I am looking for direction on troubleshooting my 2-6-6- 2 steamer.  My steamer was climbing a grade and all of a sudden the back drivers locked up and I can't or don't know how to free them up.  checked directions but can't find any help with this issue. 
The front drivers work both directions but it appears the rear one is locked up?

Bart

Ah Ha...the old read the directions! Thanks Jim... I appreciate your direction!

Is there a way to reset the loco the original settings.  I attempted to program on the main and somehow have the sound screwed up?  Loco works, headlight works...NO sound at all.  f-8 checked... no luck.


Bart