David Brown 770 Selectamatic
Type: Utility Tractors
Contents:
Production | |
| Manufacturer: | David Brown |
| Type: | Utility tractor |
| Factory: | Meltham Mills, Huddersfield, England |
| Original price: | $3,600 (1970 ) |
David Brown 770 Power | |
| Engine: | 36 hp 26.8 kW |
| PTO (claimed): | 32 hp 23.9 kW |
| Plows: | 2 |
Mechanical | |
| Chassis: | 4x2 2WD |
| Final drives: | spur gear |
| Differential lock: | mechanical rear |
| Steering: | manual |
| Brakes: | mechanical drum |
| Cab: | Open operator station. |
| Transmission: | 12-speed gear |
Hydraulics | |
| Type: | open center |
| Pressure: | 2000 psi 137.9 bar |
| Pump flow: | 6.6 gpm 25.0 lpm |
Tractor hitch | |
| Rear Type: | I |
| Control: | position and draft control |
| Rear lift (at ends): | 1600 lbs 725 kg |
Power Take-off (PTO) | |
| Rear PTO: | live |
| Rear RPM: | 540 (1.375) |
| Engine RPM: | 540@1620 |
Electrical | |
| Ground: | negative |
| Battery volts: | 12 |
| Battery AH: | 96 |
Engine Detail | |
| David Brown AD3/49 | |
| diesel | |
| 3-cylinder | |
| liquid-cooled | |
| Displacement: | 146.1 ci 2.4 L |
| Bore/Stroke: | 3.94x4.00 inches 100 x 102 mm |
| Power: | 36 hp 26.8 kW |
| Fuel system: | direct injection |
| Compression: | 17:1 |
| Rated RPM: | 2055 |
| Idle RPM: | 700-2000 |
| Torque: | 100 lb-ft 135.6 Nm |
| Torque RPM: | 1400 |
| Firing order: | 1-2-3 |
| Starter: | electric |
| Starter volts: | 12 |
| Oil capacity: | 7.8 qts 7.4 L |
| Coolant capacity: | 12 qts 11.4 L |
Transmission | |
| Type: | gear |
| Gears: | 12 forward and 4 reverse |
| Clutch: | dry disc |
| Oil capacity: | 28.8 qts 27.3 L |
Dimensions | |
| Wheelbase: | 75 inches 190 cm |
| Length: | 112.5 inches 285 cm |
| Width: | 64 inches 162 cm |
| Height (steering wheel): | 55.5 inches 140 cm |
| Height (exhaust): | 80.5 inches 204 cm |
| Clearance (drawbar): | 11 inches 27 cm |
| Front tread: | 48/52/56/60/64/68/72/76 inches 121/132/142/152/162/172/182/193 cm |
| Rear tread: | 48/52/56/60/64/68/72/76 inches 121/132/142/152/162/172/182/193 cm |
