John Deere 720 Specs ( 1956-1958 )
Production
| Description | Row-Crop tractor / Built in Waterloo, Iowa, USA / Original price was $3,700 in 1958 / The John Deere model 720 was available in row-crop, standard, or high-crop versions. |
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| Manufacturer | John Deere |
| Total built | 22,925 (total row-crop) |
Engine
| Air cleaner | oil bath / oil bath / oil bath |
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| Bore/Stroke | 6.00x6.375 inches (152 x 162 mm) / 6.00x6.375 inches (152 x 162 mm) / 6.00x6.375 inches (152 x 162 mm) / 6.125x6.375 inches (156 x 162 mm) |
| Compression | 6.14:1 / 4.91:1 / 7.94:1 / 16:1 |
| Coolant capacity | 29 qts (27.4 L) |
| Description | John Deere / gasoline / 2-cylinder 4-valve / liquid-cooled / John Deere / all-fuel / 2-cylinder 4-valve / liquid-cooled / John Deere / LP gas / 2-cylinder 4-valve / liquid-cooled / John Deere / diesel / 2-cylinder 4-valve / liquid-cooled |
| Displacement | 360.5 ci (5.9 L) / 360.5 ci (5.9 L) / 360.5 ci (5.9 L) / 376 ci (6.2 L) |
| Firing order | 1-2 / 1-2 / 1-2 / 1-2 |
| Oil capacity | 12 qts (early) (11.4 L) / 12 qts (early) (11.4 L) / 11 qts (diesel) (10.4 L) |
| Rated RPM | 1125 / 1125 / 1125 / 1125 |
| Starter | electric / pony motor *Four-cylinder 6V electric-start gasoline pony power used to warm and start the diesel engine. |
| Starter type | electric / electric |
| Starter volts | 12 / 6 (diesel pony) |
| Engine type | 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 |
| Aux. fuel | 1 gal (all-fuel) (3.8 L) |
| Engine type | 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 |
| Fuel tank | 24.5 gal (all-fuel) (92.7 L) |
| Belt (claimed) | 50.67 hp (37.8 kW) |
| Belt (tested) | 57.77 hp (43.1 kW) |
| Drawbar (claimed) | 53 hp (39.5 kW) |
| Drawbar (tested) | 53.41 hp (39.8 kW) |
| PTO (claimed) | 59 hp (44.0 kW) |
Transmission
| 1 | gear shift |
|---|---|
| 2 | pony motor clutch |
| 3 | decompression |
| 4 | diesel throttle |
| 5 | clutch |
| 6 | pony motor throttle |
| 0oF [-17oC]↑ | : SAE 90 |
| 0oF [-17oC]↓ | : SAE 80 |
| Clutch | dry |
| Gears | 6 forward and 1 reverse |
| Manufacturer | John Deere |
| Oil capacity | 30 qts (28.4 L) |
| Oil type | 0oF [-17oC]↑ : SAE 90 0oF [-17oC]↓ : SAE 80 ([-17oC][-17oC]) |
| Transmission type | 6-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. |
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| Description | Differential mechanical expanding shoe brakes |
| Drive type | Two-wheel drive |
| Steering | manual |
Hydraulics
| Type | open center |
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| Valves | 1 |
Hitch
| Rear Type | II |
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PTO
| Rear PTO | live |
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| Rear PTO Type | 540 (1.375) |
Electrical
| Batteries | 1 (diesel pony) |
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| Battery volts | 6 |
| Charging system | generator |
| Ground | positive *Positive ground for the 6V and 12V systems. |
Dimensions & Tires
| Height | 88.25 inches (224 cm) |
|---|---|
| Length | 135.25 inches (343 cm) |
| Weight | 6790 lbs (3079 kg) |
| Wheelbase | 93.7 inches (237 cm) |
| Width | 86.625 inches (220 cm) |
| Front tire | 6.00-16 |
| Rear tire | 12-38 |
| Weight | 6790 lbs (3079 kg) |
| Wheelbase | 93.7 inches (237 cm) |
| Ag front | 6.00-16 |
| Ag rear | 12-38 |
720 Serial Number Location
| Description | Right side of tractor in front of and below pulley. |
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720 Serial Numbers
| 1956 | 7200000 |
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| 1957 | 7203420 |
| 1958 | 7217368 |
| Description | FAQ: How to read a serial number table. |
John Deere 720 attachments
| Description | front-end loader |
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Nebraska Tractor Test 593
| Belt fuel use (max) | 6.3 gal/hour (23.8 l/hour) |
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| Belt power (max) | 57.33 hp (42.8 kW) |
| Description | LP gas 6-speed 2WDSeptember 17 - 19, 1956Link: Nebraska Tractor Test 593 file / Drawbar performance / Gear 4 used for power test. / Gear 1 used for pull test. |
| Max power | 52.38 hp (39.1 kW) |
| Max pull | 6,697 lbs (3037 kg) |
Nebraska Tractor Test 594
| Belt fuel use (max) | 3.2 gal/hour (12.1 l/hour) |
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| Belt power (max) | 56.66 hp (42.3 kW) |
| Description | Diesel 6-speed 2WDSeptember 18 - 22, 1956Link: Nebraska Tractor Test 594 file / Drawbar performance / Gear 4 used for power test. / Gear 1 used for pull test. |
| Max power | 51.83 hp (38.6 kW) |
| Max pull | 6,547 lbs (2969 kg) |
Nebraska Tractor Test 605
| Belt fuel use (max) | 5.2 gal/hour (19.7 l/hour) |
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| Belt power (max) | 57.77 hp (43.1 kW) |
| Description | Gasoline 6-speed 2WDNovember 6 - 12, 1956Link: Nebraska Tractor Test 605 file / Drawbar performance / Gear 4 used for power test. / Gear 1 used for pull test. |
| Max power | 53.41 hp (39.8 kW) |
| Max pull | 6,647 lbs (3015 kg) |
Nebraska Tractor Test 606
| Belt fuel use (max) | 4.4 gal/hour (16.7 l/hour) |
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| Belt power (max) | 44.13 hp (32.9 kW) |
| Description | Tractor fuel 6-speed 2WDNovember 12 - 19, 1956Link: Nebraska Tractor Test 606 file / Drawbar performance / Gear 4 used for power test. / Gear 1 used for pull test. |
| Max power | 40.78 hp (30.4 kW) |
| Max pull | 6,608 lbs (2997 kg) |
References
| Description | The John Deere 20 series Two Cylinder Tractors by Benjamin Hain / Tractors 1918-1976 published by John Deere* / The 1957 John Deere Tractors are here! / Facts about horsepower and fuel economy published in 1957, by John Deere / *Publication contains known errors. / Operator's Manual 720 (OM-R2055) published in 1956 / Operator's Manual 720 Diesel (OM-R2057) published in 1956 / Operator's Manual 720 (OM-R2082) published in 1957 |
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Speeds
| Description | With 13.6-38 rear tires. |
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Tractor Tests
| Description | NTTL 593: LP gas 6-speed 2WD / NTTL 594: diesel 6-speed 2WD / NTTL 605: gasoline 6-speed 2WD / NTTL 606: tractor fuel 6-speed 2WD |
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Variants
| 720 | row-crop chassis |
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| 720HC | high-crop |
| 720S | standard-tread |