Model Train Maintenance - A Guide to Beautify Your N Scale Trains
You would want to lubricate the motor brushes in your loco as you lubricate the ears
. These tiny carbon brushes are located between the motor terminal and the communicator which are responsible for providing an electrical connection between the two parts. They are liable to thin out since they go through a lot of stress caused by the friction produced during the operation. You will need to change them as they will not be able to provide the electric connection needed to live up to your impeccable standards.
Model Train Maintenance - A Guide to Beautify Your N Scale Trains