This page provides a detailed comparison of the specifications for the David Brown 770 Selectamatic and the John Deere 9630T. The specifications are categorized into four main sections: Engine, Transmission, Dimensions, and Miscellaneous. By comparing these two tractors side by side, you can easily identify the similarities and differences between them and determine which one best suits your needs.
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David Brown 770 Selectamatic
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John Deere 9630T
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| Images | ||
| Engine | ||
| Engine - Manufacturer | David Brown | John Deere |
| Engine - Model | AD3/49 | PowerTech Plus |
| Engine - Cooling Type | Liquid-Cooled | Liquid-cooled |
| Engine - Cylinder Orientation | - | - |
| Engine - Valve Configuration | - | - |
| Engine - Fuel Type | Diesel | Diesel |
| Engine - Induction Type | - | - |
| Engine - Cylinders | 3 | 6 |
| Engine - Displacement (ci) | 164.1 | 826 |
| Engine - Bore (in) | 3.94 | 5.197 |
| Engine - Stroke (in) | - | - |
| Engine - Rated RPM | 2000 | 2100 |
| Engine - Power Output (hp) | 38.34 | 530 |
| Transmission | ||
| Transmission - Type | Gear | John Deere PowerShift, Full power shift |
| Transmission - Forward Gears | 12 | 18 |
| Transmission - Reverse Gears | - | - |
| Transmission - Total Gears | - | - |
| Dimensions | ||
| Length (in) | 112.2 | 237 |
| Width (in) | 63.8 | 136 |
| Height (in) | 80.3 | 134 (cab), 155 (exhaust) |
| Operating Weight (lb) | 3730 | 43,920 (unladen); 52,755 (with ballast and operator) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | Track |
| Drive Type | 2WD | Track |
| Steering Type | Manual | Electro-hydraulic power |
| Coolant Capacity (qts) | 12 | 56 |
| Front Tire Diameter (in) | - | - |
| Front Tire Width (in) | - | - |
| Rear Tire Diameter (in) | - | - |
| Rear Tire Width (in) | - | - |
| Front/Rear Rim Diameter (in) | - | - |
| Tire Type | Ag | Track |
| Manufacture - End Year | 1970 | - |
| Hitch Type | Category I | 4/4N (optional), Category IV |
| Hitch Category | - | - |
| Hitch Position | - | - |
| Hitch Capacity (lb) | - | - |
| Operator Station Type | Open Operator Station | Cab |
| Starter Type | Electric | 12 V Electric Starter |
| PTO Type | Live | - |
| PTO Speed 1 (rpm) | 540 | - |
| PTO Speed 2 (rpm) | - | - |
| PTO Speed 3 (rpm) | - | - |
| Brake Type | Internal expanding shoe | Hydraulic wet disc |
| Hydraulic System Type | Open Center | Closed-center PFC (pressure flow compensated) |
