“I recently moved to a location with 20 acres. I was in need of a tractor. After meeting new neighbors and friends, I mentioned that I needed a tractor. One of my new friends said he would sell me his tractor and gave me his address where I went to see it.
This picture says it all. The shed was probably being held up by the wisteria growing through every window, wall, and door. Peeking out the front was this amazing find. A 1959 Case, model 210B. The owner drove it in the shed 6 years prior and had not touched it since.
I put it on a trailer and took it home. I put a carburetor kit in it, the 6-volt (positive ground) generator was rebuilt, and a new battery was installed. It started up and continues to run better each day.
It is a wonderful tractor and a rare model. It has power steering, low and high range, and is easy to drive.”
If the tractor is a positive ground system it will have to be switched to a negative ground polarity.
If equipped with lights change the bulbs to 12 volt. You might consider a 0-60 amp gauge as most generator gauges stop at 30 amp.
Attach 1-wire from the threaded stud on the rear of the alternator and run it to the amp gauge, run a separate wire from the other amp gauge terminal to the positive side of the battery. When initially starting the tractor rev the engine to approximately 850 rpm to excite the internal regulator, the system should start charging.
The Pros and Cons of switching from a 6-volt system to a 12-volt system.
A 12-volt system makes the tractor start easier and the alternators are able to keep a battery fully charged after just a short time running, on most tractors by switching to a 12-volt system you can also use a hotter ignition coil which helps to burn the gas we have today.
The downfall to switching to a 12 volt system is the tractor will now have an alternator which on many tractors is in full view, and some people frown on this look as it doesn't look like the original generator (some generators can be converted to 12 volt check with your local starter-generator shop for more info). The other problem is the starter is now spinning faster so the drive can prematurely wear the teeth on it and the flywheel ring gear.
Make sure you have all your facts in line before you start a conversion.