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Farmall & IHC Tractors Discussion Forum

Voltage regulator

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05-28-2007 19:07:31

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Hi All, I have a Super C. When I shut the motor off I still have voltage going through the voltage regulator. Could it be the V.R. sticking. When the motor is winding down from running the ammeter goes way down on the Neg side. The motor runs good. I'm showing a good charge from the Gen. Has anyone got any ideas what it could be. Thanks Again,

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John T

05-28-2007 21:09:56

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 Re: Voltage regulator in reply to HFarmall, 05-28-2007 19:07:31  
HF, The cutout relay located inside the Voltage Regulator (1 of its 2 or 3 internal relays) may be sticking closed from carbon n burning. After shut down there should NOT be voltage present on the VR's ARM/GEN terminal but ONLY on the BAT terminal (it should always show voltage there) unless the cutout relay is indeed sticking. If so the genny gets hot and the battery can run down fairly soon. Another way to tell if its stuck is to remove or loosen the belt cuz if the cutout relay is stuck closed the genny will run like a motor. Try to remove the wire on the VR's ARM/GEN terminal and if she stops discharging (high - discharge on ammeter) then, the cutout relay may well be stuck or theres another problem causing it. Sometimes a light tap will unstick it temporarily but it needs attention SOON

John T

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gene bender

05-29-2007 20:23:33

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 Re: Voltage regulator in reply to John T, 05-28-2007 21:09:56  
superCs didnt have a cut-out they had a regulator

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john cub owner

05-28-2007 19:34:55

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 Re: Voltage regulator in reply to HFarmall, 05-28-2007 19:07:31  
Sounds like the contacts are sticking on the cutout relay inside the regulator. You might take the cover off and look for one that has a teat sticking out causing it to hang up.

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