I tested a Williams Anniversary 408 loco which I had bough and was perhaps never run. In great cosmetic condition but the loco barely moves. I oiled (wd 40) it just a tad and gave it some encouraging pushes. It made about seven or eight rounds on the track very slowly at full power from a 75 watt transformer. Does not E-reverse either. All lights work. Is it defective or does it need to be broken in? What is the experience of other owners of this loco. I have another Williams 408E loco that runs like a champ. Please, your thoughts. Thanks in advance.