The John Deere 7520 tractor is a versatile and powerful machine, renowned for its reliability and performance in modern agricultural settings. With its robust build and advanced features, including multiple transmission options and compatibility with the John Deere 741 Loader, it excels in a wide range of tasks, from field work to material handling. Its emphasis on operator safety, comfort, and efficiency makes it a preferred choice among farmers seeking productivity and reliability in their operations. Despite potential maintenance requirements, the 7520 remains a steadfast companion on the farm, embodying the enduring legacy of John Deere in agricultural machinery.
| John Deere 7520 Specifications |
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| Model Years | 2003-2007 |
| Series | 7020 Series |
| Type | Row-Crop Tractor |
| Factory | Waterloo, Iowa, USA |
| Power |
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| Engine | 150 hp (111.9 kW) |
| PTO (claimed) | 125 hp (93.2 kW) |
| Drawbar (tested) | 110.88 hp (82.7 kW) |
| PTO (tested) | 143.97 hp (107.4 kW) |
| Engine Detail |
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| Manufacturer | John Deere PowerTech 6068HF475 |
| Fuel | Turbocharged diesel |
| Type | 6-cylinder, liquid-cooled |
| Displacement | 414 ci (6.8 L) |
| Bore/Stroke | 4.19×5.00 inches (106 x 127 mm) |
| Power | 150 hp (111.9 kW) |
| Rated RPM | 2100 |
| Idle RPM | 850-2250 |
| Operating RPM | 1300-2100 |
| Torque | 454 lb-ft (615.6 Nm) |
| Torque RPM | 1503 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
| Starter Power | 4.1 hp (3.1 kW) |
| Oil Capacity | 22.2 qts (21.0 L) |
| Coolant Capacity | 29.6 qts (28.0 L) |
| John Deere PowrQuad Transmission |
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| Type | Partial power shift |
| Gears | 16 forward and reverse |
| Oil Capacity | 59.2 qts (56.0 L) |
| Note | Features four power shift speeds (1-4) in four ranges (A-D) with a left-hand reverser. This transmission provides versatility and ease of shifting, allowing operators to quickly adjust to changing terrain and load conditions. |
| John Deere AutoQuad Transmission |
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| Gears | 24 forward and reverse |
| Oil Capacity | 59.2 qts (56.0 L) |
| Note | The AutoQuad transmission offers a wider range of gears compared to the PowrQuad, providing finer control over speed and torque. With its 24-speed configuration, operators have more options to optimize performance for specific tasks and operating conditions. |
| John Deere Infinitely Variable Transmission (IVT) |
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| Gears | Infinite forward and reverse |
| Oil Capacity | 69.6 qts (65.9 L) |
| Note | Available with MFWD (Mechanical Front Wheel Drive) only, the IVT transmission offers seamless and continuously variable speed control. This allows for precise adjustment of ground speed without the need for traditional gear shifting. The IVT transmission is ideal for applications requiring constant speed adjustments, such as planting and harvesting. |
| Hydraulics |
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| Type | Closed-center PFC |
| Valves | 4 |
| Pump Flow | 26.7 gpm (101.1 lpm) |
| Tractor Hitch |
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| Rear Type | II/IIIN |
| Rear Lift | 7450 lbs (3379 kg) – 8700 lbs (3946 kg) |
| Power Take-off (PTO) |
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| Rear PTO | Independent |
| Clutch | Electro-hydraulic |
| Rear RPM | 540/1000 (1.375) |
| Front PTO | Independent |
| Front RPM | 1000 |
| Electrical |
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| Ground | Negative |
| Charging System | Alternator |
| Charging Amps | 115 – 150 |
| Battery CCA | 850 |
| Battery Volts | 12 |
| Tires |
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| Ag Front | 14.9R28 |
| Ag Rear | 18.4R38 |
| Dimensions |
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| Wheelbase | 104.3 inches (264 cm) |
| Length | 203.3 inches (516 cm) |
| Width | 96 inches (243 cm) |
| Height | 114.1 inches (289 cm) |
| 4WD Clearance (Front Axle) | 20.5 inches (52 cm) |
| Weight |
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| Operating | 13280 lbs (6023 kg) |
| Max Capacity | 22035 lbs (9995 kg) |
| Max Drawbar | 4955 lbs (2247 kg) |
| Max Front Axle | 9695 lbs (4397 kg) – 16315 lbs (7400 kg) (with loader) |
| Max Rear Axle | 17185 lbs (7795 kg) |
| John Deere 741 Loader Specifications |
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| Height (to pin) | 172.5 inches (438 cm) |
| Clearance, dumped bucket | 139.3 inches (353 cm) |
| Dump reach | 38.2 inches (97 cm) |
| Dump angle | 58.9° |
| Clearance, level bucket | 167 inches (424 cm) |
| Reach at ground | 113.4 inches (288 cm) |
| Breakout force (at pin) | 7779 lbs (3528 kg) |
| Breakout force (at 800mm) | 5913 lbs (2682 kg) |
| Breakout force (bucket) | 7172 lbs (3253 kg) |
| Lift to full height (at pin) | 4617 lbs (2094 kg) |
| Lift to full height (at 800mm) | 3527 lbs (1599 kg) |
| Lift to 1.5m (at pin) | 6259 lbs (2839 kg) |
| Lift to 1.5m (at 800mm) | 4966 lbs (2252 kg) |
| Bucket width | 73 inches (185 cm), 96 inches (243 cm) |
John Deere 7520 tractor overview
The John Deere 7520 tractor is a formidable machine designed to meet the demands of modern agriculture. With its robust build and powerful engine, it excels in various farming applications, from field work to material handling.
Key Specifications
Engine: 150 horsepower John Deere PowerTech 6068HF475 turbocharged diesel engine.
Transmission: Offers three options – PowrQuad, AutoQuad, and Infinitely Variable Transmission (IVT), each providing different gear ranges and speed control capabilities.
Hydraulic System: Closed-center PFC system with four valves and a pump flow of 26.7 gpm.
Hitch: Rear Type II/IIIN hitch with a lifting capacity of up to 7450 lbs.
Loader Compatibility: Compatible with the John Deere 741 Loader, boasting impressive breakout forces and lift capacities.
Advantages
Powerful Engine: The 7520’s 150 horsepower engine delivers ample power for a wide range of tasks, ensuring efficient performance.
Versatile Transmission Options: The availability of PowrQuad, AutoQuad, and IVT transmissions provides flexibility to match the tractor’s performance to specific tasks and terrain.
Hydraulic System: The closed-center PFC hydraulic system offers precise control and responsiveness, enhancing efficiency during implement operation.
Loader Compatibility: With the option to mount the John Deere 741 Loader, the tractor gains versatility for material handling tasks, increasing its utility on the farm.
Disadvantages
Complexity: The availability of multiple transmission options may increase complexity, requiring operators to familiarize themselves with each system’s operation.
Maintenance: The tractor’s sophisticated systems may require specialized maintenance and diagnostics, potentially increasing maintenance costs over time.
Common Problems
Transmission Troubles: While the transmission options offer versatility, they may also be prone to issues such as slipping or shifting problems if not properly maintained.
Safety Features
Seatbelt: Helps secure the operator in place, reducing the risk of injury during sudden stops or accidents.
Operator Presence Controls: Ensure that the tractor’s operation is only possible when the operator is properly seated and engaged with the controls, preventing accidents caused by unintended movement.
Other Features
Comfortable Cab: The tractor’s cab offers a comfortable and ergonomic environment for the operator, with features such as air conditioning, adjustable seating, and intuitive controls.
Advanced Monitoring: Many 7520 models come equipped with advanced monitoring systems that provide real-time data on engine performance, fuel efficiency, and other key parameters, allowing operators to optimize tractor operation.
In summary, the John Deere 7520 tractor is a powerful and versatile machine designed to tackle the challenges of modern agriculture. With its advanced features, robust construction, and emphasis on operator safety and comfort, it remains a popular choice for farmers seeking efficiency and productivity in their operations. However, operators should be mindful of potential maintenance requirements and familiarize themselves with the tractor’s various systems to ensure optimal performance and longevity.
