Posted by Bob Nelson on November 01, 2009 at 18:11:21 from (76.113.226.72):
Did a search but couldn't find an answer. I'm hoping someone has the patience to answer some novice questions. I'm studying the electrical diagram for a 6 volt 9N; single pole (1940). 1) what is the purpose of the cutout relay? Is that to keep from discharging the battery when the tractor is shut off? 2) The resistor block looks like it has 3 connections. Battery hot to center pole (thru ammeter) that also connects to light switch and ignition switch? 3) When the ignition switch completes the circuit, it looks like it activates the ignition system through a resistor? What is the purpose of the resistor? 4) I've owned this tractor for 15 years and never tried this, but it looks like the starter would turn the engine over even with the ignition key off? True? It also looks like you could turn the lights on even without the ignition on. Can't believe I've never tried either one!! HA! If there is a good site that answers these questions, just point me there. Thanks for any help.
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