David Brown 850

David Brown 850The David Brown 850 is a 2WD utility tractor manufactured by David Brown in Meltham Mills, Huddersfield, England from 1960 to 1965.

The David Brown 850 is equipped with one of two engines: a 2.5 L (154.0 cu·in) four-cylinder diesel engine or a 2.5 L (154.0 cu·in) four-cylinder gasoline engine and unsynchronized gear transmission with 6 forward and 2 reverse gears abd dry disc clutch.

The tractor could be equipped with the following engines:

  • David Brown. It is a 2.5 L, 2,524 cm2, (154.0 cu·in) four-cylinder natural aspirated diesel engine with 89.0 mm (3.5 in) of the cylinder bore and 102.0 mm (4.02 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 35.5 PS (26.1 kW; 35 HP) at 2,000 rpm of output power.
  • David Brown. It is a 2.5 L, 2,524 cm2, (154.0 cu·in) four-cylinder natural aspirated gasoline engine. The cylinder bore is 89.0 mm (3.5 in) and the piston stroke is 102.0 mm (4.02 in). The compression ratio rating is 6.25:1. This engine produced 35.5 PS (26.1 kW; 35 HP) at 2,000 rpm of output power.

The David Brown 850 is equipped with manual steering, differential mechanical expanding shoe brakes, open operator station, and 40.0 liters (10.6 US gal.; 8.8 Imp. gal) fuel tank.

David Brown 850 Specifications

General Specifications
Model David Brown 850
Length 2,880 mm (113.4 in)
Width
Height (hood) 1,310 mm (51.6 in)
Wheel base 1,910 mm (75.2 in)
Weight (operating) Gas: 1,860 kg (4,101 lbs)
Diesel: 1,895 kg (4,178 lbs)
Fuel tank capacity 40.0 liters (10.6 US gal.; 8.8 Imp. gal)
Battery Gas: 12V; Diesel: 2x6V
Cabin type Open operator station
Engine
Engine model David Brown
Engine type Four-stroke, liquid-cooled, inline
Cylinders 4
Fuel type Diesel
Displacement 2.5 L, 2,524 cm2, (154.0 cu·in)
Bore and stroke 89.0 mm X 102.0 mm (3.5 in X 4.02 in)
Compression ratio 17.0:1
Horsepower 35.5 PS (26.1 kW; 35 HP) at 2,000 rpm
Starter Electric
Oil capacity: 9.6 L (10.1 US. qt, 8.4 Imp. qt.)
Coolant capacity: 13.6 L (14.4 US. qt, 12 Imp. qt.)
Engine
Engine model David Brown
Engine type Four-stroke, liquid-cooled, inline
Cylinders 4
Fuel type Gasoline
Displacement 2.5 L, 2,524 cm2, (154.0 cu·in)
Bore and stroke 89.0 mm X 102.0 mm (3.5 in X 4.02 in)
Compression ratio 6.25:1
Horsepower 35.5 PS (26.1 kW; 35 HP) at 2,000 rpm
Starter Electric
Transmission and chassis
Chassis 4×2 2WD
Steering type Manual
Brakes Differential mechanical expanding shoe
Final drive Spur gear
Transmission model
Transmission type Unsynchronized gear with dry disc clutch
Gears 6 forward and 2 reverse
Speed Forward: 22.8 kmh (14.2 mph) Reverse: 12.4 (7.7 mph)
Tires
Front tires Ag: 5.00-15
Rear tires Ag: 10-28
PTO (Power take-off shaft)
Rear PTO type Transmission or live (option)
Rear PTO speed 540/1,000 rpm