I purchased this three truck Climax new in July 2012. I have been very impressed with this locomotive until today. The front truck keeps jamming up. I have taking the gear box apart and cleaned and inspected all the gears. Nothing looks like it is wrong to me. All I can figure is the gear attached to the drive shaft some how become crooked. I not sure what to do at this point.
(http://i1003.photobucket.com/albums/af160/ArcherTL/th_P1120238.jpg) (http://s1003.photobucket.com/albums/af160/ArcherTL/?action=view¤t=P1120238.mp4)
click to view the video
Send it in to Bachmann for warranty repairs, instructions are here.
http://www.bachmanntrains.com/home-usa/service_2010.php (http://www.bachmanntrains.com/home-usa/service_2010.php)
Pretty rare to see issues with the 3 truck.