For example, the filename for SD-45 DCC equipped is "H827X_IS002".pdf. When downloading, you should change the filename to "SD-45DCC.pdf", or whatever makes sense to you.
I downloaded most of the files for HO scale so I can open a file from my hard drive without leaving the post window, very handy in helping others, and for members to help themselves.
Regards.