12 Volt Conversion Wiring Diagram Farmall H

Are you looking to convert your Farmall H tractor from 6 volts to 12 volts? If so, you’ll need a wiring diagram to make sure you do it correctly. The good news is that the process isn’t too complicated, and with the right guidance, you can complete the conversion in a few hours. In this article, we’ll provide you with a detailed wiring diagram and some frequently asked questions to help you through the process.

Why Convert to 12 Volts?

Many Farmall H tractors were originally designed to run on a 6-volt electrical system, but some people choose to convert them to a 12-volt system. There are several advantages to doing so:

  • A 12-volt system provides better starting power, especially in cold weather
  • You can use more modern equipment and accessories that require 12 volts
  • 12-volt batteries are easier to find and less expensive than 6-volt batteries
  • It’s easier to diagnose and fix electrical problems on a 12-volt system

Now that you know why you might want to convert your Farmall H to 12 volts, let’s take a closer look at the wiring diagram.

The Wiring Diagram

The 12-volt conversion wiring diagram for the Farmall H is relatively simple. You’ll need a few basic tools, a copy of the wiring diagram, and some patience. Here’s what you’ll need to do:

Step 1: Disconnect the Battery

Before you start working on the wiring, make sure you disconnect the battery. This will help prevent any accidents from happening while you work.

Step 2: Replace the Generator

If your Farmall H has a generator, you’ll need to replace it with a 12-volt alternator. The mounting brackets and pulleys should be the same, so the swap should be relatively straightforward.

Step 3: Install the Regulator

Next, you’ll need to install a 12-volt voltage regulator. You can mount it on the firewall or somewhere else convenient. Be sure to follow the instructions that come with the regulator to make sure you install it correctly.

Step 4: Update the Wiring

Now it’s time to update the wiring. You’ll need to replace the wires that go from the generator to the regulator, as well as the wires that go from the regulator to the battery. You may also need to replace some of the other wires in the system, depending on their condition. Refer to the wiring diagram to make sure you connect everything correctly.

Step 5: Replace the Battery

Finally, you’ll need to replace the old 6-volt battery with a new 12-volt battery. Make sure it’s the right size and type for your Farmall H.

FAQs

Q: Do I need to replace the starter?

A: Not necessarily. The starter should be able to handle the increased voltage, but you may want to have it checked by a professional just to be safe.

Q: Can I still use my old lights and other accessories?

A: Yes, you should be able to use most of your old equipment and accessories as long as they’re 12-volt compatible. If they’re not, you’ll need to replace them.

Q: Will a 12-volt system damage my Farmall H?

A: No, a 12-volt system won’t harm your tractor as long as it’s installed correctly. Just make sure you follow all the steps and use the right parts.

Q: Can I do the conversion myself?

A: If you have some basic mechanical and electrical skills, you should be able to complete the conversion yourself. But if you’re not comfortable working with electricity, it’s best to hire a professional.

Q: How long does the conversion take?

A: The conversion can take anywhere from a few hours to a full day depending on your level of experience and the condition of your tractor.

Conclusion

Converting your Farmall H to 12 volts can provide many benefits, but it’s important to do it correctly to avoid any problems. By following this wiring diagram and the tips outlined in the FAQs, you should be able to complete the conversion successfully. Good luck!