David Brown 780 utility tractor: review and specs

The David Brown 780 is a 2WD utility tractor manufactured by David Brown in Meltham Mills, Huddersfield, England from 1967 to 1971. The David Brown 780 is equipped with a 2.7 L (164.4 cu·in) three-cylinder diesel engine and a sliding gear with dry disc clutch transmission with 12 forward and 4 reverse gears.

The David Brown 780 utility tractor used the David Brown engine. It is a 2.7 L, 2,694 cm², (164.4 cu·in) three-cylinder natural aspirated diesel engine with 100.0 mm (3.94 in) of the cylinder bore and 114.0 mm (4.49 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 46.6 PS (34.3 kW; 46.0 HP) at 2,000 rpm of output power.

The David Brown 780 is equipped with manual steering, mechanical drum brakes, open operator station, and 36.0 liters (9.5 US gal.; 7.9 Imp. gal) fuel tank.

David Brown 780 Specifications

General Specifications
Model	David Brown 780
Length	2,830 mm (111.4 in)
Width	1,620 mm (63.8 in)
Height	2,090 mm (82.3 in)
Wheel base	1,920 mm (75.6 in)
Ground clearance	290 mm (11.4 in)
Weight	1,575 kg (3,472 lbs)
Fuel tank capacity	36.0 liters (9.5 US gal.; 7.9 Imp. gal)
Battery	12V
Cabin type	Open operator station
Engine
Engine model	David Brown
Engine type	Four-stroke, liquid-cooled, inline
Cylinders	3
Fuel type	Diesel
Displacement	2.7 L, 2,694 cm², (164.4 cu·in)
Bore and stroke	100.0 mm X 114.0 mm (3.94 in X 4.49 in)
Compression ratio	17.0:1
Horsepower	46.6 PS (34.3 kW; 46.0 HP) at 2,000 rpm
Starter	Electric
Oil capacity:	6.2 L (6.6 US. qt, 5.5 Imp. qt.)
Coolant capacity:	9.5 L (10 US. qt, 8.4 Imp. qt.)

Transmission and chassis
Chassis	4×2 2WD
Steering type	Manual
Brakes	Mechanical drum
Transmission model
Transmission type	Sliding gear with dry disc clutch
Gears	12 forward and 4 reverse
Transmission oil capacity	22.7 L (6 US. gal, 5 Imp. gal.)
Tires
Front tires	Ag: 6.00-16
Rear tires	Ag: 12.4/11-28

Three-Point Hitch
Caterogy	I
Control type	–
Lift capacity (at ends)	1,600 kg (3,530 lbs)
PTO (Power take-off shaft)
Rear PTO type	Live
Rear PTO speed	540/1,000 rpm
Hydraulic system
Hydraulic type	–
Pressure	2000 psi (137.9 bar)
Pump flow	7.4 gpm (28 lpm)

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