Just got given Bachmann Dcc system by relative ( I think bought on EBay). On a test loop all the functions work but I cant get it to program I have tried it on 2 rail trucks and 2 forneys ON30. the unit shows it is in the program mode but when you change number and then exit the unit is still programed #3 not any other number.

Hi new here but model railroader from way back.
Im getting ready to back date a 2-6-0 to DSP&P style, but have run into problem. Is there any better information on taking the 2-6-0 apart other then the exploded drawing? I got to a point where I cant find a way to get it apart. Cab off, pilot off brake, rigging hanging cant get it out, I know there is a wire connection but cant seem to see it or get it loose, wheels loose but not unhooked from side rods Cant get boiler off to get to screws.