Posted by John T on May 26, 2009 at 18:52:10 from (66.244.97.31):
In Reply to: Voltage Regulator posted by SuperHPuller on May 26, 2009 at 18:17:46:
If she charges fine when you dead ground the gennys FLD post but NOT otherwise, the genny itself is okay so the problem is EITHER:
The VR is bad,,,,,,,,,The VR isnt compatible with your ground i.e. Pos or Neg,,,,,,,,,the VR isnt well grounded,,,,,,,,,the wires bad from FLD on Genny to the VR's FLD post.
On that 4 terminal VR it wires ARM/GEN to gennys ARM post,,,,,,FLD on VR to gennys FLD post,,,,,,,BAT wires up to Load side of ammeter,,,,,,LOAD terminal sends hot battery voltage to loads like lights n ignition. On many 4 terminal VR's the BAT LOAD FLD are together while the ARM/GEN is often on the bottom or one side by itself.
You should Polarize (if needed) the Generator BEFORE you start the tractor cuz if the gennys is polarized opposite the battery you may damage the VR
If I convert from a cutout relay and light switch charge control system to a VR I adjust the third brush for max charege if its a 3 brush adjustable genny.
Insure the VR is compatible with your ground,,,,,,,,,,,,Insure the VR is well grounded,,,,,,,,Polarize the Generator,,,,,see what happens
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