Technical specifications of the agricultural tractor David Brown Selectamatic 770/780/880/990/1200:
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| Model | David Brown 770 | David Brown 780 | David Brown 880 | David Brown 990 | David Brown 1200 |
| Years of production | 65-70 | 67-71 | 65-71 | 65-71 | 67-68 |
| Engine model / type | DB AD3/49 | DB AD3/35 | DB AD3/55 | DB AD4/47 | DB AD4/45 |
| Number of cylinders / turbocharging | 3 | 3 | 3 | 4 | 4 |
| Engine displacement (cm3) | 2400 | 2695 | 2695 | 3045 | 3592 |
| Piston dimension / stroke (mm) | 100×101,6 | 100×114,3 | 100×114,3 | 92,1×114,3 | 100×114,3 |
| Maximum engine power (hp) / rpm | 36/2000 | 46/2200 | 46/2200 | 55/2200 | 67/2300 |
| Torque (Nm) / rpm | 137/1200 | 172/1200 | 172/1200 | 209/1200 | 247/1200 |
| Number of gears (front + rear) | 6+2/12+4 | 6+2/12+4 | 6+2/12+4 | 6+2/12+4 | 6+2/12+4 |
| Number of synchronized gears (front+rear) | – | – | – | – | – |
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| Speed-Shift | – | – | – | – | – |
| Type of reverse | – | – | – | – | – |
| Driving speed (km/h) | 3,2-26,2 | 4,3-29,2 | 3,3-26,0 | 4,0-23,7 | 4,0-23,7 |
| Max Driving speed (km/h) | 27,9 | 27 | 27 | – | – |
| Hydraulic pump capacity (L/min) | 22,7 | 22,7 | 22,7 | 22,7 | 22,7(50) |
| 3-Point Hitch control | mech | mech | mech | mech | mech |
| 3-point hitch max load (kg) | 1200 | 1200 | 1200 | 1500 | 1940/2080 |
| PTO speed (rpm) | 540 | 540 | 540/1000 | 540/1000 | 540/1000 |
| Disc brake type (dry / wet) | – | – | – | – | – |
| Type of control of the braking system | mech | mech | mech | mech | mech |
| Turning radius 2WD (m) | 6,7 | 6,28 | 6,4 | 7 | 7 |
| Turning radius 4WD (m) | – | – | – | – | – |
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| Front wheel 2WD | 6,00-16 | 6,00-16 | 6,00-16 | 7,50-16 | 7,50-16 |
| Front wheel 4WD | – | – | – | – | – |
| Rear wheel 2WD | 12,4-28 | 12,4-28 | 12,4-32 | 12,4-36 | 12,4-36 |
| Rear wheel 4WD | – | – | – | – | – |
| 2WD total weight (kg) | 1720 | 1690 | 1800 | 2200 | 2610 |
| 4WD total weight (kg) | – | – | – | – | – |
| Total height with cabin (cm) | 142 | 150 | 163 | 164 | 164 |
| Total length (cm) | 290 | 308 | 315 | 363 | 363 |
| Total width (cm) | 196 | 190,5 | 203 | 200 | 225 |
| Fuel tank capacity (l) | 36 | 36 | 52,3 | 61,4 | 81,7 |
| Cabin sound level (dB) | – | – | – | – | – |
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