Between the VR"s ARM and BAT terminal is basically a normally open Cutout Relay. Once the genny is running and the ARM voltage is higher then BAT, that relay closes so the gennys output can get to and charge the battery. If it charges well with that jump but not otherwise, the VR may be bad orrrrrrrrrrr the genny isn"t producing enough voltage to latch the relay closed (may still show a small charge in by pass mode). If you dead ground the gennys FLD post that puts genny in full max charge condition so try that first n see if the relay pulls in and she charges???? If so then but NOT otherwise, the genny is okay so the VR must be the problem. Also, the VR needs that same good ground for that to work also INSURE A GOOD VR GROUND.
The VR needs a good ground to work as far as the Field control portion also, be sure it ahs one or try a grounding jumper to it
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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