While installing the generator, I discovered a mistake in the factory manual.  The manual I have is a reprint of a 1965 Kaiser manual SM-1002-R6 covering the CJ-2A through the CJ6 plus the DJ-3A.  This manual is widely available from many different vendors.

The problem was how the terminals were labeled on an illustration of the Auto-Lite voltage regulator.  Of the three terminals, the BAT and ARM terminals were reversed.  Elsewhere in the same manual, the schematic for the entire vehicle shows the correct routing for the Auto-Lite regulator wiring, but none of the terminals are labeled.  I could see the correct labels on several regulators in my Pile-O-Parts.  A vintage automotive textbook also contradicted the suspect Kaiser manual illustration.  I gave myself a brain cramp trying to figure out exactly what would happen if you followed that incorrect illustration, but suffice to say it wouldn't work correctly.  It looks like it would prevent the generator from charging and would drain the battery with the engine off.

Perhaps Auto-Lite did make some regulators like in the illustration, so check carefully for stamped markings.  The markings were on the base under the terminals.  Because of the mounting angle on the fender, you will either need to use a mirror or unbolt the regulator to see them.

That same page also showed a Delco-Remy voltage regulator.  I do not know if those terminals are labeled correctly, so any additional information is welcome.  If your regulator's name tag is missing, it should be the same brand as the generator itself.  If both of those tags are missing, you can compare the arrangement of the three coils under the cover.  Aftermarket replacement regulators were (and still are) widely available, and they may not have the identical coil arrangement as the stock units, so this method of identification is not infallible.  Please note that some brands of regulators will have the label GEN (Generator) instead of ARM (Armature) but it is the same thing with a different name.

As difficult as it can be to determine which terminal is which on the regulator, the generator is much easier.  There should be three terminals, only two of which are insulated.  The uninsulated terminal is obviously the ground.  The larger of the two insulated terminals is the armature (ARM) connection.  The smaller insulated terminal is the field (FLD) connection.  More details about the generator terminals are in the Polarization section.

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