David Brown 990 Selectamatic (1971-1980)

David Brown 990 SelectamaticThe David Brown 990 Selectamatic is a 2WD or 4WD utility tractor from the Selectamatic series. This tractor was manufactured by David Brown in Meltham Mills, Huddersfield, England from 1971 to 1980. The David Brown 990 Selectamatic is equipped with a 3.2 L (195.0 cu·in) four-cylinder diesel engine and a partially synchronized transmission with 12 forward and 4 reverse gears and dry disc clutch.

The David Brown 990 Selectamatic utility tractor used the David Brown engine. It is a 3.2 L, 3,195 cm2, (195.0 cu·in) four-cylinder natural aspirated diesel engine with 100.0 mm (3.94 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 58.9 PS (43.3 kW; 58.0 HP) at 2,200 rpm of output power.

The David Brown 990 Selectamatic is equipped with hydrostatic power steering, hydraulic drum brakes, a weather frame cab (standard), and 67.8 liters (17.9 US gal.; 14.9 Imp. gal) fuel tank.

David Brown 990 Selectamatic Specifications

General Specifications
Model David Brown 990 Selectamatic
Length 3,270 mm (128.7 in)
Width 1,700 mm (66.9 in)
Height
Wheel base 2,080 mm (81.9 in)
Ground clearance 2WD: 530 mm (20.9 in)
4WD: 380 mm (15 in)
Weight 2WD: 2,610 kg (5,754 lbs)
4WD: 3,040 kg (6,702 lbs)
Fuel tank capacity 67.8 liters (17.9 US gal.; 14.9 Imp. gal)
Battery 12V, 96Ah
Cabin type Weather frame cab (standard)
Engine
Engine model David Brown
Engine type Four-stroke, liquid-cooled, inline
Cylinders 4
Fuel type Diesel
Displacement 3.2 L, 3,195 cm2, (195.0 cu·in)
Bore and stroke 100.0 mm X 102.0 mm (3.94 in X 4.02 in)
Compression ratio 17.0:1
Horsepower 58.9 PS (43.3 kW; 58.0 HP) at 2,200 rpm
Starter Electric
Oil capacity: 7.5 L (7.9 US. qt, 6.6 Imp. qt.)
Coolant capacity: 14.0 L (14.8 US. qt, 12.3 Imp. qt.)
Transmission and chassis
Chassis 4×2 2WD or 4×4 MFWD 4WD
Steering type Hydrostatic power
Brakes Hydraulic drum
Transmission model
Transmission type Partially synchronized with dry disc clutch
Gears 12 forward and 4 reverse
Transmission oil capacity 27.0 L (7.1 US. gal, 5.9 Imp. gal.)
Tires
Front tires Ag: 6.00-19 (2WD), 9.5-24 (4WD)
Rear tires Ag: 12.4-36
Three-Point Hitch
Category II/I
Control type
Lift capacity (at ends) 907 kg (2,000 lbs)
PTO (Power take-off shaft)
Rear PTO type Transmission or live (option)
Rear PTO speed 540/1000 rpm
Hydraulic system
Hydraulic type Open center
Pressure 2000 psi (137.9 bar)
Total flow 7.4 gpm (28 lpm)