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Old 06-09-2007, 06:40   #1
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Generator battery charging question?

I have an old 6kw ENTEC generator with a Kubota engine that runs art 3600 rpm. Last week I noticed that the small alternator stopped charging the generator battery. Since I have a 12v fuel supply pump connected to the 12 v system of the generator, once the generator battery dies the pump dies and the generator too. What I did was to connect the generator battery to the 120v battery charger that I use for the rest of the batteries and that way I keep the battery charged etc. I was considering just to remove the small alternator from the generator and just charge its battery with the 120V charger.
Any ideas or comments????
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Old 06-09-2007, 14:32   #2
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That's fine, but another thought. Many gensets have a 12V output in the winding. Usually 8A @ 12V. You can run the pump from that if there is one. But the easier way would be as you suggest.
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Old 06-09-2007, 20:47   #3
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No problemo. I'd disconnect the alternator output and sense lines from the battery (or wherever they terminate) and tape them off as well to reduce any potential for a short.

Have you troubleshot the alternator? Could be an easy fix like brush blocks.
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Old 07-09-2007, 04:22   #4
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Most times t=it's not a true alternator but a dynamo and a nice rectifier assembly.
Only hang up i could see is it will not allow for adjustment of the belt that drives the circulating pump.
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Old 10-09-2007, 07:47   #5
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Quote:
Originally Posted by never monday View Post
Most times t=it's not a true alternator but a dynamo and a nice rectifier assembly.
Only hang up i could see is it will not allow for adjustment of the belt that drives the circulating pump.

That is exactly what it looks like. It does have a rectifier. I believe it may have something to do with the security circuit also?.
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