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CA Genorator

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thomas

09-03-2002 19:26:47




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My Ca would not tern over well got it runing charged the batery then every thing seams fine except the amp meter was reading just on the neg side took it to the local auto/tractor parts store generator and regulator checked good I checked the wiring we put all new wiring harnes in 2 or 3 years ago has not had this problem untill know wiring connections were not tight did not fix it when I Gronded the feld it pegged the amp meter positive side what is the next step

Thanks thomas

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thomas

09-05-2002 18:57:42




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 Re: CA Genorator in reply to thomas, 09-03-2002 19:26:47  
The tractor is 6 volt it has regulator not cut out I have the lights run of the L terminal we replaced all the wiring with a diagram that does not have the 3 position switch The light switch does it ground threw the side of the box that it & the amp meter is fixed to if I cant titen those litel screws up enough would it work to run a wire to the batery

Thanks agin



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steve

09-04-2002 16:16:53




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 Re: CA Genorator in reply to thomas, 09-03-2002 19:26:47  
Tom, the original tractor had a 6 volt generator with a simple "cut out relay" not a voltage regulator. the "A" terminal goes to the cutout and switches the generator on and off when motor is runnning or off. Your porblem is the "F" terminal. This terminal as you say will go full charge when grounded--GOOD--. The "F" wire goes to the light switch which has a resistor on it. The resistor in inline between the F wire and ground of the tractor. THis makes it charge 3 amps when "low charge" is needed. When you pull out the light switch or have the lights on, it bypasses the resistor and grounds the F wire and you get full charge. As the guys below said, either you have a bad ground on the switch, or your resistor on the light switch is bad. Chech by jumpering the light switch case to a GOOD ground, also check continuity of the resistor with a volt meter. You can buy new switches if needed. I will send you a drawing.

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Steve in N.J.

09-04-2002 09:41:12




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 Re: CA Genorator in reply to thomas, 09-03-2002 19:26:47  
Tom,
Make sure your battery isn't going bad. Might have a bad cell or two. Disconect it from the tractor and do a draw test on it. If it drops when the draw is put on, battery needs to be replaced. It could be drawing on the charging system that's why the ammeter reads in the discharge side while running. Also, make sure the headlight/charging switch is grounded well. If it gets rusty in the ammeter box it looses it's ground. Just a couple other things to check..... .. Steve B.

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Butch (OH)

09-04-2002 11:45:28




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 Re: Re: CA Genorator in reply to Steve in N.J., 09-04-2002 09:41:12  
Tom, Steve's advise about the ground problem at the switch and box is excellent as long as you still have the original three brush generator and cut out relay. If you have the two brush generator W/regulator your ground problem is at the regulator/generator mountings (assuming the regulator is mounted on the generator. Also if you have the three brush set up, did you have the switch pulled all the way out for high charge?

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Bryan Smith

09-04-2002 08:39:13




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 Re: CA Genorator in reply to thomas, 09-03-2002 19:26:47  
Is this a positive ground system or have you changed it over to negative ground? Is it 6 volt or have you upgraded to 12 volt?

Grounding the field makes it charge at max amperage as you know. Could easily be some rust on the connections between the Field terminal at the generator or at the regulator. Also, most regulators need to be grounded to work well. I always run a ground wire from a bolt holding the generator on to a good ground location on the tractor - or the grounded side of the battery - just in case.

Did you polarize the generator after you hooked up the battery? If the generator's not polarized it won't charge.

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