GSTROM99(at)aol.com wrote:
>
> What's all this talk about polarizing the generator?
Apparently, from what I understand from reading about it, a generator
depends on residual magnetism in the field core. However, these fields
must be in the correct polarization. When repairing the charging system
or if the battery was installed backwards, there might be some residual
magnetic fields in the iron core of the generator and regulator. To make
sure these fields are extinguished (or in the correct polarity), one
must "polarize" the generator/regulator using the battery and a jumper
wire. I have read about warnings that if not performed, the generator
and/or regulator will be burned out in the first few minutes of
operation. It's a very simple procedure, all you have to do is
momentarily touch a jumper wire between the generator (Arm. or Gen.)
terminal and the battery terminal on the regulator. The jumper should be
connected for a fraction of a second. If you leave it on any longer, you
will burn up the points in the voltage relay. Now I have also read about
changing the Alpine's ground from the original positive to negative
ground. Lastly, it says to polarize the system by jumping the A1 and F
terminals. The battery terminal is really "A" and "A1" just loops from A
to the starter switch, so it's all the same. The "F" is the just the
field terminal, but the Alpine has the field grounded inside the
generator (opposite to American cars), so we want to jumper to the "F"
to get current through the field windings.
Jan
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