Specifications and Features of the 1972 John Deere 4520 Tractor

The 1972 John Deere 4520 is a reliable workhorse in the field, offering impressive performance for its time. Powered by a 4-cylinder diesel engine, it generates around 63 horsepower, making it suitable for a wide range of agricultural tasks. The engine’s design emphasizes efficiency and longevity, backed by John Deere’s renowned engineering quality.

When it comes to transmission, the 4520 offers a 8-speed transmission, allowing operators to smoothly shift between gears and adapt to different working conditions. The combination of 2WD and 4WD options gives the tractor great flexibility, offering better traction and control, whether you’re working on flat terrain or tackling more challenging fields.

The hydraulics system is another standout feature. With a 3-point hitch and a lifting capacity of up to 3,300 lbs, the 4520 handles heavy-duty attachments with ease. This makes it an excellent choice for tasks like plowing, tilling, and hauling, all while maintaining stability and strength under load.

For operators, the comfort and visibility on the John Deere 4520 are improved by the open operator platform, providing better maneuverability and ease of access to controls. The standard tire size of 12.4-28 in the rear ensures a solid grip, enhancing its performance during both light and heavy-duty operations.

The 1972 John Deere 4520 is a solid choice for anyone looking for a reliable, versatile tractor that delivers power, control, and efficiency, backed by decades of trusted performance in agricultural machinery.

1972 John Deere 4520 Specs

The 1972 John Deere 4520 tractor offers a robust balance of power and versatility, making it suitable for various agricultural tasks. It is equipped with a 4-cylinder, 2.7L engine that delivers 62 horsepower, providing strong performance for both heavy-duty fieldwork and light utility tasks.

This tractor features a hydrostatic transmission, offering smooth and easy operation with a 12-speed range. The adjustable power steering ensures better handling, reducing operator fatigue during long hours of use. With a hydraulic lift capacity of 2,000 pounds, it can easily handle a wide range of implements.

Dimensions for the 4520 include a length of 136 inches, width of 70.8 inches, and a height of 89 inches. The wheelbase is 78 inches, which gives it good stability for both road transport and field operations. Its ground clearance stands at 14.8 inches, providing adequate space for uneven terrain.

The fuel tank capacity is 24 gallons, allowing extended operation without frequent refueling. The 4520 also has a maximum lifting capacity of 2,300 pounds at the rear, making it ideal for lifting and moving heavy equipment or materials on the farm.

For comfort, the tractor offers a simple, open operator station with a well-positioned seat and controls, allowing for easy access and visibility during work. The rugged design ensures durability, with parts readily available for maintenance and repair. Regular service ensures its longevity in demanding environments.

The 1972 John Deere 4520 remains a popular choice among tractor enthusiasts and collectors due to its solid construction, reliability, and sufficient power to handle various tasks effectively.

Engine Specifications and Performance of the 1972 John Deere 4520

The 1972 John Deere 4520 is powered by a 4-cylinder, liquid-cooled engine that offers reliable performance for various farming tasks. The engine, with a displacement of 202 cubic inches (3.3L), is built for durability and efficiency. Here’s a closer look at its key specifications and performance characteristics:

Engine Type: 4-cylinder, liquid-cooled diesel engine
Horsepower: 62 horsepower (at 2,300 RPM)
Torque: 168 lb-ft at 1,500 RPM
Fuel Capacity: 18.3 gallons
Compression Ratio: 17.5:1
Air Cleaner: Dual-element air cleaner for improved filtration
Starter Type: 12-volt electric starter
Cooling System: Forced circulation with a radiator and water pump

At 62 horsepower, the engine provides a solid balance between power and fuel economy, making the 4520 ideal for medium-duty agricultural tasks. With a maximum torque output of 168 lb-ft, it delivers strong pulling power and is capable of handling a variety of implements with ease.

The engine’s 18.3-gallon fuel tank ensures long operational hours before refueling, minimizing downtime during field work. A dual-element air cleaner helps maintain engine efficiency by filtering out dust and debris, ensuring clean air intake under all working conditions.

Performance-wise, the engine excels in both field and road applications, offering smooth operation and responsive throttle control. With the right maintenance, the 1972 John Deere 4520’s engine can continue delivering reliable service for years to come.

Transmission Types and Gear Ratios in the 1972 John Deere 4520

The 1972 John Deere 4520 is equipped with a synchro-range transmission that offers both versatility and ease of operation. This transmission type allows for smooth shifting between gears without the need for the operator to stop or disengage the clutch, providing a more seamless driving experience.

The gear ratios in the 4520 are well-suited for a variety of tasks, with 8 forward gears and 4 reverse gears. The standard gear ratios are designed to provide a balance between speed and torque, allowing for optimal performance in different working conditions. The gear ratios are arranged as follows:

1st Gear: 5.23:1
2nd Gear: 3.07:1
3rd Gear: 2.20:1
4th Gear: 1.62:1
5th Gear: 1.28:1
6th Gear: 1.03:1
7th Gear: 0.81:1
8th Gear: 0.64:1

The reverse gears have a similar range of ratios, ensuring adequate control and maneuverability in reverse. This configuration makes the 4520 highly adaptable to various tasks, from plowing fields to hauling heavy loads.

The 4520’s transmission setup provides excellent balance between speed for transport and torque for fieldwork, offering the operator the flexibility to choose the most efficient gear based on their specific needs. With this gear arrangement, the 1972 John Deere 4520 remains a reliable choice for farmers and operators looking for consistent performance across different applications.

Hydraulic System and Load Capacity of the 1972 John Deere 4520

The hydraulic system of the 1972 John Deere 4520 is engineered for both power and efficiency, handling demanding tasks with ease. It utilizes a two-stage pump, providing a total flow rate of 16.9 gpm (64 l/min). This high-flow system ensures smooth operation of various attachments, from loaders to plows, under heavy load conditions. The pressure relief valve is set at 2,100 psi, maintaining optimal function while preventing overloads.

The rear lift capacity of the 4520 reaches 2,700 lbs (1,225 kg), making it a robust choice for heavy-duty farming and landscaping tasks. The tractor’s front-end loader can lift up to 1,250 lbs (567 kg), allowing for the handling of medium-weight materials and equipment. The lift height of the front loader is 7.8 feet (2.38 meters), providing ample reach for most applications.

For ease of use, the hydraulic system includes a convenient remote valve setup, which allows operators to connect various implements without hassle. The PTO (Power Take-Off) system, running at 540 rpm, works seamlessly with hydraulic-driven equipment, boosting the 4520’s versatility. The tractor’s hydraulic efficiency and load capacity make it a reliable tool for large-scale agricultural operations and more specialized tasks like grading and excavation.