Wiring diagram:
http://s101.photobucket.com/albums/m46/farmallbob/Farmall%20Tractor%20Wiring%20Diagrams/?action=view¤t=03-6Voltcutoutanddistributor-rev-1.gif
(doesn't show the internal workings of the 4 position switch)
This has a diagram of the 4 position switch.
LHDB
L= low charge = field winding grounded through a resistor.
H = Field grounded directly.
D = High charge plus dim headlights.
B = High charge plus bright headlights on.
http://www.tractorshed.com/cgi-bin/gallery/pieces_pic.cgi?pic=http;//www.tractorshed.com/gallery/pieces/p50454.jpg&firstrec=1&lastrec=15&Parameter=&mode=All&what=pieces
SO: what I get out of this is that high charge grounds the field.
so if I ground the field, there should be no damage at low-med engine
RPM.
AND: It appears that the battery can be connected to the armature.
ONE OTHER THOUGHT: Somewhere I heard years ago that you can turn a
generator into a motor by hooking up the + and - a certain way. Does
anyone now how to do that? I could easily test the loose generator
that way. and even the one on the engine should make a noticeable
effort to turn the engine over. (for a second or so.)
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