Voltage Regulator Connection Questions...
 

I tried asking this on Facebook and now I'm more confused than ever...maybe I will ask better here.

I picked up a new voltage regulator and wire harness for my 149, I was going thru the connections here at my desk and nothing appears to line up between the notes on the wires, the terminals on the regulator and the wiring diagram.


I have 3 wires coming out of the harness that are labeled "voltage regulator". The tag goes on to say Gray-"Batt", Blue-"A", Yellow-"F"

The diagram I have (from Technical Doc section) shows a Gray wire going to "B", Blue wire going to "G" and a Yellow wire going to "F"

The Voltage regulator has a "GEN" terminal, an "F" terminal, a "BAT" terminal and an "L" terminal


From this I'm fairly confident that the Yellow wire should go to the "F" terminal.
I think the Blue wire should be going to the "GEN" terminal and the Gray wire should be going to the "BAT" terminal, but not very sure about this...and I have no clue what "L" is for.

"L" terminal is for lights, most applications do not use it.
F= Field--- small terminal on S/Generator
Gen or A, --Armature, goes to larger terminal on S/generator.
Batt goes to bat terminal.
just make sure you go by labeling on the regulator lugs, not the location of them, as various manufactures locate them differently.

I've most often seen the word "load" associated with the L terminal. If your schematic doesn't use the L terminal just ignore it.

A wild guess for using the L terminal rather than tying all loads to the battery is the L may be regulated to about 12 volts, while the battery charges up over 14 volts. But I pulled that one from you-know-where.

According to Cub Cadet, the "L" stands for Load. That V/R was only used on the Original and 70/100 series tractors. All subsequent models did NOT have the L terminal.

Per the Factory Wiring Diagram

B = Grey Wire
G = Blue Wire
F = Yellow Wire
GRD = White Wire