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Old April 30th, 2009, 02:10 AM   #1
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Default Generac 5500xl needs something...

Well it dosen't put out electricity anymore. It does but only like 6 volts, and it is missing the control board. I tried bypassing it and installing new brushes with a built in rectifier.

No dice, but the motor runs stong and fires up easily.

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Old May 26th, 2009, 06:50 PM   #2
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Old June 21st, 2009, 07:36 PM   #3
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Old June 21st, 2009, 09:45 PM   #4
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You could try connecting a corded drill to it, while the generator is running, hold the trigger down on the drill and spin the drill by hand in the opposite direction as the trigger is set to. This will re-excite the internal magnets and will sometimes bring the thing back to life. Once you establish voltage again, load it down with a couple heaters or lights, and that will bring the residual magnetism back to life for a while.
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Old June 21st, 2009, 09:46 PM   #5
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You could try connecting a corded drill to it, while the generator is running, hold the trigger down on the drill and spin the drill by hand in the opposite direction as the trigger is set to. This will re-excite the internal magnets and will sometimes bring the thing back to life. Once you establish voltage again, load it down with a couple heaters or lights, and that will bring the residual magnetism back to life for a while.
Without a control board, it will never receive it's excitation, and will never be able to function. Plus, isn't that a PCB/VR combo on those?

Sounds like it already has residual, with the 6v output
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Old June 21st, 2009, 09:54 PM   #6
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Without a control board, it will never receive it's excitation, and will never be able to function. Plus, isn't that a PCB/VR combo on those?

Sounds like it already has residual, with the 6v output
I figured if he wanted to get it working, or anyone did for that matter they would replace the board Not sure if the smaller generacs use that same type of voltage regulation? My homelite 5500 needed to be re-excited and was exhibiting the same 4.5-6 volts of output.
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Old June 21st, 2009, 09:57 PM   #7
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I figured if he wanted to get it working, or anyone did for that matter they would replace the board Not sure if the smaller generacs use that same type of voltage regulation? My homelite 5500 needed to be re-excited and was exhibiting the same 4.5-6 volts of output.
Those old generac portables are a B&S setup with a generac engine, and they're badged generac. My knowledge is about 0% on those things.
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Old June 21st, 2009, 09:59 PM   #8
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Those old generac portables are a B&S setup with a generac engine, and they're badged generac. My knowledge is about 0% on those things.
Yea i dont know much about them either , just giving my past experience on the briggs 5500 that i had. The voltage reg and controller were all one piece as you said above. There is no battery on them though to start the voltage to the rotor, and thats where the drill came into play on mine. Thing took off almost instantly when i turned the chuck.
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Old June 29th, 2009, 11:33 AM   #9
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is there any way to bypass the control board? I know the older ones do not have a control board. The rectifier is built into the brushes I think.
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Old October 4th, 2009, 06:23 PM   #10
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