John Deere has been a reliable and popular brand of tractors for over a century. The 1972 John Deere 110 model is no exception. As with any vehicle, it’s important to understand the wiring diagram in order to properly maintain and repair the unit. In this article, we’ll explore the wiring diagram for the 1972 John Deere 110, as well as frequently asked questions about the unit’s electrical system.
Wiring Diagram Overview
The wiring diagram for the 1972 John Deere 110 is relatively simple. The unit features a 12-volt battery and a starter motor, as well as a voltage regulator and alternator. The unit is also equipped with various safety switches, such as the seat safety switch, which prevents the engine from starting unless the operator is seated in the driver’s seat.
The wiring diagram is broken down into various circuits, including the starter circuit, the ignition circuit, and the charging circuit. Each circuit is color-coded and labeled to make troubleshooting and repairs easier.
Starter Circuit
The starter circuit is responsible for starting the engine. The circuit consists of the battery, starter motor, solenoid, and various switches. When the operator turns the key, the solenoid engages, allowing current to flow to the starter motor, which then turns the engine over.
If the engine fails to start, the operator should check the battery, starter motor, solenoid, and switches for faults.
Ignition Circuit
The ignition circuit is responsible for providing spark to the engine’s spark plugs. The circuit consists of the battery, ignition switch, spark plugs, and various wires and connections. When the operator turns the key, current flows to the ignition switch, which then sends current to the spark plugs.
If the engine fails to start, the operator should check the ignition switch, spark plugs, and wiring for faults.
Charging Circuit
The charging circuit is responsible for charging the battery and powering the unit’s electrical components. The circuit consists of the alternator, voltage regulator, battery, and various wires and connections. When the engine is running, the alternator produces electricity, which is then regulated by the voltage regulator and sent to the battery and electrical components.
If the unit’s electrical components fail to work, the operator should check the alternator, voltage regulator, battery, and wiring for faults.
Frequently Asked Questions
How do I know if my battery is fully charged?
To check the battery’s charge, use a voltmeter. The battery should read between 12.6 and 12.8 volts when fully charged.
What should I do if the engine won’t start?
If the engine won’t start, check the battery, starter motor, solenoid, and switches for faults. It’s also important to check the spark plugs and ignition switch.
What should I do if my electrical components aren’t working?
If the electrical components aren’t working, check the alternator, voltage regulator, battery, and wiring for faults.
Conclusion
The wiring diagram for the 1972 John Deere 110 is relatively simple, but understanding it is key to proper maintenance and repairs. By familiarizing yourself with the wiring diagram and troubleshooting techniques, you can ensure your unit remains in top condition for years to come.
| Color | Circuit |
|---|---|
| Red | Battery Positive |
| Black | Battery Negative |
| Yellow | Ignition |
| Green | Charging |
| White | Lighting |
