| Manufacturer | John Deere |
| Price | - |
| Model | 3520 |
| Equipment Type | Compact Utility Tractors |
| Factory | Augusta, Georgia, USA |
ENGINE DETAIL
The John Deere 3520 features a Yanmar 3TNV84T turbocharged diesel engine, delivering 37 hp with a notable torque of 75.4 lb-ft at 1560 RPM, enhancing its performance for heavy-duty tasks. Its direct injection fuel system and high compression ratio (18.5:1) contribute to improved fuel efficiency and power output, making it ideal for applications in agriculture and landscaping. However, the relatively small oil and coolant capacities may require more frequent maintenance checks, particularly under heavy operational conditions.
| Description | Yanmar 3TNV84T turbocharged diesel 3-cylinder liquid-cooled |
| Displacement | 91.5ci / 1.5L |
| Bore/Stroke | 3.3x3.54inches / 84x 90mm |
| Power | 37hp / 27.6kW |
| Fuel system | direct injection |
| Compression | 18.5:1 |
| Rated RPM | 2600 |
| Torque | 75.4lb-ft / 102.2Nm |
| Torque RPM | 1560 |
| Starter volts | 12 |
| Oil capacity | 5.1qts / 4.8L |
| ROPS Coolant capacity | 5.6qts / 5.3L |
| Cab Coolant capacity | 7.4qts / 7.0L |
JOHN DEERE 3520 ENGINE
The John Deere 3520 is equipped with a Yanmar 1.5L 3-cylinder diesel engine, delivering efficient power for compact tasks with a balance of fuel economy and performance. Its compact size makes it ideal for small farms or landscaping applications, while the 4WD option enhances traction in challenging terrains. However, potential challenges include limited horsepower for larger implements and a smaller hydraulic capacity compared to larger tractor models.
| Description | Yanmar 1.5L 3-cyl diesel |
TRANSMISSIONS OVERVIEW
The John Deere 3520's 12-speed partially synchronized hydrostatic transmission with power shuttle enables smooth directional changes without clutching, enhancing operator efficiency in varied tasks. This setup provides excellent control in tight maneuvering situations, though it may have limitations when operating at higher speeds or demanding maximum power output. Overall, the combination is ideal for applications such as landscaping and small farm work, where versatility and ease of use are paramount.
| Description | 12-speed partially synchronized with power shuttle hydrostatic |
TRANSMISSION 1
The John Deere 3520 features a PowrReverser transmission, providing 12 forward and reverse gears—ideal for precise control during field operations. The three-range system, while partially synchronized, requires the tractor to be stationary for range shifts, which can affect workflow efficiency. Notably, the left-hand reverser allows for seamless directional changes without using the clutch, offering an advantage in applications requiring frequent reversals, like loader work.
| Transmission | PowrReverser |
| Type | partially synchronized with power shuttle |
| Gear | 12 forward and reverse |
| Clutch | 112.5mm wet disc |
| Description | Standard transmission, not available with cab. Four speeds with three ranges and reverser lever. Speed changes are synchronized with clutch pedal. Tractor must be stopped, and clutch used, to shift range. Left-hand reverser may be used without clutching |
SPEEDS 1
| Description | With 11.2-24 rear tires |
TRANSMISSION 2
The John Deere 3520 features a hydrostatic Sauer-Danfoss eHydro transmission with infinite forward and reverse capabilities across three ranges, providing precise control for various applications. Key advantages include the standard cruise control and LoadMatch, which maintains engine RPMs under load, enhancing productivity. However, operators must stop the tractor to shift ranges, which can be a limitation in dynamic working environments requiring frequent gear changes.
| Transmission | Sauer-Danfoss eHydro |
| Type | hydrostatic |
| Gears | infinite forward and reverse (3-range) |
| Description | Controlled by two foot pedals and range shift lever. Tractor must be stopped before shifting ranges. Cruise control standard. SpeedMatch allows maximum speed to be limited. MotionMatch allows acceleration rate to be set. LoadMatch allows engine RPMs to be set, tractor will adjust speed to maintain RPMs |
SPEEDS 2
| Description | With 11.2-24 rear tires |
TRANSMISSION 3
The John Deere 3520 features an eHydro AutoHST hydrostatic transmission, offering infinite forward and reverse gears across three ranges for exceptional maneuverability. The automobile-style control simplifies operation, allowing operators to adjust engine RPM and transmission speed seamlessly with a single foot pedal, enhancing user experience. However, while this system provides ease of use, it may lack the direct power management precision found in traditional gear transmissions, which could be an advantage in demanding applications.
| Transmission | eHydro AutoHST |
| Type | hydrostatic |
| Gears | infinite forward and reverse (3-range) |
| Description | AutoHST provides an automobile-style control to the eHydro transmission. A single foot pedal controls engine RPMs and transmission speed, with a column-mounted shifter to select forward, neutral, or reverse |
JOHN DEERE 3520 TRANSMISSIONS
The John Deere 3520 features a 12-speed partially synchronized hydrostatic transmission with a power shuttle, allowing for smooth directional shifts and improved control in various field conditions. This design enhances operator comfort and efficiency by minimizing the need for clutch operation during loading and unloading tasks. However, operators should be aware that the partially synchronized transmission may require more attention during high-speed applications to prevent gear clash.
| Description | 12-speed partially synchronized with power shuttle hydrostatic |
MECHANICAL
The John Deere 3520 tractor features four-wheel drive for enhanced traction and stability, making it suitable for varied terrains. The wet disc brakes provide superior stopping power and longer lifespan compared to dry brakes, while the optional cab enhances operator comfort and weather protection. A consideration for users is that the two-post foldable ROPS may limit headroom in certain applications, but the power steering facilitates easier maneuverability, especially in tight spaces.
| Description | Four-wheel drive Wet disc brakes Two-post foldable ROPS. Cab optional |
| Steering | power |
CAPACITY
| ROPS Fuel | 13.5gal / 51.1L |
| Cab Fuel | 11.8gal / 44.7L |
| Hydraulic system | 6.8gal / 25.7L 6.3gal (with gear transmission) / 23.8L |
HYDRAULICS
| Type | open center |
| Capacity | 6.8gal / 25.7L 6.3gal (with gear transmission) / 23.8L |
| Valve | 5 |
| Pump flow | 8.6gpm / 32.6lpm |
| Total flow | 13.9gpm / 52.6lpm |
TRACTOR HITCH
| Rear Type | I |
| Rear lift | 2530lbs / 1147kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540 |
| Mid PTO | optional |
| Mid RPM | 2100 |
JOHN DEERE 3520 TIRES
The John Deere 3520 tractor offers versatile tire options for agricultural, lawn/turf, and industrial applications, allowing for optimal performance across various terrains. Its agricultural rear tires (11.2-24) provide good traction for fieldwork, while the lawn/turf configuration (41x18LL-16.1) enhances maneuverability on softer ground. However, the choice of tire type impacts load capacity and stability; therefore, selecting the appropriate configuration based on intended use is crucial for maximizing efficiency and minimizing potential operational challenges.
| Ag front | 7-14 |
| Ag rear | 11.2-24 |
| Lawn/turf front | 25x10.5LL-15 |
| Lawn/turf rear | 41x18LL-16.1 |
| Industrial front | 27x8.5-15 |
| Industrial rear | 43x16-20 |
DIMENSIONS & TIRES
The John Deere 3520 tractor features a compact wheelbase of 68 inches (172 cm), enhancing maneuverability in tight spaces, ideal for landscaping or small farm operations. Weighing between 2,900 to 3,570 pounds, it offers stability during operation but may require additional ballast for optimal performance in heavy-duty tasks. The tire specifications — 7-14 front and 11.2-24 rear — provide a balance between traction and flotation, although the tractor may struggle in extremely wet conditions due to lower ground clearance.
| Wheelbase | 68inches / 172cm |
| Weight | 2900 to 3570 pounds |
| Front tire | 7-14 |
| Rear tire | 11.2-24 |
ELECTRICAL
| Ground | negative |
| Charging amps | 40/55 (optional) / 75 (with cab) |
| Battery CCA | 500 |
| Battery volts | 12 |