Dead grounding the gennys Field post makes it charge at its max capacity subject to any third brush adjustemnt n the gennys condition if its a 3 brush genny. However, if you have the lights on I doubt its gonna pump enough left over (after ignition if a coil system n lights) amps into the battery to overcharge it and/or outgas excessive or boil over acid in a period of up to a few hours or so. Its long times at fast RPM with no lights that a dead field grounded genny might possibly overcharge the battery and/or boil it over or outgas too badly.
If you have the LHBD light switch n 2 wire cutout relay system make sure the gennys FLD post is wired correct up to a good switch n that the switch is well grounded in the event she charges fine when dead grounded but NOT otherwise. However if you have a full fledged Voltage Regulator n it charges ONLY when you dead ground the field, the VR may be bad or its not grounded good or the wires bad from FLD on VR to gennys FLD post.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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