Posted by Janicholson on November 30, 2013 at 17:39:11 from (74.60.94.18):
In Reply to: farmall h 6 or 12 v posted by gary in neb. on November 30, 2013 at 16:55:32:
Several issues are presented in your post: The cutout relay is OK to use. If the tractor has lights it should have a 4 position light switch. If it has no lights, it won"t have a light switch. If it is a voltage regulator (they look alike and the difference is critical) it will have a three position light switch. To check which it has take the top off of it and look to see if it has only one relay coil and set of points, or two. If one it is a cutout. The cutout connects and disconnects the generator from the battery so the battery will be charged when the gen is making voltage, and then disconnect when it is stopped or near stopped to prevent the battery from discharging through the generator. (It lets the smoke out when that happens, and discharges the battery) The cutout is automatic in operation. The charge rate of a cutout system with no lights is adjusted to a low charge setting by adjustment of gen output. Moving the third brush in the generator farther away or closer to the fixed brush changes output to the battery. Usually this is about 5 total amps charge at about 7 volts (no lights on the tractor at all) The cutout has a F terminal that allows the field to be grounded through a fixed resistor (single low charge rate) If the tractor has lights, it will have a 4 position switch LHDB. Low charge, High charge, Dim lights, and Bright lights. The light switch has a separate switch that controls the charge rate. On L (full CCW on the switch knob) the generator field runs through a wire wound resistor on the light switch to ground through the switch housing. On all other settings the generator is set to full charge rate with straight grounding of the Field. The F terminal on the cutout is not used. A wire runs from the light switch to the F terminal on the gen. I can give a lot more info if needed. Let us know what you have first. Jim
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