B voltage regulator

fixerupper · Nov 30, 2013

The voltage regulator on my B is some kind of a conversion regulator my IH dealer sold me to take the place of the cutout. The regulator has a long skinny resistor screwed on to the field terminal, going straight up and the field wire from the genny is screwed onto the resistor mid-way up on the resistor. The regulator quit working and I've been playing around with it trying to breathe a little more life in to it. The genny charges fine when the field terminal is grounded with a jumper wire. Do any of you know anything about this setup? Is this just a standard 6V regulator with a resistor screwed onto the field terminal or what? I have not taken the resistor off of the field terminal and tried bolting the field wire from the genny straight to the field terminal on the regulator yet. Ran out of time. If it's this resistor that's bad and the regulator is still good do any of you guys know what value of resistor will work? Lots of words for a simple question. LOL Jim

teddy52food · Nov 30, 2013

Try running a ground from the gen. to the base on the reg. If that doesn't work, by-pass that resister. If it charges too high, you will have to find one to cut it down. If nothing works, maybe the gen quit.

fixerupper · Nov 30, 2013

Thanks for the suggestion. I did ground the genny and the regulator so that's eliminated. When I grounded the field terminal on the genny I grounded it to the genny and then to the regulator and made sparks both ways and the genny charged. I just plain ran out of time to take that resistor off. Maybe Monday. Tomorrow's tied up. Just wondering if anyone else has had anything to do with a setup like this. It has a belly mower and will start and run darned near for half a summer on one charge of the battery but I'd still like to get it working. Jim

gene bender · Nov 30, 2013

Some regs are setup like that. What is the DelcoRemy# on your gen. If its an original the last three#s will be either 355 or 423 if your gen has a different gen you do have the wrong reg. By the way you didnt hook the wire from the field to the lite sw as that wire is not used with that reg. You do need to make sure of your gen # if you are going to use that reg.

fixerupper · Nov 30, 2013

This is an original style genny as far as I know. It's a rebuilt that replaces the factory one. I do have the wire to the light switch disconnected. Come to think of it, this rebuilt one probably doesn't have a tag. Thanks for giving me the numbers. I'll check it out. Jim

Janicholson · Nov 30, 2013

An external resistor on a regulator with a movable contact to adjust charge rate, is a bit unusual. A real regulator will control voltage internally, and be set for a specific voltage to charge correctly. Show us a picture of the VR with the top removed and the "resistor" in view. Jim

souNdguy · Nov 30, 2013

is it merely a bias resistor between field and ground? if so.. that's common. keeps some field current going on an A circuit reg when field contactgs pop open.

if it's a series resistor in line withthe field tab.. methionks that is a 1 size fits all a circuit reg, adn it's bials resistor is of too low a value and they are adding in some series resistance.

if that is so. play with it a bit. if you have some low value power resistors.. substitute them and experement.. see what you get.

keep in mind with field contacts colsed.. bias resistors between feild and ground are bypassed.. but anything in series with the genny field and the reg will not be bypassed.

fixerupper · Nov 30, 2013

(quoted from post at 18:44:48 11/30/13) is it merely a bias resistor between field and ground? if so.. that's common. keeps some field current going on an A circuit reg when field contactgs pop open.

if it's a series resistor in line withthe field tab.. methionks that is a 1 size fits all a circuit reg, adn it's bials resistor is of too low a value and they are adding in some series resistance.

if that is so. play with it a bit. if you have some low value power resistors.. substitute them and experement.. see what you get.

keep in mind with field contacts colsed.. bias resistors between feild and ground are bypassed.. but anything in series with the genny field and the reg will not be bypassed.

t is in line with the field tab and field terminal on the genny. This thing never did charge more than 5 amps or maybe a little more when it did work. Never could keep up with the lights but we don't mow at night anyway. I've also had thoughts, as a last ditch effort, of running a resistor between the field tab and ground via a toggle switch and keeping an eye on the ammeter. Cobbling like that isn't something I generally allow on this farm so don't tell anyone. LOL Jim

souNdguy · Nov 30, 2013

i'd bypass that series filed resistor and see what ya got.

I HAVE run a SPDT center off toggle with 2 different resistors.. one high, one low in a genny system before. that gave you high and low charge. it does work. is pretty much the basis for the lamp switch tickle resistor setups.

at this point.. can't hurt to test a few things.

fixerupper · Nov 30, 2013

I'll see what I can come up with on Monday. Thanks. Jim

souNdguy · Dec 2, 2013

post back what ya find.

B voltage regulator

fixerupper

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teddy52food

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fixerupper

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gene bender

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Janicholson

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fixerupper

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