hi i was woundering if some one could tell me what wires to hook up so i can keep steam function or have it work well loco is sitting still thx justin

can any one tell me what i have to do to run this kind of  engine on dc track

i have 21 0ld engines mos of them bachmann was wounder were to get diagrams on decoder installs and best dcc controller to buy money is an issue so i want to do most of the convertion my self thx for any tips