Engine dis-assembly to check smoke switch.
After removing the one screw holding the lead trucks, the two screws holding the cow catcher assembly was removed. This base is the ground for the lights since the paint on the bottom plate was filed off for grounding the negative side of the head light bulb.
The two engine assemblies (driver assemblies) remove similar to HO models with two long screws holding the front of the back engine assembly to the boiler with two more short screws at the back.
The two selection switches located at the back below the cab are attached to two long narrow plates, each has 2 screws that have to be removed so the large motor will come out of the boiler.
The wires to the smoke switch appeared good as well as the wires going to the small circuit board where the tender tether connector is connected.
Looks like I'm going to have to be satisfied with no smoke in the TMCC mode.
The motor has a brass fly wheel on the back and a belt is used to transfer power from the motor to the driver train.
