Dan/Ed: I didn't see any unsoldered wire on the commutator. Before re-assembly, should the thrust bearings (2) be packed with grease for smoother/quieter running?
ADCX Rob: Using an Ohm Meter, the 3 commutator segments have continuity among them. Concerning shorts to the shaft, there is no continuity between the commutator segments and the shaft. Is this the way it should be?