ah right. i cant quite remember any otis gear with an exciter, but there is 100's of old otis lifts with gennys up to 60/70years old in melbourne still in service.in fact there is more geared/gearless umv's than solid state drive lifts i reckon which is good as it keeps us employed! i do remember an old otis guy telling me about reversing genny polarity if you lift a brush when the genny is running. also he said you can attach a battery to get the right polarity. is this what you mean by exicter as being the actual genny armature? for a lift still in service ive never had to worry about a reversal of polarity. this is weird.
