Loco is brand new and should have been factory tested prior to customer purchase. Tony (authorized Bachmann Retailer), owner of Ultimate Trains, Nanton, Alberta, Canada, who sold me this product now has it back in his shop, and will correct this problem.  Many thanks for your info and advice.  Will advise.

Just purchased 55 ton 3 truck Shay and followed all lubrication instructions. Locomotive and all running gear works freely except the middle truck wheels do not turn. Gears are meshing and drive shaft spins freely, Rear truck works properly..any help would be much appreciated..Thanks.