John Deere 7720 VS David Brown 4600 Selectamatic specs comparison
John Deere 7720
General Infos| Make | John Deere |
| Model | 7720 |
| Country | United states |
| Production | From 2004 Until 2007 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | John Deere 7720 Manual |
Dimensions, sizes and tires
| AG front tires | 11.00-16 |
| AG rear tires | 18.4R4 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 15,501 lbs or 7031 kg |
| Length | 212.2 inches [538 cm] |
| Width | 96 inches [243 cm] (short axle) |
| Height | 125.4 inches [318 cm] |
| Wheelbase | 112.6 inches [286 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 414 ci or 6.8 L |
| Cylinders | 6 cylinders |
| Engine power | - |
| Engine RPM | 2100 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 103.5 gal or 391.7 L |
| Oil capacity | 27.5 qts or 26.0 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 7720 Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | 925 |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 150 amps |
| Trans system | AutoPowr IVT |
| Trans type | infinitely variable transmission |
| Trans gears | infinite forward and reverse |
| Clutch system | hydraulic wet discs |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | hydrostatic power |
| Braking system | hydraulic wet disc |
| Cabin type | Cab standard |
| Differentiel lock | - |
| System | closed-center pressure-flow compensated |
| Valves | 7 |
| Pump flow | 32.2 gpm or 121.9 lpm |
| SVC flow | 30 gpm or 113.6 lpm |
| Steering flow | - |
| Tank capacity | 28.5 gal or 107.9 L |
| Hydraulic pressure | 3046 psi or 210.0 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | 129.08 hp or 96.3 kW |
| Fuel consumption | 8.1 gal/hour or 30.7 l/hour |
| Pulling power | 20604 lbs or 9345 kg |
| Claimed power | 140 hp or 104.4 kW |
| Real power | 150.58 hp or 112.3 kW |
| Engine @RPM | 540@1950 (rpm) |
| PTO Clutch | hydraulic wet discs |
| Rear PTO | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 8.3 gal/hour or 31.4 l/hour |
| Hitch system | - |
| Rear hitch | 3/3N |
| Rear hitch lift | 10,050 lbs or 4558 kg |
| Front hitch | - |
| Front hitch lift | - |
David Brown 4600 Selectamatic
General Infos| Make | David Brown |
| Model | 4600 Selectamatic |
| Country | United states |
| Production | From 1968 Until 1971 |
| Price | 4,600 USD |
| Tractor type | Utility tractor |
| Fuel | gasoline |
| Service repair manual | David Brown 4600 Selectamatic Manual |
Dimensions, sizes and tires
| AG front tires | 7.50-16 |
| AG rear tires | 14.9/13-28 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 4300 lbs or 1950 kg |
| Length | 121.5 inches [308 cm] |
| Width | 68.375 inches [173 cm] (min) |
| Height | - |
| Wheelbase | 79.75 inches [202 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 52 to 80 inches |
| Front tread size | 52 to 72 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 164.4 ci or 2.7 L |
| Cylinders | 3 cylinders |
| Engine power | - |
| Engine RPM | 2200 (rpm) |
| Torque | 140 lb-ft or 189.8 Nm | Torque RPM | 1400 (rpm) |
| Fuel type | gasoline |
| Fuel injection | - |
| Fuel tank size | 13.75 gal or 52.0 L |
| Oil capacity | 6.75 qts or 6.4 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | David Brown 4600 Selectamatic Parts |
| Batteries number | - |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | - |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | - |
| Trans type | gear |
| Trans gears | 12 forward and 4 reverse |
| Clutch system | dry disc |
| Wheel drive | 4x2 2WD |
| Final drive | spur gear |
| Steering | manual |
| Braking system | expanding shoe |
| Cabin type | Open operator station |
| Differentiel lock | rear diff lock standard |
| System | Selectamatic |
| Valves | 0 to 2 |
| Pump flow | 7.3 gpm or 27.6 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 6 gal or 22.7 L |
| Hydraulic pressure | 2000 psi or 137.9 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | 38.34 hp or 28.6 kW |
| Fuel consumption | 4.0 gal/hour or 15.1 l/hour |
| Pulling power | 5421 lbs or 2458 kg |
| Claimed power | 46 hp or 34.3 kW |
| Real power | 43.17 hp or 32.2 kW |
| Engine @RPM | 540@1823 (rpm) |
| PTO Clutch | - |
| Rear PTO | live |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 3.7 gal/hour or 14.0 l/hour |
| Hitch system | position and draft control |
| Rear hitch | II/I |
| Rear hitch lift | 1800 lbs or 816 kg |
| Front hitch | - |
| Front hitch lift | - |
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Useful links and guides ....
- John Deere provided us with the latest version of its 7720 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 7720 farm-tractor here
- Get your David Brown 4600 Selectamatic manual book version
- Cabine, electrical And mechanical parts for David Brown 4600 Selectamatic farm-tractor here
