General informations and Service Manual
Make
David Brown
Model
990 Implematic
Company country
United states
Production years
From 1961 Until 1980
Tractor type
Utility tractor
Fuel
diesel
Price
-
Total build
-
Service repair manual David Brown 990 Implematic Manual
Dimensions, weight and tires specs
AG front tires
6.00-16
AG rear tires
11-32
Weight
4272 lbs or 1937 kg
Length
118 inches [299 cm]
Width
67 inches [170 cm]
Height
-
Wheelbase
76.75 inches [194 cm]
Ground clearance
-
Rear tread size
52/56/60/64/68/72/76 inches
Front tread size
52/56/60/64/68/72/76 inches
Horsepower and engine specs
Engine size
185.8 ci or 3.0 L
Number of cylinders
4 cylinders
Horsepower
52 hp or 38.8 kW
Power RPM
2200 (rpm)
Engine torque
-
Engine torque RPM
-
Fuel type
diesel
Fuel tank capacity
13.74 gal or 52.0 L
Compression ratio
17:1
Bore stroke
3.625x4.50 inches or (92 x 114 mm)
Oil tank capacity
7.8 qts or 7.4 L
Coolant tank capacity
14.4 qts or 13.6 L
Battery and electrical specs
Number of batteries
2
Battery voltage
6 V
Electric ground force
-
Electric charging system
generator
Engine starter volts
12 V
Parts And Accessories David Brown 990 Implematic Parts
Clutch and transmission specs
Transmission type
partially synchronized
Transmission gears
12 forward and 4 reverse
Clutch system
279mm dry disc
Mechanical and cab specs
Wheel drive
4x2 2WD
Steering system
manual
Braking system
differential mechanical expanding shoe
Cabin type
Open operator station
Differentiel lock
mechanical rear
Hydraulic specs
Hydraulic system
open center
Hydraulic pressure
2000 psi or 137.9 bar
Hydraulic max flow
7.4 gpm or 28.0 lpm
Drawbar specs
Drawbar claimed power
43 hp or 32.1 kW
Drawbar real power
43.47 hp or 32.4 kW
Drawbar fuel consumption
3.4 gal/hour or 12.9 l/hour
Max drawbar pull
6,039 lbs or 2739 kg
Power take-off (PTO) specs
PTO claimed power
48 hp or 35.8 kW
PTO real power
48.49 hp or 36.2 kW
PTO engine @RPM
540@1800 (rpm)
PTO clutch system
dry disc
Rear PTO system
transmission
Rear PTO RPM
540 (rpm)
Front PTO system
-
PTO fuel consumption
3.0 gal/hour or 11.4 l/hour
3 point hitch specs
Hitch control system
-
Rear hitch
II/I
Rear hitch lift
-
Detailed review of David Brown 990 Implematic
David Brown produced its 990 Implematic farm tractor model From 1961 Until 1980 in United states with a Open operator station cabin. service repair manual mechanical and electrical here
