Re: alternator conversion farmall m

Posted by Janicholson on August 17, 2013 at 05:43:12 from (74.60.94.18):

In Reply to: alternator conversion farmall m posted by butch49 on August 16, 2013 at 20:32:13:

I would follow this diagram I made. The original VR is not needed. The coil polarity is important. The bulbs must be changed, and the battery must be negative ground. Reversing the amp meter is also to be sure it reads correctly. Use new wires as shown and keep the diagram printed out in the manual. You do not state which tractor, so the ignition switch is shown as the Farmall H type. The starter is shown as one on a later tractor the intent is to connect that fuse link to the battery wire at the Start switch what ever typr it has. The small wire shown going to the starter and connecting to the ballast resistor is for resistor bypass if the starter relay/solenoid has that "I" terminal. A second diode can be used in series with that wire to allow full starting voltage bypass if you have a mechanical switch to the starter. If so the diode is placed so starter motor current from the switch can go the the ballast resistor but not vrom the resistor to the starter. Or the wire can be left out all together.
Jim

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