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Clooney
06-01-2002 18:27:13
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Re: Generator Question on a 1951 A. in reply to Joe, 05-31-2002 15:44:56
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Joe, start with the obvious, is the belt tight & the correct width?
~You didn't give engine RPM's so I will just have to guess at what 1/2 throttle is on your tractor. ~If you have a 3 brush generator it might be as simple as adjusting the third brush for higher generator output, [loosen the 3rd brush clamp screw & move the brush in the direction of armature rotation]
~If that doesn't do the trick, or you don't have a 3 brush generator, you might have a 6 volt generator on your "A", [with the correct 12 volt regulator it will still charge that way, but the output will be lower & the RPM will have to be higher], or the generator output is low due to brush wear, corrosion, shorted field etc., or the cut-out relay in the regulator is set too high. ~To eliminate the cut-out relay causing a problem for testing purposes .. start the tractor & run at 1/2 throttle, then run a jumper wire from the [BAT] to the [GEN] terminal on the regulator, then lower the throttle setting until the charging goes to just above the + side of "0", if the RPM is substantially lower, you probably need a cut-relay adjustment [my recommendation would be a new regulator].
~If none of the above helps you, you could have the wrong sized pulley, defective generator, 1/ 2 throttle isn't very fast on your "A", or ?
~If you can't tell if you have a 6 or 12 volt generator, see if you can find a number on it & post the number..... .....
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