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info | |
1965 - 1970 Selectamatic Series, Utility tractor | |
Series next: | David Brown 880 |
Production | |
Manufacturer: | David Brown |
Factory: | Meltham Mills, Huddersfield, England |
Original price (USD), $3,600 (1970 ), |
Capacity | |
Fuel: | 11.4 gal [43.1 L] |
3-Point Hitch | |
Rear Type: | I |
Control: | position and draft control |
Power Take-off (PTO) | |
Rear PTO: | live |
Rear RPM: | 540 (1.375) |
Engine RPM: | 540@1620 |
Dimensions & Tires | |
Wheelbase: | 75 inches [190 cm] |
Weight: | 3110 to 3270 pounds |
Front tire: | 6.00-16 |
Rear tire: | 12.4/11-28 |
David Brown 770 Power | |
Engine: | 36 hp [26.8 kW] |
Drawbar (claimed): | 27.5 hp [20.5 kW] |
PTO (claimed): | 32 hp [23.9 kW] |
Mechanical | |
Chassis: | 4x2 2WD |
Final drives: | spur gear |
Differential lock: | mechanical rear |
Steering: | manual |
Brakes: | mechanical drum |
Cab: | Open operator station. |
Hydraulics | |
Type: | open center |
Pressure: | 2000 psi [137.9 bar] |
Belt Pulley | |
Diameter: | 8.5 inches [21 cm] |
Width: | 5.2 inches [13 cm] |
RPM: | 2023 |
Speed: | 3100 ft/min [944.88 meters/min] |
Electrical | |
Ground: | negative |
Battery | |
Volts: | 12 |
Amp-hours: | 96 |
info | |
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] |
Engine Detail | |
David Brown AD3/49, diesel, 3-cylinder, liquid-cooled, 146.1 ci [2.4 L] |
info | |
Series next: | David Brown 880 |
Transmission | |
Type: | gear |
Gears: | 12 forward and 4 reverse |
Clutch: | dry disc |
Oil capacity: | 28.8 qts [27.3 L] |
info | |
Series next: | David Brown 880 |
Dimensions | |
Weight (shipping): | 3110 lbs [1410 kg] |
Weight (operating): | 3270 lbs [1483 kg] |
Weight (max capacity): | 4470 lbs [2027 kg] |
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] |
David Brown 770 Tires | |
Ag front: | 5.50-16 |
Ag rear: | 11.2/10-28 |