The John Deere 7520 is a 2WD four-wheel drive tractor manufactured by John Deere in Waterloo, Iowa, USA from 1972 to 1975. The JD 7520 is equipped with a 8.7 L (531.0 cu·in) six-cylinder diesel engine and one of two transmissions: a partially synchronized transmission with 8 forward and 2 reverse gears or a partially synchronized transmission with 16 forward and 4 reverse gears.
The JD 7520 four-wheel drive used the John Deere engine. It is a 8.7 L, 8,701 cm2, (531.0 cu·in) six-cylinder turbocharged intercooled diesel engine with 121.0 mm (4.76 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 15.4:1. This engine produced 177.5 PS (130.5 kW; 175 HP) at 2,100 rpm of output power.
The John Deere 7520 is equipped with hydrostatic power steering, integral hydraulic wet disc brakes, cab, and 590.5 liters (156 US gal.; 129.9 Imp. gal) fuel tank.
John Deere 7520 Specifications
| General Specifications | |
| Model | John Deere 7520 |
| Length | 5,580 mm (219.7 in) |
| Width | 2,430 mm (95.7 in) |
| Height | 3,120 mm (122.8 in) |
| Wheel base | 3,040 mm (119.7 in) |
| Weight (shipping) | 7,615 kg (16,800 lbs) |
| Fuel tank capacity | 590.5 liters (156 US gal.; 129.9 Imp. gal) |
| Battery | Two 6V, 204 Ah |
| Cabin type | Cab |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 8.7 L, 8,701 cm2, (531.0 cu·in) |
| Bore and stroke | 121.0 mm X 127.0 mm (4.76 in X 5 in) |
| Compression ratio | 15.4:1 |
| Horsepower | 177.5 PS (130.5 kW; 175.0 HP) at 2,100 rpm |
| Starter | Electric |
| Oil capacity: | 24.6 L (26 US. qt, 21.6 Imp. qt.) |
| Coolant capacity: | 37.9 L (40 US. qt, 33.3 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×4 articulated 4WD |
| Steering type | Hydrostatic power |
| Brakes | Integral hydraulic wet disc |
| Transmission model | Syncro-Range |
| Transmission type | Partially synchronized |
| Gears | 8 forward and 2 reverse |
| Speed | Forward: 31.3 kmh (19.5 mph) Reverse: 11.0 kmh (6.8 mph) |
| Transmission oil capacity | 71.9 L (19 US. gal, 15.8 Imp. gal.) |
| Transmission model | Syncro-Range Hi-Lo |
| Transmission type | Partially synchronized |
| Gears | 16 forward and 4 reverse |
| Speed | Forward: 36.0 kmh (22.4 mph) Reverse: 12.6 kmh (7.8 mph) |
| Transmission oil capacity | 71.9 L (19 US. gal, 15.8 Imp. gal.) |
| Tires | |
| Front tires | Ag: 18.4-34, 23.1-30 |
| Rear tires | Ag: 18.4-34, 23.1-30 |
| PTO (Power take-off shaft) | |
| Rear PTO type | Transmission |
| Rear PTO speed | 1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center |
| Hydraulic capacity | 71.9 L (19 US. gal, 15.8 Imp. gal.) |
| Pressure | 2250 psi (155.1 bar) |
| Pump flow | 21.0 gpm (79.5 lpm) |
Be the first to comment