| Manufacturer |
John Deere |
| Price |
- |
| Model |
8520T |
| Equipment Type |
Agricultural Crawler Tractors |
| Factory |
Waterloo, Iowa, USA |
OCED TRACTOR TEST 1802 2
| Description |
Diesel 16-speed crawler//Link: OCED Tractor Test 1802 file/PTO performance/Drawbar performance/Gear 9 used for power test./Gear 5 used for pull test. |
| Max power |
219.23 hp/163.5 kW |
| Fuel use |
14.9 gal/hour/56.4 l/hour |
| Power at rated engine speed |
255.96 hp/190.9 kW |
| Max pull |
27,960 lbs/12682 kg |
JOHN DEERE 8520T POWER
| Engine (gross) |
305 hp/227.4 kW |
| Engine (net) |
295 hp/220.0 kW |
| Engine (max) |
335 hp/249.8 kW |
| PTO (claimed) |
255 hp/190.2 kW |
| Drawbar (tested) |
219.23 hp/163.5 kW |
| PTO (tested) |
291.67 hp/217.5 kW |
ENGINE DETAIL
The John Deere 8520T, with its turbocharged 6-cylinder diesel engine and a displacement of 8.1 L, delivers robust performance with rated power ranging from 295 hp to 305 hp, and maximum power peaking at 325 hp. Its high compression ratio of 16.5:1 enhances fuel efficiency and power output, making it suitable for demanding tasks like heavy tillage or hauling. However, its operating RPM range of 1500-2200 may limit its efficiency in lower power tasks, necessitating careful matching with implements for optimal performance.
| Description |
John Deere/turbocharged diesel/6-cylinder/liquid-cooled inline |
| Displacement |
496 ci/8.1 L |
| Bore/Stroke |
4.56x5.06 inches/116 x 129 mm |
| Rated Power (ECE R24) |
295 hp/220.0 kW |
| Rated Power (EC 97/98) |
305 hp/227.4 kW |
| Maximum Power (ECE R24) |
325 hp/242.4 kW |
| Maximum Power (EC 97/68) |
335 hp/249.8 kW |
| Compression |
16.5:1 |
| Rated RPM |
2200 |
| Idle RPM |
900-2300 |
| Operating RPM |
1500-2200 |
| Starter volts |
12 |
| Coolant capacity |
35.9 qts/34.0 L |
ENGINE OIL
The John Deere 8520T features a substantial oil capacity of 22.7 quarts (21.5 liters), allowing for extended operation intervals before servicing. With an oil change interval of 250 hours, this tractor minimizes downtime, making it suitable for prolonged tasks on large agricultural fields. However, operators should monitor oil condition regularly to prevent engine wear, especially under heavy loads.
| Description |
|
| Oil capacity |
22.7 qts/21.5 L |
| Oil change |
250 h/ |
JOHN DEERE 8520T ENGINE
The John Deere 8520T is powered by an 8.1L 6-cylinder diesel engine, offering robust performance and high torque delivery, which is crucial for heavy tillage and pulling operations. Its tracked chassis design provides enhanced stability and traction in uneven terrain, making it suitable for challenging agricultural environments. However, the higher initial purchase price and maintenance costs could be a consideration for budget-conscious operators.
| Description |
John Deere 8.1L 6-cyl diesel |
TRANSMISSION
The John Deere 8520T features a full PowerShift transmission with 16 forward and 4 reverse gears, offering seamless shifting and enhanced power delivery for varied field operations. With a substantial oil capacity of 260 quarts (246.1 L), it ensures effective cooling and lubrication under heavy loads, which can optimize longevity and performance during extensive use. Operators may appreciate the efficient gear range for managing diverse tasks, though the complexity of a full PowerShift system could require more maintenance expertise compared to standard transmissions.
| Transmission |
John Deere PowerShift |
| Type |
full power shift |
| Gears |
16 forward and 4 reverse |
| Oil capacity |
260 qts/246.1 L |
SPEEDS
| Description |
Fourth reverse at 1600 RPM./ |
MECHANICAL
The John Deere 8520T, with its crawler chassis, offers excellent traction and stability on variable terrain, making it ideal for tillage and heavy-duty applications. The electro-hydraulic power steering enhances maneuverability and reduces operator fatigue, while the hydraulic wet disc brakes provide reliable stopping power under heavy conditions. The 16-speed full power shift transmission ensures smooth transitions and optimal engine performance, maximizing productivity during field operations.
| Chassis |
crawler |
| Steering |
electro-hydraulic power |
| Brakes |
hydraulic wet disc |
| Cab |
Cab standard. |
| Transmission |
16-speed full power shift |
CAPACITY
| Fuel |
130 gal/492.1 L |
| Hydraulic system |
65 gal/246.0 L |
HYDRAULICS
| Type |
closed center pressure flow compensated (PFC) |
| Capacity |
65 gal/246.0 L |
| Pressure |
2900 psi/200.0 bar |
| Valves |
5 |
| Pump flow |
30 gpm/113.6 lpm |
| Total flow |
33.5 gpm/126.8 lpm/42.5 gpm/160.9 lpm (optional) |
TRACTOR HITCH
| Rear Type |
III/IIIN |
| Rear lift |
15,180 lbs/6885 kg |
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
1000 (1-3/4) |
JOHN DEERE 8520T TRACKS
| Size |
16-inch tracks |
| Option |
18-inch tracks/24-inch tracks/30-inch tracks |
DIMENSIONS
| Wheelbase |
89 inches/226 cm/120 inches/304 cm (wide track opt) |
| Length |
207 inches/525 cm/219.6 inches/557 cm (with front weights) |
| Width |
103.7 inches/263 cm (min)/150 inches/381 cm (max) |
| Height (cab) |
122.9 inches/312 cm |
| Clearance (rear axle) |
21.7 inches/55 cm |
| Clearance (drawbar) |
17.7 inches/44 cm |
JOHN DEERE 8520T WEIGHT
| Shipping |
25,950 lbs/11770 kg |
| Operating |
27,280 lbs/12374 kg |
| Ballasted |
30,895 lbs/14013 kg |
| Max capacity |
31,500 lbs/14288 kg |
DIMENSIONS & TRACKS
| Wheelbase |
89 inches/226 cm/120 inches/304 cm (wide track opt) |
| Weight |
25950 to 27280 pounds |
| Description |
16-inch tracks |
8520T SERIAL NUMBERS
ELECTRICAL
| Ground |
negative |
| Charging system |
alternator |
| Charging amps |
150 |
| Batteries |
2 |
| Battery CCA |
925 |
| Battery volts |
12 |
