large scale Northern Lights

[Nancejack]

We have a Northern Lights large scale. This year it started gradually slowing down to a complete stop in about ten minutes. The voltage at the track appears to be reasonable. I have cleaned and lubed everything I can. Am I correct in assuming that a new chassis is in order? Bachman suggested the model CH-90037, noting that the wheels are red and green. Is there anything else to try before getting a new chassis?

[Loco Bill Canelos]

Hi all I am helping this fan via private message, but if some of you have ideas please post them?

So far I feel it is the power supply, another possibility possibility is poorly connected track.

Bill

[Greg Elmassian]

first thing to do might be monitor the track voltage and see if it changes when the loco slows...

if it drops, then check for higher current (overload / motor issues) when it slows.

Voltage stays ok, then would suspect the loco, maybe carbon buildup between commutator segments, severely worn brushes, etc.