I purchased this Rivarossi cab forward locomotive several months ago for $75 Canadian dollars in non working condition. Today I decided to have a go at making it run once again and after doing some tests I discovered the drive was shorted. Digging into the locomotive revealed there was more than once source of the short but luckily nothing that can't be fixed.

Fiberglass pencil: https://amzn.to/2VeB6CU (affiliate) USA