Thanks, en4cer! What you say makes sense. I'll get one of my magnifying glasses to check out closely how the cover snaps in, then it ought to go fine with your directions. Sure is nice having folks out there who are willing to help.

How does one change the couplers on a Bachmann engine or rolling stock? The new locomotive and boxcar I received have the smaller couplers on them, with two larger couplers with springs in an accompanying small plastic bag. I need to replace the small couplers with the large, but I can't figure out how to do that. Any suggestions?
Thanks!