The John Deere 8520T is a agricultural crawler tractor from the 8020 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 2002 to 2005. The John Deere 8520T is equipped with a 8.1 L (496.0 cu·in) six-cylinder diesel engine and a full power shift transmission with hydraulic wet disc clutch and 16 forward and 4 reverse gears.
The John Deere 8520T agricultural crawler tractor used the John Deere engine. It is a 8.1 L, 8,128 cm2, (496.0 cu·in) six-cylinder turbocharged diesel engine with 116.0 mm (4.57 in) of the cylinder bore and 129.0 mm (5.08 in) of the piston stroke. The compression ratio rating is 16.5:1. This engine produced 339.7 PS (249.8 kW; 335.0 HP) at 2,200 rpm of max output power.
The JD 8520T is equipped with electro-hydraulic power steering, hydraulic wet disc brakes, Cab (standard), and 492.0 liters (130 US gal, 108.2 Imp. gal) fuel tank.
John Deere 8520T Specifications
| General Specifications | |
| Model | John Deere 8520T |
| Length | 5,250 mm (206.7 in) |
| Width | 3,810 mm (150 in) |
| Height | 3,120 mm (122.8 in) |
| Wheel base | 2,260 mm (89 in) |
| Weight (operating) | 12,375 kg (27,282 lbs) |
| Fuel tank capacity | 492.0 liters (130 US gal, 108.2 Imp. gal) |
| Battery | Two 12V, CCA 925A |
| Cabin type | Cab (standard) |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 8.1 L, 8,128 cm2, (496.0 cu·in) |
| Bore and stroke | 116.0 mm X 129.0 mm (4.57 in X 5.08 in) |
| Compression ratio | 16.5:1 |
| Horsepower | 339.7 PS (249.8 kW; 335.0 HP) at 2,200 rpm |
| Starter | Electric |
| Oil capacity: | 21.5 L (22.7 US. qt, 18.9 Imp. qt.) |
| Coolant capacity: | 34.0 L (35.9 US. qt, 29.9 Imp. qt.) |
| Transmission and chassis | |
| Chassis | Crawler |
| Steering type | Electro-hydraulic power |
| Brakes | Hydraulic wet disc |
| Transmission model | John Deere PowerShift |
| Transmission type | Full power shift with hydraulic wet disc clutch |
| Gears | 16 forward and 4 reverse |
| Speed | Forward: 31.7 kmh (19.7 mph) Reverse: 9.3 (5.8 mph) |
| Transmission oil capacity | 246.0 liters (65 US gal, 54.1 Imp. gal) |
| Tracks | |
| Standard | 16-inch tracks |
| Optional | 18-inch, 24-inch or 30-inch tracks |
| Three-Point Hitch | |
| Caterogy | III/IIIN |
| Control type | – |
| Lift capacity (at ends) | 6,885 kg (15,180 lbs) |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent with hydraulic wet disc clutch |
| Rear PTO speed | 1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center pressure-flow compensated (PFC) |
| Hydraulic capacity | 246 liters (65 US gal, 54.1 Imp. gal) |
| Pressure | 2900 psi (199.9 bar) |
| Valves | 5 |
| Pump flow | 30.0 gpm (113.6 lpm) |
| Total flow | 33.0 gpm (124.9 lpm) 42.5 gpm (160.9 lpm) |
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