David Brown 3800 Selectamatic VS John Deere 4630 specs comparison

David Brown 3800 Selectamatic
General InfosMake | David Brown |
Model | 3800 Selectamatic |
Country | United states |
Production | From 1968 Until 1971 |
Price | 4,000 USD |
Tractor type | Utility tractor |
Fuel | gasoline |
Service repair manual | David Brown 3800 Selectamatic Manual |
Dimensions, sizes and tires
AG front tires | 14.9/13-24 |
AG rear tires | 13.6/12-28 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 3885 lbs or 1762 kg |
Length | 115.625 inches [293 cm] |
Width | 64.5 inches [163 cm] (min) |
Height | - |
Wheelbase | 76 inches [193 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 48 to 76 inches |
Front tread size | 48 to 72 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 146.1 ci or 2.4 L |
Cylinders | 3 cylinders |
Engine power | - |
Engine RPM | 2200 (rpm) |
Torque | 115 lb-ft or 155.9 Nm | Torque RPM | 1400 (rpm) |
Fuel type | gasoline |
Fuel injection | - |
Fuel tank size | 9.5 gal or 36.0 L |
Oil capacity | 6.75 qts or 6.4 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | David Brown 3800 Selectamatic Parts |
Batteries number | 1 |
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 | mechanical shoe |
Cabin type | Open operating station |
Differentiel lock | rear diff lock standard |
System | Selectamatic |
Valves | - |
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 | 32.13 hp or 24.0 kW |
Fuel consumption | 3.4 gal/hour or 12.9 l/hour |
Pulling power | 4419 lbs or 2004 kg |
Claimed power | 39 hp or 29.1 kW |
Real power | 37.24 hp or 27.8 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | live |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 3.3 gal/hour or 12.5 l/hour |
Hitch system | position and draft control |
Rear hitch | I |
Rear hitch lift | 1600 lbs or 725 kg |
Front hitch | - |
Front hitch lift | - |

John Deere 4630
General InfosMake | John Deere |
Model | 4630 |
Country | United states |
Production | From 1973 Until 1977 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | John Deere 4630 Manual |
Dimensions, sizes and tires
AG front tires | 10.00-16 |
AG rear tires | 18.4-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 16250 lbs or 7371 kg |
Length | - |
Width | - |
Height | - |
Wheelbase | 112 inches [284 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 404 ci or 6.6 L |
Cylinders | 6 cylinders |
Engine power | - |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 65 gal or 246.0 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | John Deere 4630 Parts |
Batteries number | 2 |
Batteries voltage | 6 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | John Deere Quad-Range |
Trans type | partial power shift |
Trans gears | 16 forward and 6 reverse |
Clutch system | hydraulic wet discs |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | power |
Braking system | differential hydraulic wet disc |
Cabin type | Sound-Gard cab with A/C standard |
Differentiel lock | - |
System | closed center |
Valves | 1 to 3 |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | 131 hp or 97.7 kW |
Drawbar horsepower | 127.92 hp or 95.4 kW |
Fuel consumption | 9.6 gal/hour or 36.3 l/hour |
Pulling power | 14,478 lbs or 6567 kg |
Claimed power | 150 hp or 111.9 kW |
Real power | 150.66 hp or 112.3 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 9.6 gal/hour or 36.3 l/hour |
Hitch system | - |
Rear hitch | III/IIIN |
Rear hitch lift | 5,260 lbs or 2385 kg |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- David Brown provided us with the latest version of its 3800 Selectamatic service repair manual
- Find All mechanical and electrical parts and accessories of David Brown 3800 Selectamatic farm-tractor here
- Get your John Deere 4630 manual book version
- Cabine, electrical And mechanical parts for John Deere 4630 farm-tractor here