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| info | |
| Series: | → 7520, |
| Production | |
| Manufacturer: | John Deere |
| Type: | Four-wheel Drive (4WD) tractor |
| Factory: | Waterloo, Iowa, USA |
| Total built: | 2,586 |
| Original price: | $22,000 (1975 ) |
| John Deere 7020 Power | |
| Drawbar (tested): | 127.72 hp 95.2 kW |
| PTO (tested): | 146.17 hp 109.0 kW |
| Mechanical | |
| Chassis: | 4x4 articulated 4WD |
| Steering: | hydrostatic power |
| Cab: | Cab standard |
| Transmissions: | 8-speed partially synchronized, 16-speed partially synchronized |
| Capacity | |
| Fuel: | 156 gal 590.5 L |
| Hydraulic system: | 22 gal 83.3 L |
| Hydraulics | |
| Type: | closed center |
| Capacity: | 22 gal 83.3 L |
| Valves: | 2 (early), 3 (late) |
| Pump flow: | 26 gpm 98.4 lpm |
| Power Take-off (PTO) | |
| Rear PTO: | transmission |
| Rear RPM: | 1000 |
| Dimensions & Tires | |
| Wheelbase: | 120 inches 304 cm |
| Weight: | 18,495 lbs 8389 kg |
| Front tire: | 18.4-34S |
| Rear tire: | 18.4-34S |
| 7020 Serial Numbers | |
| Location: | Serial number plate on the rear of the tractor, above the PTO. |
| 1971: | 773R001000 |
| 1972: | 773R002007 |
| 1973: | 773R002548 |
| 1974: | 773R003122 |
| 1975: | 773R003542 |
| Final: | 773R003708 |
| Electrical | |
| Ground: | negative |
| Charging system: | Motorola alternator*Early, Delco alternator*Late |
| Batteries: | 2 |
| Battery volts: | 6 |
| info | |
| Series: | → 7520, |
| Engine Detail | |
| John Deere, turbocharged intercooled diesel, 6-cylinder, liquid-cooled | |
| Displacement: | 404 ci 6.6 L |
| Bore/Stroke: | 4.25x4.75 inches 108 x 121 mm |
| Air cleaner: | dual paper elements with pre-cleaner |
| Compression: | 15.7:1 |
| Rated RPM: | 2200 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Oil capacity: | 17 qts 16.1 L |
| Coolant capacity: | 32 qts 30.3 L |
| info | |
| Series: | → 7520, |
| Transmissions overview | |
| 8-speed partially synchronized, 16-speed partially synchronized |
| Transmission | |
| Transmission: | Syncro-Range Hi-Lo |
| Type: | partially synchronized |
| Gears: | 16 forward and 4 reverse |
| Eight-speed Deere Synchro-Range transmission with added high and low gears. | |
| info | |
| Series: | → 7520, |
| John Deere 7020 Tires | |
| Ag front: | 18.4-34S |
| Ag rear: | 18.4-34S |
| Dimensions | |
| Wheelbase: | 120 inches 304 cm |
| Weight: | 18,495 lbs 8389 kg |