6V charging system

Dave H (MI)

Well-known Member
I don't know if I asked this last fall or not when I was wiring the tractor (1957 Loboy, 6V w/genny) but I know I hit on a few questions I had. I am cleaning up, applying decals, and about to put the hood on. Question...how do I know for certain that my genny and VR are functioning properly? Currently it is wired as follows: Fron left, 1st VR terminal is not being used. 2nd VR terminal has the green/gray wires that go to the dash. 3rd VR terminal is connected to the near post of the genny. Bottom VR terminal is going to the other genny post. I believe in a post last fall I was told to wire it this way even though it is not technically correct for the VR.

The old Ford systems with a cutout like on my 2N are very simple to check with a VO meter and you can adjust the charge rate with a screwdriver and see the change on the ammeter. This system is a little harder to understand and I could use some help. Are there any diagnostics I can run with my meter to help determine all is well and I won't be pulling it all apart again?

I had charge the battery before starting the tractor and it has been running off and on all week without any sign of drain. Maybe two dozen starts total.
 
Take a volt meter set on dc volts and measure your charging voltage across the battery terminals with the engine at 1/2 throttle or better. Should be around 7.2 volts to charge a 6 volt battery. Hal
 
Hope you got it rite but field to field gen to Arm on the gen and batt to the ammeter 4th term should say L and that goes to the lite sw fuse .
 

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