In Reply to: Re: Polarizing Generator posted by Gary on January 11, 2021 at 13:57:04:
When polarized wrong (reverse polarity) the usual arcing & sparking at VR contacts will generally weld or burn contacts. If correct, and polarization matches battery, then all should be good for charging. 641 has charge warning (idiot light) lamp & when VR cut out contacts close, it should extinguish. You can measure battery voltage before starting and again while running at speed & should see an increase of about a volt if charging.