Hello all,
I am currently in the middle of converting my 1955 international 300 utility from a 6v system to 12v. Alternator is delco 10SI 3- wire. I have found a lot of wiring diagrams posted here and other places, but they only seem to show the schematics using the original 2 pole ignition switch. At some point in this tractor's history, the original ignition switch was replaced with a D-R keyed 4 pole switch, with posts for IGN, SOL, BAT, and ACC. I have a few questions about how this changes the wiring setup.
1) Most diagrams I have found show BAT on the alternator hooked to the ammeter, terminal 1 on alternator hooked to the run position on the 2 pole ignition switch with the wire going from there to the positive post on the ignition coil. Where will alternator terminal 1 hook up to the 4 pole ignition switch? I assume the IGN post connects to the positive post on the coil.
2) Same diagrams show wire from the other side of the ammeter running a wire to the solenoid. I assume with a 4 pole ignition, the SOL post is for a wire running to the solenoid. Does the ammeter wire still run to the solenoid, or is just supposed to get hooked directly back to the + battery terminal?
3) Same diagrams show the headlight switch hooked to the ammeter on the same side that the alternator wire hooks to. Should the ACC post on the ignition be used for this instead?
4) Where does the cigarette lighter wire fit into all of this? Is it ok to hook it to the ammeter for an always- hot lead? or should it just go straight to the battery?
5) Do I still need to install a diode in the wire going from the ignition switch to the coil? Or is a keyed ignition switch sufficient to prevent backflow from the alternator when turning off the tractor?
Thanks alot for any info you guys can provide.
I am currently in the middle of converting my 1955 international 300 utility from a 6v system to 12v. Alternator is delco 10SI 3- wire. I have found a lot of wiring diagrams posted here and other places, but they only seem to show the schematics using the original 2 pole ignition switch. At some point in this tractor's history, the original ignition switch was replaced with a D-R keyed 4 pole switch, with posts for IGN, SOL, BAT, and ACC. I have a few questions about how this changes the wiring setup.
1) Most diagrams I have found show BAT on the alternator hooked to the ammeter, terminal 1 on alternator hooked to the run position on the 2 pole ignition switch with the wire going from there to the positive post on the ignition coil. Where will alternator terminal 1 hook up to the 4 pole ignition switch? I assume the IGN post connects to the positive post on the coil.
2) Same diagrams show wire from the other side of the ammeter running a wire to the solenoid. I assume with a 4 pole ignition, the SOL post is for a wire running to the solenoid. Does the ammeter wire still run to the solenoid, or is just supposed to get hooked directly back to the + battery terminal?
3) Same diagrams show the headlight switch hooked to the ammeter on the same side that the alternator wire hooks to. Should the ACC post on the ignition be used for this instead?
4) Where does the cigarette lighter wire fit into all of this? Is it ok to hook it to the ammeter for an always- hot lead? or should it just go straight to the battery?
5) Do I still need to install a diode in the wire going from the ignition switch to the coil? Or is a keyed ignition switch sufficient to prevent backflow from the alternator when turning off the tractor?
Thanks alot for any info you guys can provide.