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Faunsdale, AL | On the regulator.
All regulators have a connection from the BAT(tery) that is used to send voltage to the batteries when charging. This wire usually runs from the solenoid terminal where the battery cable connects to the starter. In the case of the JD 24 volt system, I believe it runs through a circuit breaker mounted near the starter so there is some protection built into the system. Check the PDF's in the link above. No, this is wrong, the circuits to the ignition switch go through the circuit breakers, not the circuits from the regulator BAT and generator A2 terminals
On the regulator, next to the BAT terminal is a GEN(erator) terminal or sometime it's called ARM(ature) because that's where the wire from the generator armature terminal goes. That is where the generator outputs its voltage once it builds up internally as you rev the engine. Once voltage builds up, the points of the regulator cutout relay close and current flows from the generator to the batteries and electrical system.
When the cutout relay is OPEN (engine stopped when you have just installed parts or batteries etc), no battery voltage should be going to the generator (lets forget for a moment about the hard wired connection that exists on a 24 volt JD system to the A2 terminal on the generator!) To get it to generate, you need to run a bit of current (correct polarity) through the generator armature and field to make a weak magnetic field that will allow it to build up when you start the engine) That is what you do when you short from the BAT terminal to the GEN terminal next to it, just making a circuit so current can flow through the generator for a second. Just a spark is all it takes.
Edited by ccjersey 3/17/2012 22:40
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JD 4010 batterys
