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Changed regulator now battery drains when parked

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I

Inwo

Member
I have a 641 with a 6v system and my voltage regulator wouldn"t stay polarized so I picked up a new one. The tractor runs better than ever now, however once I park it the battery drains out completely. I checked the wires and they"re on there correctly as far as I can tell and everything runs properly but for some reason there"s now an open circuit. Could this be a problem with the regulator? If so how do I test it?
 
Had the same problem last summer with a new regulator pulled the cover off and it had been dropped before the cover was installed and had bent the contacts until they were stuck shut.
 
You don't "polarize" a regulator. An "Open circuit" won't drain the battery. Look for maybe a short to ground circuit somewhere that is causing a battery drain. Easy to find-look at circuits that are "hot" with the key off.
 
hmm.. nothing you said makes sense.

you are not polarizing the reg.. but rather the genny.

and if you have a drain that kills the battery.. that's not an open circuit.. it's a closed circuit.

no current flows in an open circuit.

I'd say your cutout contacts are stuck or welded closed.. or otherwise plain old bad regulator.

rap it with a screwdriver handle and see what you get. oh yeah.. fix it now or the battery will be post toasty from the full discharge cycles... not to mention the generator will be damaged as it is the thing eating all the watts and trying to spin like an electric motor once you shut the tractor down...

soundguy
 
Sorry, it has been a long couple days. Apparently I'm thinking in electrical term reverse today. I'll give it a rap and see if that fixes it. It would be kind of annoying if I end up having to put a new regulator in again. I replaced it due to the charge light constantly coming on and the battery discharging. With the new one the light no longer comes on after I crossed the contacts to polarize the generator but apparently is still not working properly. Thanks for the help.
 
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