David Brown 780 tractor specifications

1967 - 1971

Production

Production Manufacturer:David Brown
Factory:Meltham Mills, Huddersfield, England
Total built:8,986
Original price:$4,000 (1971 )

David Brown 780 Power

David Brown 780 Power Engine (gross):46 hp
34.3 kW
Drawbar (claimed):38.9 hp
29.0 kW
PTO (claimed):42.9 hp
32.0 kW *Maximum PTO power. Rated power at 540 RPM was 37.1 HP.

David Brown 780 Engine

David Brown 780 Engine David Brown 2.7L 3-cyl diesel Fuel tank:9.5 gal
36.0 L
Engine details ...

1967 - 1971

Engine Detail

Engine Detail
David Brown
diesel
3-cylinder
liquid-cooled
Displacement:	164.4 ci 2.7 L
Bore/Stroke:	3.9375x4.50 inches 100 x 114 mm
Power (gross):	46 hp 34.3 kW
Compression:	17:1
Rated RPM:	2200
Idle RPM:	700-2200
Firing order:	1-2-3
Oil capacity:	6.5 qts 6.2 L
Coolant capacity:	10 qts 9.5 L

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
Brakes:mechanical drum
Transmissions:12-speed
6-speed
Transmission details ...

1967 - 1971

Transmissions overview

Transmissions overview
12-speed
6-speed

Transmission

Transmission
Transmission:	sliding gear
Gears:	12 forward and 4 reverse
Clutch:	dry disc
Oil capacity:	24 qts 22.7 L

Transmission

Transmission
Gears:	6 forward and 2 reverse
Clutch:	dry disc

Hydraulics

Hydraulics Pressure:2000 psi
137.9 bar
Pump flow:7.4 gpm
28.0 lpm
Oil type:

	SAE20W30
	SAE20W40

Tractor hitch

Tractor hitch Rear Type:I
Rear lift:1600 lbs
725 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:live
Rear RPM:540/1000
Engine RPM:540@1828
1000@2000

Dimensions & Tires

Dimensions & Tires Wheelbase:75.8 inches
192 cm
Weight:3,470 lbs
1573 kg
Front tire:6.00-16
Rear tire:12.4/11-28
Full dimensions and tires ...

1967 - 1971

David Brown 780 Tires

David Brown 780 Tires
Ag front:	6.00-16
Ag rear:	12.4/11-28

Dimensions

Dimensions
Wheelbase:	75.8 inches 192 cm
Length:	111.75 inches 283 cm
Width:	64 inches 162 cm
Height:	82.5 inches 209 cm
Weight:	3,470 lbs 1573 kg
Ground clearance:	11.75 inches 29 cm

780 Serial Numbers

780 Serial Numbers Location:Front-right side of chassis, just behind the radiator
1967:600001
1968:600879
1969:602853
1970:606109
1971:609665

how to read serial numbers...