Like was said below, look at the voltage regulator. Take it off the tractor and look on the mounting tabs or for a stamp on the back side. When I bought my H someone had put in a 12V batt and hooked it up neg ground. Some of the new wiring harness was put in wrong also like the wires were switched on the gen among other things. I had to go through everything before I got that mess fixed but it works great now on 6V pos ground just like it was designed to do when new. It was way worth taking the time to do it right and is now one of the few tractors at the local shows with a 6V and generator still in it. Plus I use it almost everyday and it gives no problems.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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