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Re: BobM Help :)
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Posted by John T on September 22, 2006 at 08:42:45 from (66.244.90.5):
In Reply to: BobM Help :) posted by scotty on September 22, 2006 at 05:05:29:
Scotty, I also want Bob M to get here m straighten you out (go with him or Jim versus me, Im rustyyyyyy on IHC) but in the meantime, I bet I can add to the confusion lol, heres why. I used to buy n sell n trade n work on allllll brands of tractors in the seventies when I was as a used tractor dealer n can tell you I saw allllllll kinds of jury rigs and conversions on electrical systems till who tied the pup so Im always reluctant to say for sure how one might be wired REGARDLESS how it was original. That being said, heres how n why I think wiring gets cornfusing or messed up when you buy ready made harnesses or Voltage Regulators etc. On tractors that were originally equipped with 4 pole (BAT FLD LOAD ARM) Voltage Regulators, many got changed to 3 pole (BAT ARM FLD) and vice versa a 4 can be made to work where a 3 was originally or a 3 can work where a 4 was originally...... For a 4 pole (BAT FLD LOAD ARM) VR system there would be TWO wires up to the dash, one from the VR's L terminal to feed the light switch power and another to wire to the load (NOT to battery/starter) side of the ammeter, thats the charge wire from the BAT terminal on the VR. On a 3 pole (BAT ARM FLD) VR theres ONLY ONE wire up to the dash, the charge wire from BAT on the VR to the ammeters load side terminal..... Soooooo if the harness has two wires up to the dash, Ima thinkin one (larger) is from the VR's BAT terminal to the ammeters load terminal while the other is from the L terminal (ONLY if a 4 pole VR) to feed voltage to the light switches input terminal Howeverrrrrrrrrrr if you only have a 3 pole (BAT ARM FLD) VR,,,,,,,,then you only need ONE wire from the VR up to the dash, the one from BAT on the VR to the ammeters laod terminal......IN THAT SITUATION the light switch would receive its input voltage by a wire from the ammeters Load terminal (same terminal that wires to BAT on VR) over to the switches input NOW ARE YOU MORE CONFUSED LOL Jim has ya well covered on the VR to genny wiring, so now all you gotta do is wire the VR according to if its a 3 or 4 pole per the above. If a 3 pole ONE WIRE from VR's BAT terminal up to dash (ammeter),,,,,,,, If a 4 pole, 2 wires from VR up to dash, BAT on VR to ammeter and LOAD on VR to light switches input. To add to the cornfusion on many 4 pole VR's the BAT FLD LOAD terminals are side by side or close together, while the ARM terminal may be off by itself on the bottom. Regardless what you have, it can be made to work if you understand the theory, and theres also the older 2 wire cutout relay genny systems where there were also two wires up to the dash, one from BAT on the cutout relay to the ammeter and the other from the gennys Field post to the light switch woooooo hoooooooooo lol Best wishes n God Bless John T
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