1949 Farmall Cub Tractor Wiring Diagram For

If you’re looking for the wiring diagram for a 1949 Farmall Cub tractor, you’ve come to the right place. This diagram will help you understand how to wire your tractor’s electrical system, which is essential to getting the best performance out of your machine. In this article, we’ll walk you through the different parts of the Farmall Cub tractor’s electrical system and what you need to know to wire it up correctly.

The Electrical System of a 1949 Farmall Cub Tractor

The Farmall Cub tractor has a relatively simple electrical system compared to modern tractors. It consists of a battery, an ignition switch, a starter motor, a generator or alternator, and various switches and wires that connect everything together. The battery provides the electrical energy to power the tractor’s lights, starter motor, and other electrical components.

The ignition switch is what turns the tractor’s electrical system on and off. When you turn the key to the “on” position, the switch connects the battery to the rest of the electrical system. When you turn the key to the “off” position, the switch disconnects the battery from the system.

The starter motor is what turns the engine over when you start the tractor. It receives power from the battery and uses that power to turn the engine over until it starts. Once the engine is running, the generator or alternator takes over and provides the electrical energy to keep everything running.

Wiring Diagram for a 1949 Farmall Cub Tractor

Here is the wiring diagram for a 1949 Farmall Cub tractor:

Component Wire Color Connector Wire Gauge Function
Battery Red Positive 6 or 12 AWG Positive Terminal
Battery Black Negative 6 or 12 AWG Negative Terminal
Ignition Switch Green Starter 16 AWG Starter Motor
Ignition Switch Red with White Stripe Accessory 16 AWG Accessory Power
Ignition Switch Red Main 16 AWG Main Power
Generator or Alternator Red Output 10 AWG Output
Generator or Alternator Black Ground 10 AWG Ground
Light Switch Red with Black Stripe Lights 16 AWG Lights
Light Switch Black GND 16 AWG Ground

Battery

The battery is the heart of the electrical system on the Farmall Cub tractor. It provides the power for all of the electrical components, including the starter motor and lights. The positive terminal of the battery should be connected to the starter, while the negative terminal should be grounded to the tractor frame.

It’s important to choose the right size wire for your battery connections. For the positive connection, use a 6 or 12 AWG wire, while for the negative connection, use a wire of the same size.

Ignition Switch

The ignition switch is what turns the tractor’s electrical system on and off. It has three positions: off, on, and start. The switch connects the battery to the rest of the electrical system when in the on or start position.

The ignition switch has three wires connected to it. The wire that is connected to the starter motor should be green and 16 AWG. The wire that provides power to the accessories should be red with a white stripe and 16 AWG. The wire that provides power to the rest of the system should be red and 16 AWG.

Generator or Alternator

The generator or alternator is what provides the electrical energy to keep the tractor’s electrical system running once the engine is started. It has two wires connected to it: a red wire for the output and a black wire for the ground.

The red wire that goes to the output should be 10 AWG, while the black wire that goes to the ground should also be 10 AWG.

Light Switch

The light switch is what turns the tractor’s lights on and off. It has two wires connected to it: a red wire with a black stripe for the lights and a black wire for the ground.

The red wire with the black stripe that goes to the lights should be 16 AWG, while the black wire that goes to the ground should also be 16 AWG.

FAQ

Q: Why is the wiring diagram important?

A: The wiring diagram is important because it shows you how to wire the tractor’s electrical system correctly. Wiring it incorrectly can cause electrical problems and other issues, and can even be dangerous.

Q: Can I use different gauge wires than what’s listed in the wiring diagram?

A: It’s best to use the wire gauges listed in the wiring diagram. Using wires that are too small can cause them to overheat and possibly start a fire, while using wires that are too large can be unnecessary and make the electrical system harder to work with.

Q: What should I do if I’m not sure how to wire my Farmall Cub tractor?

A: If you’re not sure how to wire your Farmall Cub tractor, it’s best to consult a professional mechanic or electrician. They can help you understand the electrical system and wire it correctly.

Q: How often should I check the wiring on my Farmall Cub tractor?

A: It’s a good idea to check the wiring on your Farmall Cub tractor periodically, especially if you notice any electrical problems or if the wiring looks worn or damaged. Checking the wiring regularly can help prevent problems and keep your tractor running smoothly.

Q: Can I use this wiring diagram for other models of Farmall tractors?

A: This wiring diagram is specific to the 1949 Farmall Cub tractor. While it may be similar to other models of Farmall tractors, it’s best to consult the wiring diagram specific to your model for the most accurate information.

Conclusion

Wiring your Farmall Cub tractor’s electrical system can seem daunting, but by following the wiring diagram and using the correct wire sizes and connectors, you can ensure that your tractor runs smoothly and without electrical problems. It’s important to periodically check the wiring for wear and damage to prevent issues from arising. By taking care of your tractor’s electrical system, you can enjoy years of reliable performance and get the most out of your machine.