adjusting 3-brush 32E generator

Electrical issues
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awander
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adjusting 3-brush 32E generator

#1

Post by awander » Sat Aug 06, 2011 6:18 am

I had taken the end cover off my 32E about 2 years ago, to adjust the 3rd brush. Then I figured I might need to adjust it again, so I left the cover off.

Finally a couple of weeks ago, I decided I might as well put the cover back on. The next day I rode the bike to work and back again(100 mile round trip). On the way home, the bike started running badly, which was solved by turning off the lights. As I pulled into the driveway, even with the lights off, ot would stumble when I gave it gas. I checked, and sure enough, the cover had pinched a wire, and broken it off. It was the wire from the 3rd brush.

I took the genny apart and repaired the wire, and then attempted to set the 3rd brush. With the lights ON, I adjusted the brush for 1 amp into the battery. Switching the lights OFF gave me 4 amps into the battery. I was not able to get the currents balanced between lights ON and OFF.

i have noticed also that with the engine running at road speed, and lights ON, I get about 7.5V cross the battery. With the lights OFF, the voltage rises to 8 or 8.5 V.

Is this ok, or am I going to cook my battery?



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Re: adjusting 3-brush 32E generator

#2

Post by awander » Mon Aug 08, 2011 1:40 am

Wow-nobody's got an opinion on this?

I've stumped the experts? :P

john HD
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Re: adjusting 3-brush 32E generator

#3

Post by john HD » Mon Aug 08, 2011 1:49 am

andy,

i would say you are doing pretty good.

the battery is really the ultimate regulator in a 3 brush system. if you are getting good service from the lamps on the bike you are probably right in the ballpark.

remember to check your water level once a month if you are riding it alot. that will also help you determine if you are overcharging it.

john

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Re: adjusting 3-brush 32E generator

#4

Post by awander » Mon Aug 08, 2011 2:46 am

Thanks, John.

I'm gonna' go check the electrolyte levels right now....

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Re: adjusting 3-brush 32E generator

#5

Post by awander » Mon Aug 08, 2011 5:12 am

Well, I've put a couple of hundred miles on her with this charging rate, and the battery is still full. I guess I will keep an eye on it, and keep riding!

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Re: adjusting 3-brush 32E generator

#6

Post by awander » Mon Oct 10, 2011 12:12 am

I found that the battery is defective-won;t hold a charge, though a hygrometer shows it is fully charged. That is probably why my voltage was spiking way up there with no lights....

I just put last year's 6V battery back on the bike, along with one of my rebuilt cutout relays, and the voltage never goes above 7V.....should make it easier to keep a taillight working... :D

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