Production | |
| Manufacturer: | John Deere |
| Type: | Row-Crop tractor |
| Factories: | Waterloo, Iowa, USA |
| Mexico | |
| Total built: | 74,463 (Row Crop) |
| 6,307 (Standard) | |
| 1,314 (Row-Crop Utility) | |
| 508 (High-Crop) | |
| 324 (Special Utility) | |
| 139 (Orchard) | |
| Original price: | $10,000 (1972) |
Variants | |
| industrial tractor |
John Deere 3020 Power | |
| Drawbar (claimed): | 57 hp 42.5 kW |
| PTO (claimed): | 70 hp 52.2 kW (Syncro-Range) |
| 65 hp 48.5 kW (Powershift) | |
| Drawbar (tested): | 63.13 hp 47.1 kW |
| PTO (tested): | 71.26 hp 53.1 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| Differential lock: | rear optional |
| Steering: | power assist |
| Brakes: | differential hydraulic wet disc |
| Cab: | Open operator station. |
| Transmissions: | 8-speed partially synchronized |
| 8-speed full power shift | |
Capacity | |
| Fuel: | 29 gal 109.8 L |
| LP-Gas Fuel: | 33.6 gal 127.2 L |
| Syncro-Range Hydraulic system: | 8 gal 30.3 L |
| Power Shift Hydraulic system: | 11 gal 41.6 L |
Hydraulics | |
| Type: | closed center |
| Syncro-Range Capacity: | 8 gal 30.3 L |
| Power Shift Capacity: | 11 gal 41.6 L |
| Pressure: | 2100 psi 144.8 bar |
| Valves: | 1 |
| SCV flow: | 6 gpm 22.7 lpm |
| Total flow: | 14 gpm 53.0 lpm |
Tractor hitch | |
| Rear Type: | II |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 540/1000 |
| 1000 | |
| Engine RPM: | 540@2100 1000@2100 |
| Mid RPM: | 1000 |
3020 Serial Numbers | |
| Location: | Rear of tractor, above PTO. |
| 1964: | 50000 |
| 1965: | 68000 |
| 1966: | 84000 |
| 1967: | 97286 |
| 1968: | 112933 |
| 1969: | 123000 |
| 1970: | 129897 |
| 1971: | 150000 |
| 1972: | 154197 |
Engine Detail | |
| John Deere | |
| gasoline | |
| 4-cylinder | |
| liquid-cooled | |
| Displacement: | 227 ci 3.7 L |
| Bore/Stroke: | 4.25x4.00 inches 108 x 102 mm |
| Air cleaner: | oil bath |
| Compression: | 7.5:1 |
| Rated RPM: | 2500 |
| Operating RPM: | 1500-2500 |
| Firing order: | 1-3-4-2 |
| Starter volts: | 12 |
| Sparkplug gap: | 0.025 inches 0.635 mm |
| Point gap: | 0.022 inches 0.559 mm |
| Intake valve clearance: | 0.015 inches 0.381 mm |
| Exhaust valve clearance: | 0.028 inches 0.711 mm |
Dimensions | |
| Wheelbase: | 90 inches 228 cm |
| Length: | 138.5 inches 351 cm |
| Width: | 89.625 inches 227 cm |
| Height (steering wheel): | 75.5 inches 191 cm |
| Height (exhaust): | 87.5 inches 222 cm |
| Rear axle: | Bar |
| Rear tread: | 60 to 91 inches 152 to 231 cm |
| Rear tread: | 60 to 97 inches 152 to 246 cm (long axle) |
| Rear tread: | 60 to 113 inches 152 to 287 cm (extra long axle) |