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Re: Re: Re: Re: Alternator Conversion Wiring Diagram
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Posted by Bob M on January 27, 2000 at 11:55:12 from (192.232.120.194):
In Reply to: Re: Re: Re: Alternator Conversion Wiring Diagram posted by Dave on January 27, 2000 at 10:50:45:
Dave - You pretty much got it. If you can start with a hand crank, you must have magneto ignition. (A mag is designed to give firing voltage at hand crank speed, and it operates completely independent of the charging system). But with coil/distributor, there's no current available until the generator is spinning fast enough to generate enough volts to cause the cut-out relay to pull in. This generally occurs at RPM's a little faster than normal idle. Thus you CAN start a distributor equipped tractor without the battery, but you gotta pull the tractor and get the motor spinning at fast idle RPM's before it'll start. (Been there, done that...) BTW tractor generators are not permanent magnet devices - they have wound field poles. Residual magnetism in the poles will generate a small voltage in the armature when it starts to spin. This in turn strengthens the field poles causing armature voltage to quickly build up to rated value as the rpms increase.
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