I have a new XC version which was perfect from the box. But in the past I have found the dummy car to have incorrectly fitted axles and bogies which does add significant drag. Make sure that all axles are spinning freely, coaches to. Also check that the base plate is fitted to the body correctly because this can rub on the wheels
If you haven't already try removing the front bogie and checking that the chassis doesn't buldge downward. This is a common problem with these models and it drastically increases the resistance. If you have ran the model a fair bit you may also see scratches on the chassis where the wheels have been rubbing against it. If you find this to be the case, I know how to fix it.
One motor car, track spotless and the gradient is just under 2%. Extensive testing has proved that adding weight makes a huge difference. Surprisingly, the loco is only marginally lighter than other models that can negotiate this gradient with ease. The problem is where to fit that extra weight? In the meantime, I have reduced the train to a four coach rig.
@@mikebiggs6632 That's interesting and no significant drag from the other cars? If not i would talk to the manufacturer as a 2% grade should be negotiable.
