John Deere 720
The John Deere 720 is a row-crop tractor produced from 1956 to 1958 as part of the Two-Cylinder 20 Series. It was built in Waterloo, Iowa, USA, and was available in row-crop, standard, or high-crop versions. The tractor came with several engine options including gasoline, all-fuel, LP gas, and diesel 2-cylinder engines. It features a 6-speed unsynchronized transmission, two-wheel drive, manual or optional power steering, and a live 540 RPM PTO. The 720 has a wheelbase of 93.7 inches, weighs 6790 lbs, and uses 6.00-16 front tires and 12-38 rear tires. Attachments include a 45 Loader with a 2000 lbs lift capacity. Electrical system is positive ground for 6V and 12V systems with a generator charging system. The original price was $3,700 in 1958.
Power65 hp[P]
Founded1956 - 1958
Model720
Technical Specifications
Detailed specifications and technical data for John Deere 720
Power
| Belt (tested) | 57.77 hp (43.1 kW) |
|---|---|
| PTO (claimed) | 59 hp (44.0 kW) |
| Belt (claimed) | 50.67 hp (37.8 kW) |
| Drawbar (tested) | 53.41 hp (39.8 kW) |
| Drawbar (claimed) | 53 hp (39.5 kW) |
Engine
| Options | John Deere 5.9L 2-cyl gasoline, John Deere 5.9L 2-cyl all-fuel, John Deere 5.9L 2-cyl LP gas, John Deere 6.2L 2-cyl diesel |
|---|---|
| All-fuel engine | Type2-cylinder 4-valve liquid-cooled Rated RPM1125 Air cleaneroil bath Bore/Stroke6.00x6.375 inches (152 x 162 mm) Displacement360.5 ci (5.9 L) Firing order1-2 Oil capacity12 qts (early) (11.4 L), 10 qts (late) (9.5 L) Starter typeelectric Compression ratio4.91:1 |
| Gasoline engine | Type2-cylinder 4-valve liquid-cooled Rated RPM1125 Air cleaneroil bath Bore/Stroke6.00x6.375 inches (152 x 162 mm) Displacement360.5 ci (5.9 L) Firing order1-2 Oil capacity12 qts (early) (11.4 L), 10 qts (late) (9.5 L) Starter typeelectric Coolant capacity29 qts (27.4 L) Compression ratio6.14:1 |
| Auxiliary fuel (diesel) | 0.25 gal (0.9 L) |
| Auxiliary fuel (all-fuel) | 1 gal (3.8 L) |
| Fuel tank capacity (LP gas) | 33 gal (124.9 L) |
| Fuel tank capacity (diesel) | 20 gal (75.7 L) |
| Fuel tank capacity (all-fuel) | 24.5 gal (92.7 L) |
| Fuel tank capacity (gasoline) | 26.5 gal (100.3 L) |
Overview
| Type | Row-Crop tractor |
|---|---|
| Series | Two-Cylinder 20 Series |
| Built in | Waterloo, Iowa, USA |
| Versions | row-crop, standard, or high-crop |
| Total built | 22,925 (total row-crop) |
| Diesel built | 13,930 |
| LP-gas built | 3,670 |
| All-fuel built | 408 |
| Gasoline built | 4,917 |
| Original price | $3,700 in 1958 |
| Production years | 1956 - 1958 |
Variants
| 720 | row-crop chassis |
|---|---|
| 720S | standard-tread |
| 720HC | high-crop |
Electrical
| Ground | positive (Positive ground for the 6V and 12V systems), floating (The 24V electric-start diesel is not chassis grounded, with both sides of the battery system connected to the starter. The lights and gauges are split on two 12V systems.) |
|---|---|
| Batteries | 1 (diesel pony), 2 (gas/LP), 4 (diesel electric) |
| Battery volts | 6 |
| Charging system | generator |
Hydraulics
| Type | open center |
|---|---|
| Valves | 1 |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Differential mechanical expanding shoe brakes |
| Steering | manual, power optional |
| Operator station | Open |
Attachments
| Loader | 45 Loader |
|---|---|
| Lift height | 126 inches (320 cm) |
| Lift capacity | 2000 lbs (907 kg) |
Transmission
| Type | unsynchronized gear |
|---|---|
| Gears | 6 forward and 1 reverse |
| Clutch | dry |
| Controls | 1gear shift 2pony motor clutch 3decompression 4diesel throttle 5clutch 6pony motor throttle |
| Oil type | SAE 90 (above 0°F [-17°C]), SAE 80 (below 0°F [-17°C]) |
| Manufacturer | John Deere |
| Oil capacity | 30 qts (28.4 L) |
Tractor hitch
| Rear Type | II |
|---|
Serial Numbers
| 1956 | 7200000 |
|---|---|
| 1957 | 7203420 |
| 1958 | 7217368 |
Dimensions & Tires
| Width | 86.625 inches (220 cm) |
|---|---|
| Height | 88.25 inches (224 cm) |
| Length | 135.25 inches (343 cm) |
| Weight | 6790 lbs (3079 kg) |
| Rear tire | 12-38 |
| Wheelbase | 93.7 inches (237 cm) |
| Front tire | 6.00-16 |
Power Take-off (PTO)
| Rear PTO | live |
|---|---|
| Rear PTO Type | 540 (1.375) |
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