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Generac Generators (SEARS, etc.)

Generac 10kw help needed 1990 SG010


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  #11  
Old 02-03-2019, 04:27:56 PM
NiteFarmer NiteFarmer is offline
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Default Re: Generac 10kw help needed 1990 SG010

Thanks Birken, So if I connect the S15's to 11 and the S44 to 44, I should have 240v across these two wires, correct? I don't want to fry something or cause myself more work by getting in a hurry.
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  #12  
Old 02-03-2019, 07:45:47 PM
Birken Vogt Birken Vogt is offline
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Default Re: Generac 10kw help needed 1990 SG010

Follow the S15s out and tell me where they go. I have the manuals for this unit, on paper. But back in those days they only printed general theory. They expected the technician to do the rest. So I don't know exactly where every wire goes until you tell me.
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Old 02-05-2019, 06:06:13 AM
NiteFarmer NiteFarmer is offline
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Default Re: Generac 10kw help needed 1990 SG010

Ok, if you look at pic #2 labeled Generac inside, the black box all the way to the left, (possibly the voltage regulator?), one goes here and the other one goes to the gage switch.
I am also going to post a pic of a box that I thought was the voltage regulator that mounts underneath the panel compartment, what is this? It is labeled 12OEOH. Since it has 12 on it, is it possibly the VR for the battery/alt?
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Old 02-05-2019, 09:13:09 AM
NiteFarmer NiteFarmer is offline
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Default Re: Generac 10kw help needed 1990 SG010

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Name:	Generac reg.jpg
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Possibly a regulator?
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Old 02-07-2019, 12:36:13 PM
Birken Vogt Birken Vogt is offline
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Default Re: Generac 10kw help needed 1990 SG010

The black box all the way to the left in the #2 original picture is the generator 120V voltage regulator.

The one in the new picture is probably a battery regulator but without wire numbers I can't say for sure.

If this is like the newer ones, the alternator is a permanent magnet device which makes AC on 2 wires, which goes to the regulator and gets rectified and regulated there.
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Old 02-07-2019, 02:37:28 PM
pegasuspinto pegasuspinto is offline
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Default Re: Generac 10kw help needed 1990 SG010

To clarify the above post, he means the battery charge alternator. The device on the bottom is indeed a the battery charger rectifier/regulator.

Wire #25 is ignition stator trigger coil, goes to the - terminal on the ignition coil

Wire #5 is a spare wire for the DPE winding, to bypass the internal thermal fuse. The fuse is buried in the stator and not replaceable.

Your extra #13 may go to the starter, as a battery +
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