Deere 4020
Type: Row-crop Tractors
Contents:
Production | |
| Manufacturer: | John Deere |
| Type: | Row-Crop tractor |
| Factories: | Waterloo, Iowa, USA |
| Mexico | |
| Total built: | 184,879 (total) |
| 8,123 (gas) | |
| 8,445 (LP) | |
| 168,311 (diesel) | |
| 17,732 (standard) | |
| Original price: | $10,345 (1972 ) |
Variants | |
| row-crop | |
| standard | |
| high-crop | |
| industrial |
John Deere 4020 Power | |
| Drawbar (tested): | 83.79 hp 62.5 kW |
| PTO (tested): | 95.83 hp 71.5 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| 4x4 HFWD 4WD*Front-wheel assist was optional after 1969. | |
| Differential lock: | mechanical rear*Optional |
| Steering: | power |
| Brakes: | hydraulic wet disc |
| Cab: | Open operator station. Cab optional. |
| Transmissions: | 8-speed partially synchronized |
| 8-speed full power shift | |
Capacity | |
| Gasoline Fuel: | 34 gal 128.7 L |
| Diesel Fuel: | 34 gal 128.7 L |
| LP-gas Fuel: | 45 gal 170.3 L |
| Syncro-Range Hydraulic system: | 10 gal 37.9 L |
| Power Shift Hydraulic system: | 12 gal 45.4 L |
Hydraulics | |
| Type: | closed center |
| Syncro-Range Capacity: | 10 gal 37.9 L |
| Power Shift Capacity: | 12 gal 45.4 L |
| Pressure: | 2250 psi 155.1 bar |
| Valves: | 1 |
| SCV flow: | 6 gpm 22.7 lpm |
| Total flow: | 18 gpm 68.1 lpm (early) |
Tractor hitch | |
| Rear Type: | II |
| Rear lift: | 3790 lbs 1719 kg |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 540/1000 |
| 1000 | |
| Engine RPM: | 540@1900 1000@1900 |
| Front PTO: | independent |
| Front RPM: | 1000 |
| Engine RPM: | 1000@1900 |
4020 Serial Numbers | |
| Location: | Serial number plate on the rear of the 4020 transmission case. |
| 1964: | 65000 |
| 1965: | 91000 |
| 1966: | 119000 |
| 1967: | 145660 |
| 1968: | 173982 |
| 1969: | 201000 |
| 1970: | 222160 |
| 1971: | 250000 |
| 1972: | 260791 |
| Final: | 270288 |
Electrical | |
| Ground: | positive (1964-1969) |
| negative (1969-1972) | |
| floating (24V) | |
| Charging system: | Motorola alternator |
| Charging amps: | 55 |
| 24V Batteries: | 2 |
| 12V Batteries: | 1 |
| Battery volts: | 12 |
| Battery AH: | 75 |
Engine Detail | |
| John Deere | |
| diesel | |
| 6-cylinder 12-valve | |
| liquid-cooled inline | |
| Oil capacity on most 4020 diesels increased from 8 to 12 quarts starting with the 1969 model year, tractor serial number 201,000. High-crop diesel tractors retained the 8-quart capacity throughout the production run. Tractors fitted with after-market turbochargers, and early tractors with replacement oil pans, may also have the higher oil capacity. | |
| Displacement: | 404 ci 6.6 L |
| Bore/Stroke: | 4.25x4.75 inches 108 x 121 mm |
| Compression: | 16.5:1 |
| Rated RPM: | 2200 |
| Idle RPM: | 600-2500 |
| Operating RPM: | 1500-2200 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 24 |
| Coolant capacity: | 24 qts 22.7 L |
| Intake valve clearance: | 0.018 inches 0.457 mm |
| Exhaust valve clearance: | 0.018 inches 0.457 mm |
Dimensions | |
| Row crop Wheelbase: | 97.5 inches 247 cm |
| Standard Wheelbase: | 100.25 inches 254 cm |
| Length: | 151 inches 383 cm |
| Width: | 89.6 inches 227 cm |
| Rear axle: | Regular axle: 3.375 by 91 inches 85 by 2311 mm |
| Rear axle: | Long axle: 3.375 by 104 inches 85 by 2641 mm |
| Rear axle: | Extra long axle: 3.375 by 112 inches 85 by 2844 mm |
| Front tread: | 48.5 to 82.25 inches 123 to 208 cm |
| Rear tread: | 60 to 91 inches 152 to 231 cm |
| Rear tread: | 66 to 97 inches 167 to 246 cm (long axle) |
| Rear tread: | 67 to 105 inches 170 to 266 cm (extra long axle) |
