Posted by Janicholson on January 24, 2008 at 06:22:56 from (199.17.6.122):
In Reply to: Negative Ground? posted by DanJ13655 on January 24, 2008 at 04:23:05:
I'll add to gene's good advice: Why not put it back to Pos ground. Take the battery out of the tractor and try to charge it (make sure it has full cells) ad water as needed. Then put the battery in with Positive ground (cables may need to be switched so they match the post size) good 00 gauge cables are needed to carry the amp loads (take that info to the bank) Once the battery is installed, with the tractor not started, and ignition off, do the polarizing thing.
For one second of time, use a #10 jumper wire to temporarily connect the BAT terminal on the VR to the ARM terminal on the VR . This (if the VR is connected) will polarize the field in the generator.
Then start it and it should charge.
If it does not, try this. With it running, use that jumper wire to connect the F terminal on the Generator (the smaller terminal) to a good ground. This should cause it charge. This test indicates a need for a voltage regulator, or more testing. John T has a great diagnosis procedure posted on this site in the search for box. Just type in John T charging system. Bob M has wiring diagrams posted. Good luck, JimN Please keep us informed.
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