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Voltage Regulator / Rectifier Question on 520H
By
kwalshy, in Wheel Horse Electrical
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By supoc7
I have a 1987 wheel horse M10 461521 that has a voltage regulator. Now, all the schematics I've seen show no VR.
This is supposed to be an unregulated charging system. Now it's charging about 18 volts on a new fully charged battery.
The VR has 3 terminals H,B,S and the number on it is 1046. I would like to replace the VR but not sure with what. The
lights only work with the engine running. I don't want to ruin this battery with this high charging rate. Anybody have any ideas
on whats going on?
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By oldredrider
Assuming the front mount Wheel Horse generators were made by Generac, is there a source for parts for these units?
Been searching the web but parts for these older units seem scarce.
Would appreciate any help or direction I can get to keep this "old stuff" running.
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By Rob R
So I have a Honda gx390 OHV engine in one of my Sears Suburban's which runs great and has cut my lawn for at least 5 years, it has electric and pull start. The engine was installed by the PO as was the wiring. Since I have owned it, it has never charged correctly. It has two wires coming from the engine one black and one brown... The black is currently connect back to the B+ through a small 1 inch plastic connector that has the symbol for a Diode on it I suspected that this is the juice back to the battery don't know if this is also some sort of rectifier (very small like one inch X one inch plastic) I took the voltage reading off this and it was a very low reading ….. like 2.5 volts DC. The other brown wire to me was more like it this wire is just hanging not connected voltage measured 27-32 volt AC.... Both wires have the same push-on connector and I seriously considered switching the wires (connecting the hanging 27-32 volt AC to the Diode and see what happens but I didn't have the courage to do it).
Questions : Could I install a new circuit using a external rectifier to the 27 volt AC drop? Note there is only ONE wire from the stator putting out the 27 volts DC all the Wheel Horse rectifiers I have seen have TWO wires and a B+ tab. Would you try connecting the hot AC volt line to the current Diode/Rectifier? Could doing this take out the Diode, also If yes and this provides DC output how would I control the amount of charge to the battery. Do they make ONE wire (AC input Rectifiers) ?
Lots of questions I really need to solve this problem so that the battery stays charged and I can use the starter. Thanks in advance
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By JNMULL
Good morning, I have been a long time reader, but a first time poster.
I have a 1988 Wheel Horse 520HC Tractor. Does not charge, and I have to assume that it is due to the fuse at the front of the engine being blown. However if I replace the fuse that is located at the front of the engine, the wire at the voltage regulator will get hot, start to smoke as it melts the wires insulation.
I have not started testing anything yet, as I just have stumbled upon this issue and was wondering if anyone else has had the same style of problem and what kind of repair did you have to perform.
Thanks.
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By ztnoo
I have a 1969 GT 14, 1-7741, which originally had a K321 14 hp engine that gave up the ghost.
That was replaced with a K341 16 hp engine.
The original rectifier was used when the new K341 was installed and performed fine.
I am now in need of a new rectifier because of broken male spade.
How can I identify the proper rectifier to match with a Kohler engine (in my case for a K321 or a K341), and what resource can I research to obtain that information?
Regards,
Steve
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