The John Deere 720 is a 2WD row-crop tractor from the Two-Cylinder 20 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1956 to 1958.
The John Deere 720 is equipped with three variants of a 5.9 L (360.5 cu·in) two-cylinder engine for gasoline, LP-gas, and all-fuel or a 6.2 L (375.9 cu·in) two-cylinder diesel engine and unsynchronized gear transmission with 6 forward and 1 reverse gear.
The tractor could be equipped with the following engines:
- John Deere. It is a 5.9 L, 5,907 cm2, (360.5 cu·in) two-cylinder natural aspirated gasoline/LP-gas engine with 152.0 mm (5.98 in) of the cylinder bore and 162.0 mm (6.38 in) of the piston stroke. The compression ratio rating is 6.14:1 for gasoline engine, 4.91:1 for all-fuel engine and 7.94:1 for LP-gas engine.
- John Deere. It is a 6.2 L, 6,160 cm2, (375.9 cu·in) two-cylinder natural aspirated diesel engine. The cylinder bore is 156.0 mm (6.14 in) and the piston stroke is 162.0 mm (6.38 in). The compression ratio rating is 16.0:1.
The JD 720 is equipped with manual or power (option) steering, differential mechanical expanding shoe brakes and open operator station.
John Deere 720 Specifications
| General Specifications | |
| Model | John Deere 720 |
| Length | 3,430 mm (135 in) |
| Width | 2,200 mm (86.6 in) |
| Height | 2,240 mm (88.2 in) |
| Wheel base | 2,370 mm (93.3 in) |
| Weight | 3,080 kg (6,790 lbs) |
| Fuel tank capacity |
Gasoline: 100.3 liters (26.5 US gal.; 22.1 Imp. gal) Diesel: 75.7 liters (20 US gal.; 16.7 Imp. gal) All-fuel: 92.7 liters (24.5 US gal.; 20.4 Imp. gal) LP-gas: 124.9 liters (33.0 US gal.; 27.5 Imp. gal) |
| Battery |
Diesel with pony motor: one 6V Gasoline/LP-gas: two 6V Diesel electric starter: three 6V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | Gasoline/LP-gas |
| Displacement | 5.9 L, 5,907 cm2, (360.5 cu·in) |
| Bore and stroke | 152.0 mm X 162.0 mm (5.98 in X 6.38 in) |
| Compression ratio |
Gasoline: 6.14:1 All-fuel: 4.91:1 LP-gas: 7.94:1 |
| Horsepower | – |
| Starter | Electric |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | Diesel |
| Displacement | 6.2 L, 6,160 cm2, (375.9 cu·in) |
| Bore and stroke | 156.0 mm X 162.0 mm (6.14 in X 6.38 in) |
| Compression ratio | 16.0:1 |
| Horsepower | – |
| Starter | Pony motor or electric |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual or power (option) |
| Brakes | Differential mechanical expanding shoe |
| Transmission model | John Deere |
| Transmission type | Unsynchronized gear |
| Gears | 6 forward and 1 reverse |
| Speed | Forward: 18.2 kmh (11.3 mph) Reverse: 5.4 (3.4 mph) |
| Transmission oil capacity | 28.4 L (7.5 US. gal, 6.2 Imp. gal.) |
| Tires | |
| Front tires | Ag: 6.00-16 |
| Rear tires | Ag: 12-38 |
| Three-Point Hitch | |
| Category | II |
| Control type | |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Live |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Valves | 1 |