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Technical specification of agricultural tractor John Deere 4230/4430/4630 :
| Model | John Deere 4230 | John Deere 4430 | John Deere 4630 |
| Years of production | 76-77 | 76-77 | 76-77 |
| Engine model / type | – | – | – |
| Number of cylinders / turbocharging | 6 | 6T | 6TI |
| Engine displacement (cm3) | 6620 | 6620 | 6620 |
| Piston dimension / stroke (mm) | 108×120 | 108×120 | 108×120 |
| Maximum engine power (hp) / rpm | 118/2200 | 145/2200 | 180/2200 |
| Torque (Nm) / rpm | 425/1500 | 560/1600 | – |
| Number of gears (front + rear) | 8+2/16+4 | 8+2/16+4 | 8+2/16+4 |
| Number of synchronized gears (front+rear) | 8+2/16+4 | 8+2/16+4 | 8+2/16+4 |
| Speed-Shift | hydr | hydr | hydr |
| Type of reverse | – | – | – |
| Driving speed (km/h) | 3,2-30,0 | – | – |
| Max Driving speed (km/h) | 30 | 30 | 30 |
| Hydraulic pump capacity (L/min) | 87 | 87 | 108 |
| 3-Point Hitch control | mech | mech | mech |
| 3-point hitch max load (kg) | 3180 | 3180 | – |
| PTO speed (rpm) | 540/1000 | 540/1000 | 540/1000 |
| Disc brake type (dry / wet) | – | – | – |
| Type of control of the braking system | hydr | hydr | hydr |
| Turning radius 2WD (m) | – | – | – |
| Turning radius 4WD (m) | – | – | – |
| Front wheel 2WD | 11,00-18 | 11,00-16 | 11,00-16 |
| Front wheel 4WD | – | – | – |
| Rear wheel 2WD | 18,4-38 | 18,4-38 | 18,4-38 |
| Rear wheel 4WD | – | – | – |
| 2WD total weight (kg) | 5200 | 5450 | 5600 |
| 4WD total weight (kg) | – | – | – |
| Total height with cabin (cm) | 290 | 295 | – |
| Total length (cm) | 445 | 445 | 445 |
| Total width (cm) | 265/264 | 271 | 286 |
| Fuel tank capacity (l) | 144 | 176 | 246 |
| Cabin sound level (dB) | 79 | 80 | – |
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John Deere is a major American manufacturer of agricultural machinery. The first machine produced in 1836 was a plow that made tillage easier. In 1868, the company was incorporated as Deere & Company and in 1958 as John Deere-Delaware Company. John Deere machines are considered reliable, and as a result, are extremely popular.
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