John Deere 8440 Tractor Specifications and Performance Overview
The John Deere 8440 is a powerhouse designed to handle tough tasks. With its 8.1L 6-cylinder turbocharged engine, this tractor delivers a solid 190 horsepower, making it ideal for heavy-duty fieldwork. The 8440 offers excellent fuel efficiency, allowing operators to maximize productivity without frequent refueling.
The tractor’s transmission system is equally impressive. Featuring a 18-speed Powershift transmission, it allows smooth shifting across a range of speeds. This enhances control over various tasks, especially in demanding conditions like plowing or hauling.
The hydraulic system of the 8440 stands out with a maximum flow rate of 29 gpm, providing ample power for handling large implements. With a lift capacity of up to 8,000 lbs, the John Deere 8440 is well-equipped for heavy lifting, ensuring reliable performance for commercial farming operations.
Overall, the John Deere 8440 combines power, reliability, and efficiency. Its robust build and advanced features make it an excellent choice for farmers and operators looking to tackle demanding tasks with confidence.
John Deere 8440 Tractor Specifications
The John Deere 8440 tractor is equipped with a 466 cubic inch (7.6 L) turbocharged six-cylinder engine. This engine delivers a maximum output of 150 horsepower at 2,200 RPM, making it well-suited for demanding agricultural tasks.
The tractor’s transmission is a 16-speed power shift, offering smooth gear transitions and versatility in various field conditions. This feature enhances operator control, ensuring efficient performance across a wide range of speeds.
With a 4WD drive system, the 8440 ensures optimal traction and stability, even in challenging soil types. It is capable of towing heavy loads, with a maximum drawbar pull of around 15,000 pounds.
The hydraulics system provides a maximum flow rate of 25.5 gallons per minute, making it effective for operating high-demand implements. The tractor’s rear hitch can lift up to 10,000 pounds, ensuring compatibility with a wide range of implements.
Its fuel tank holds 130 gallons, allowing extended operation in the field without frequent refueling. The 8440’s total weight is around 22,000 pounds, which contributes to its stability and handling on uneven terrain.
Engine Performance and Power Output of John Deere 8440
The John Deere 8440 is powered by a robust 6-cylinder, 466 cubic inch (7.6L) engine, delivering reliable power for heavy-duty tasks. This engine is designed to maximize fuel efficiency while maintaining high performance. With a maximum output of 160 horsepower at 2,200 RPM, the 8440 ensures a steady power supply for demanding agricultural work.
The engine features a turbocharger that enhances its ability to deliver more power without compromising fuel economy. The turbocharged engine provides smooth acceleration and optimal performance under load, making it ideal for both fieldwork and road transport.
The John Deere 8440 also includes an advanced cooling system, which helps in maintaining optimal engine temperatures even during long hours of operation. This allows the engine to work efficiently in varying conditions, from intense heat to cold climates.
The torque output at 1,400 RPM is particularly noteworthy, offering excellent pulling power, which is especially beneficial in tough soil conditions or when operating heavy implements. This engine ensures that operators can complete tasks with ease and minimal downtime.
| Specification | Value |
|---|---|
| Engine Type | 6-cylinder, Turbocharged |
| Displacement | 466 cubic inches (7.6L) |
| Maximum Horsepower | 160 hp @ 2,200 RPM |
| Peak Torque | 465 lb-ft @ 1,400 RPM |
| Fuel Capacity | 80 gallons |
Overall, the engine performance of the John Deere 8440 provides exceptional power, reliability, and efficiency, making it a great choice for heavy-duty agricultural tasks.
Hydraulic System and Capabilities of John Deere 8440
The hydraulic system of the John Deere 8440 plays a key role in its overall performance, offering robust power for a wide range of tasks. With a maximum flow rate of 35 gpm (132 l/min), it delivers the necessary pressure to operate implements efficiently. The system utilizes a closed-center design, providing more consistent performance when running multiple hydraulic functions simultaneously.
For lifting and towing, the John Deere 8440 features a Category 3 three-point hitch system, capable of handling up to 9,000 lbs (4,082 kg). This makes it suitable for both heavy-duty agricultural tasks and more precise work that requires stable lifting capabilities. The hydraulics offer high lift capacity with minimal loss in efficiency, ensuring effective handling of implements like plows, cultivators, and planters.
Additionally, the tractor’s remote hydraulics, with a standard of three remote valves, support a variety of attachments, providing operators with flexibility when working with different types of equipment. The valves are easy to access and operate, which simplifies attachment changes and increases productivity during field operations.
The hydraulic pressure system also features a pressure relief valve that ensures the safety of the components by preventing excessive pressure buildup. This, combined with John Deere’s reliable construction, minimizes downtime and maintenance needs, making the 8440 a dependable choice for long working hours.
In summary, the hydraulic system of the John Deere 8440 enhances its performance across various tasks, making it a versatile machine that meets the demands of both large and small-scale operations. Whether handling large implements or performing precise lifting tasks, the hydraulic system supports the tractor’s impressive capabilities without compromising on efficiency or safety.
Transmission Features and Handling of John Deere 8440
The John Deere 8440 features a power shift transmission system, offering smooth gear changes without interrupting engine power. This system allows operators to shift gears on-the-go, improving efficiency and productivity in the field. The 8-speed transmission offers a broad range of speeds, catering to different tasks, whether it’s heavy fieldwork or transport. Additionally, the transmission integrates a torque converter, optimizing power delivery and reducing engine strain during operation.
The handling of the 8440 is further enhanced by its mechanical front-wheel drive (MFWD) system. This feature improves traction and stability on uneven terrain, making it ideal for a variety of farming environments. With a robust and responsive steering mechanism, operators can maneuver the tractor with ease, even in challenging conditions. The transmission’s smooth operation complements the handling capabilities, allowing for precise adjustments and control, especially when working with mounted or towed equipment.
Overall, the transmission system of the John Deere 8440 plays a key role in ensuring consistent power delivery and smooth operation, allowing operators to focus on their tasks without worrying about gear shifting interruptions or handling difficulties.