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Farmall H No Charge


 
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Sparky70
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PostPosted: Tue Oct 13, 2020 5:16 pm    Post subject: Farmall H No Charge Reply to specific post Reply with quote

Old Farmall H setting for some years. Had to clean carb good, new gas ethanol free, new battery, points, condenser, wires, and plugs, runs good but charging system k-put. All 6V as off the floor new.

Not too versed on generators and voltage regulators. No idea where to start. Would appreciate some "here and where" to start. Thanks folks and I for one am well pleased with this forum.
 
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gene bender
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PostPosted: Tue Oct 13, 2020 5:42 pm    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

with engine off polarize the gen then with engine running use a jumper wire to the field on the gen to ground if
that makes it charge the reg is bad if it does not charge the genis bad or you have a bad ground even he lite sw
need to have a good ground
 
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Sparky70
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PostPosted: Tue Oct 13, 2020 6:05 pm    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

Thanks Gene, appreciate the post. Would you please explain how you would polarize the gen. 6v positive ground. Thanks
 
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Sparky70
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PostPosted: Tue Oct 13, 2020 6:08 pm    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

Does this sound correct:
To polarize a generator on a tractor having a Delco 6V positive ground system or a Lucas 6V or 12V positive ground system, attach one clip to the A terminal on the generator. With the other clip, briefly for only a split-second (or a spark occurs) tap the negative ( - ) terminal on the battery. To polarize a generator on a tractor having a Delco 12V negative ground system, attach one clip to the A terminal
 
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leroy in ne
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PostPosted: Tue Oct 13, 2020 6:26 pm    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

Hopefully John T will chime in or someone that has the info will post a link to his Charging system testing posts. This would have every thing you would need to know
about generators on engines.
 
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John T
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PostPosted: Wed Oct 14, 2020 3:26 am    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

Sparky, if you work through my Troubleshooting Procedure it can help you diagnose the cause of non charging and how to determine if its a
Generator or a Voltage Regulation or wiring or ground problem etc


https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=ttalk&th=2060825

John T
John Ts Charging Troubleshooting

 
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Sparky70
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PostPosted: Wed Oct 14, 2020 3:50 am    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

That should do it, thanks to all that replied. Suffice to say I have some work to do. No plans to convert to 12v, it starts fine of 6V when battery fully charged, just gotta get it charging again

big thank you
 
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TedinNE
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PostPosted: Wed Oct 14, 2020 8:03 am    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

No sure how old your H is. If it had the cutout with the hi lo charge on the light switch. Make sure the cover surface to the box is clean. It has to ground from the cover to the box.
 
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Sparky70
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PostPosted: Mon Oct 19, 2020 4:27 am    Post subject: Re: Farmall H No Charge Reply to specific post Reply with quote

John T, very professionally accomplished. I read and reread, never really understood how to trouble shoot 6v charge system.

So, if I understand correctly first order of business is to verify amp meter. I will:

1) see if meter deflects if I switch on ignition and/or lights

2) if not, take my meter and verify presence battery on BOTH amp meter terminals.

To polarize gen:

flash jump a hot wire starter post direct to the Gens ARM post to get the spark.

This H was charging when parked, inside approx 5 years ago. No battery installed. I just installed new 6V.

I know I can put my meter on the battery with tractor running and should read 7 + volts if charging. But if I just want to very gen out put where do I connect my meter on the gen?

If it is there I missed it, but dont I need to polarize VR?

Thanks a ton for help,SPary
 
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