I have a Lionel New York Central Lines/B&A 4-6-0 Ten-Wheeler 6-28098 and want to install new pickup roller assemblies on the engine. Each collector assembly is attached to the underside of the engine by a stainless-steel screw (see photo). Can I just remove the screws, substitute the new collectors and retighten the screws or is it necessary to remove the shell to connect (or solder) the collector to wiring inside the engine?
MELGAR