In Reply to: Re: 6 volt generator posted by Keith(CA) on November 11, 2012 at 14:11:04:
Keith, it isn't all that difficult........that is if the flow of INCORRECT "info" would stop!
"Does the B type require any polarization, if the battery is disconnected. {YES} {With a qualifier: just because battery is disconnected does not mean re-polarization is necessary. It is disconnected by your cut out contacts each & EVERY time the engine stops turning the generator!} {Re-polarization is needed when the gen output polarity is opposite the polarity of the tractor electrical system (they need to match) or when you disassemble/re-assemble the generator, or drop it off garage roof or anything that might destroy the residual magnetism of the field pole pieces (iron).}
The A type does require polarization by shorting the field terminal to the hot side
of the battery terminal, if the battery is disconnected, because if the current in the field coil and armature could end up in opposite directions and the generator would have no voltage output." {Both of these statements are Absolutely WRONG! To polarize that one, you ground the field & apply battery voltage to the ARM terminal (if already installed, the field will automatically be grounded via the VR, so need only apply batt voltage to ARM terminal)} Next: {It will have an output, not "no voltage output"........if you don't polarize correctly,then you have a 50/50 chance of wrong generator output polarity for correct match to your tractor electrical system (see my other responses)}. Over thinking is making this difficult. Just follow the instructions.
OH, one more confusion factor is in thinking that they are all the same OR that what someone else has is the same as what you have. NOTE: Ford used at least 8 (that is EIGHT) different generators on N tractors between 1939 and 1952!!!!!!
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