John Deere 7020-7520

Manufacturer
Models
John Deere 7020, John Deere 7520
Years
1970-75
Info
In the early 1970s the 7020 and 7520—introduced then—were John Deere’s first in-house frame-steered tractors since the early ’60s. Their narrow design provided excellent visibility and a tight turning radius. Unlike other large tractors of the era, these JDs were equipped with a power take-off. Both models had turbocharged, intercooled engines: the 7020 displacing 6.6 litres and the 7520 8.7 litres. A shuttle gearbox offered 16 forward and 4 reverse gears. The cab was still fairly basic and the clutch was dry.
This is an automated translation. Please report any issues in the translation.
Technical data
| Model | John Deere 7020 | John Deere 7520 |
|---|---|---|
| Options | ||
| Manufacturer name | John Deere | John Deere |
| Imported to Finland | No | No |
| Years | 1970-75 | 1971-75 |
| First year sold | 1970 | 1971 |
| Last year sold | 1975 | 1975 |
| Cyl/Turbo/Intercooler | 6TI | 6TI |
| Displacement | 6620 cm³ | 8698 cm³ |
| Bore x stroke | 108×120,7 mm | 120,7×127 mm |
| Rated power hp/rpm DIN | 175 (146 PTO)/2200 | 175 PTO/2100 |
| Rated power | 175 | - |
| Rated speed | 2200 | 2100 |
| Gears | 16+4 | 16+4 |
| Synchronized gears | 16+4 | 16+4 |
| Powershift gears | 2-step | 2-step |
| Speeds in km/h | 3,6-34,3 | 3,3-36,0 |
| Max. speed | 38.8 km/h | 42.8 km/h |
| Hydr. flow l/min | 83.3 l/min | - |
| Lift controls | mech. | mech. |
| PTO speeds | 1000 | 1000 |
| Brakes | wet disc | wet disc |
| Steering | hydrost. | hydrost. |
| Turning circle m 4WD | 10.6 | 11.16 |
| Front tyres 4WD | 18.4-34 | 23.1-30 |
| Rear tyres 4WD | 18.4-34 | 23.1-30 |
| Weight 4WD | 6577 kg | 7616 kg |
| Height with cab | 297 cm | 312 cm |
| Length (2WD/4WD) | 550 cm | 559 cm |
| Wheelbase (2WD/4WD) | 305 cm | 318 cm |
| Fuel tank | 591 l | 591 l |
| Cab noise level | 98 dB | 87.5 dB |
The data has been collected primarily from brochures. In some cases, sources contain conflicting information. In such cases, we have attempted to select the most reliable information.
There is particularly significant variation in speed data, which varies depending on factors such as tire size. For tires, only the size most commonly used in Finland is listed.
Other changes during the model history have been addressed in the text section. For the front axle lock, the Finnish term "hammaslukko" (gear lock) is used for all 100% locks.
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