Hi guys,

My 706 hasn't been charging lately. It has a delco alternator (flat prongs & tested good) wired as follows:

R1 connector to Light Blue wire going to middle prong of voltage regulator by column.

F2 connector jumpered to BAT connection on alt.

The large post connection from alternator to starter/battery (red).

Voltage Regulator: top yellow is connected to top terminal, but not connected at all near the alternator (no place for it). The bottom connection(BAT) on V.R. is unhooked but the a large red wire is nearby and hot.

I did get it to charge by taking the Light blue connection loose from the V.R. and touching it to the red wire but I'm not sure that's the correct way to do it.

Is the V.R. necessary? Is there a resistor block somewhere that I need? Wiring suggestions?

thanks

I take it you have a Delco with the 2 terminals for field & sense on the back of the alternator as opposed to the internal regulator models having the 2 connections on the circumference of the case.
Also separate regulator.
Looking at the regulator there are 4 prongs [spade connectors] on the right side of the regulator. The top lug goes to the switch [turn on]. The middle 2 lugs need not be used, but connect to the idiot light. The bottom lug should connect to the field or right of the 2 terminals on the alternator. The left terminal on the alternator doesn't need connected, but deals with the idiot light also.
The large terminal on the alternator goes directly to the ammeter if it is there or to the starter battery terminal on the solenoid. Make sure there is a good ground connection from alternator to regulator & also frame.
Hope this helps.

Was just thinking, maybe it just needs brushes.

Your referring to a regulator that has three terminals leads me to believe that your tractor originally was equipped a generator system instead of the 10DN alternator. The regulator terminals will be screw type rather that flat blade type.

The 10DN alternator would have used a four flat bladed terminal regulator. The 10DN alternator has the spade terminals coming out the back. The terminals are labeled R and F.

Since you also referred to numbers 1 and 2 I am going to assume that the alternator you have is a 10SI. The 10SI can be identified by the spade terminals coming out the side at the back. The 10SI has an internal regulator.

If you indeed have a 10SI alternator all you need to do is remove the blue wire from the regulator and connect it to a switched source of power. It should have either a resistor or light in the circuit.

The excite circuit will work with just a direct 12 volt source feeding it but if the alternator output circuit wire should become open or disconnected from the alternator the charging current will flow through it. The wire is too small to carry that much current. The resistor, or light acting as a resistor, will protect the wiring.

Owen is correct. I have the 10si alternator. I found the fault in my wiring and hooked the light blue wire up to a switched connection behind a light. Thanks for the help.