David Brown 990 Tractor (1980)
Manufacturer:David Brown
Price:N/A
Series:
Model:990
Equipment Type: Utility Tractors
Factory:Meltham Mills, Huddersfield, England
Full Specifications
NEBRASKA TRACTOR TEST 903 2
- Description
- 3L diesel 6-speed 2WD June 11 - 19, 1965 Link: Nebraska Tractor Test 903 file PTO performance Drawbar performance Gear 3 used for power test Gear 1 used for pull test
- Power at rated engine speed
- 51.60hp / 38.5kW
- Fuel use
- 3.4gal/hour / 12.9l/hour
- Power at rated PTO speed
- 48.49hp / 36.2kW
- Max power
- 43.47hp / 32.4kW
- Max pull
- 6,039lbs / 2739kg
DAVID BROWN 990 POWER
- Engine
- 52hp / 38.8kW
- Drawbar (claimed)
- 43hp / 32.1kW
- PTO (claimed)
- 48hp / 35.8kW
- Drawbar (tested)
- 43.47hp / 32.4kW
- PTO (tested)
- 51.60hp / 38.5kW
ENGINE DETAIL
- Description
- David Brown diesel 4-cylinder liquid-cooled
- Displacement
- 185.8ci / 3.0L
- Bore/Stroke
- 3.625x4.50inches / 92x 114mm
- Power
- 52hp / 38.8kW
- Air cleaner
- oil bath
- Compression
- 17:1
- Rated RPM
- 2200
- Operating RPM
- 700-2200
- Starter volts
- 12
- Oil capacity
- 7.8qts / 7.4L
- Coolant capacity
- 14.4qts / 13.6L
DAVID BROWN 990 ENGINE
- Description
- David Brown 3.0L 4-cyl diesel
- Fuel tank
- 13.74gal / 52.0L
TRANSMISSIONS OVERVIEW
- Description
- 6-speed gear 12-speed partially synchronized
TRANSMISSION 1
- Type
- gear
- Gears
- 6 forward and 2 reverse
- Clutch
- 279mm dry disc
- Description
- Three gears (1-3) plus reverse (R) in low and high ranges.
TRANSMISSION 2
- Type
- partially synchronized
- Gears
- 12 forward and 4 reverse
- Description
- Twelve-speed transmission introduced in 1963
MECHANICAL
- Chassis
- 4x2 2WD
- Differential lock
- mechanical rear
- Steering
- manual hydrostatic power (optional)
- Brakes
- differential mechanical expanding shoe
- Cab
- Open operator station
- Transmissions
- 6-speed gear 12-speed partially synchronized
HYDRAULICS
- Type
- open center
- Pressure
- 2000psi / 137.9bar
- Total flow
- 7.4gpm / 28.0lpm
TRACTOR HITCH
- Rear Type
- II/I
POWER TAKE-OFF (PTO)
- Rear PTO
- transmission/live (optional)
- Clutch
- dry disc
- Rear RPM
- 540/1000 (1.375)
- Engine RPM
- 540@1800 (Low) / 540@1100 (High) / 1000@2000
DAVID BROWN 990 TIRES
- Standard tires (ag)
- Front: 6.00-16. Rear: 11-32
DIMENSIONS
- Wheelbase
- 76.75inches / 194cm
- Length
- 118inches / 299cm
- Width
- 67inches / 170cm
- Height (hood)
- 56inches / 142cm
- Clearance (front axle)
- 20inches / 50cm
- Front tread
- 52/56/60/64/68/72/76inches / 132/142/152/162/172/182/193cm
- Rear tread
- 52/56/60/64/68/72/76inches / 132/142/152/162/172/182/193cm
DAVID BROWN 990 WEIGHT
- Operating
- 4272lbs / 1937kg 4312lbs / 1955kg (live PTO)
- Ballasted
- 5880lbs / 2667kg
DIMENSIONS & TIRES
- Wheelbase
- 76.75inches / 194cm
- Weight
- 4272 to 4312 pounds
- Front tire
- 6.00-16
- Rear tire
- 11-32
990 SERIAL NUMBERS
- Location
- Frame, right side
- 1961
- 440001
- 1962
- 441323
- 1963
- 450376
- 1964
- 460376
- 1965
- 472273
- 1966
- 483768
- 1967
- 496283
- 1968
- 504690
- 1969
- 808150
- 1970
- 818301
- 1971
- 826009
- 1972
- 850600
- 1973
- 854403
- 1974
- 859367
- 1975
- 863900
- 1976
- 11070001
- 1977
- 11080236
- 1978
- 11089141
- 1979
- 11096828
- 1980
- 11104577
ELECTRICAL
- Charging system
- generator
- Batteries
- 2
- Battery volts
- 6
