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6 volt cub farmall generator

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Gale Roberts

03-06-2008 21:19:31

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I would like to know what the maximum voltage output should be for a early cub 6 volt generator which has just the cut-out and no regulator except for the high-low position switch to control the resistor in the field circuit. Someone told me it should be 17+ volts that does not seem right to me. also what should the maximum Amps output be? Thanks for any advice on this..... .....Gale

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Gale Roberts

03-07-2008 10:37:40

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Re: 6 volt cub farmall generator in reply to Gale Roberts, 03-06-2008 21:19:31

Thanks a lot fellows I really appreciate the information about the out-put of the 6 volt generator.....Gale

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John T

03-07-2008 05:26:15

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Re: 6 volt cub farmall generator in reply to Gale Roberts, 03-06-2008 21:19:31

I agree with ny friend Bob. It truly DEPENDS ON THINGS LIKE: (First, the open unloaded output voltage dont mean all that much, its what it maintains into/across a battery that counts)

The condition of the battery (age, state of charge, design),,,,, ,,,,, the condition and quality of the LHBD switch especially its wiring and its GROUND,,,,, ,,the adjustment of the third brush if a 3 brush genny,,,,, ,,the general condition of the genny.

The setting resting voltage of a good n charged battery should be near 6.3 volts but when coupled to a good charging system at RPM raise to the 6.5 to 7 or so range again depending on the Low/High switch position n the other things above.

John T

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Bob M

03-07-2008 05:05:51

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Re: 6 volt cub farmall generator in reply to Gale Roberts, 03-06-2008 21:19:31

Gale - The answer is "it depends":

- Open circuited (nothing connected to the ARM terminal), and with the FLD grounded, you can will see anywhere from about 15 - 25 volts between the ARM terminal and ground.

- However with the wiring connected normally, the FLD terminal grounded (ie. with the LHDB switch set at "H"), and with a fully charged battery, 7.5 - 8.0 volts will be the max.

----

Maximum current output is 12 - 14 amps depending on the setting of the 3rd brush and upon generator temperature (warmer generator = fewer amps)

Note - All the above assume the engine's running at maximum governed RPM...

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James Williams

03-07-2008 04:05:19

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Re: 6 volt cub farmall generator in reply to Gale Roberts, 03-06-2008 21:19:31

If the field circut is completely grounded it will probally put out 17 volts,but it was not intendent to operate that high

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gene bender

03-07-2008 02:40:21

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Re: 6 volt cub farmall generator in reply to Gale Roberts, 03-06-2008 21:19:31

That would be a good way to burn it up. It was made to put around 7.5 without burning up. The cut-out and that gen will work just fine for a CUB as it just dont take that much to turn over a 60 cu in engine.

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delawhere

03-07-2008 02:23:10

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Re: 6 volt cub farmall generator in reply to Gale Roberts, 03-06-2008 21:19:31

just had mine bench checked and i think the guy said it was around 9 volts. hooked her up and shes charging. don't really know exactly what it should be.

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