David Brown 990 Implematic VS Allis Chalmers 4W-305 specs comparison

David Brown 990 Implematic 1961 comparison online with competitors

David Brown 990 Implematic

General Infos
Make David Brown
Model 990 Implematic
Country United states
Production From 1961  Until 1980
Price -
Tractor type Utility tractor
Fuel diesel
Service repair manual David Brown 990 Implematic Manual

Dimensions, sizes and tires
AG front tires 6.00-16
AG rear tires 11-32
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
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 -
Turning radius -
Rear tread size 52/56/60/64/68/72/76 inches
Front tread size 52/56/60/64/68/72/76 inches
Turning radius -

Horsepower and engin specs
Engine capacity 185.8 ci or 3.0 L
Cylinders 4 cylinders
Engine power 52 hp or 38.8 kW
Engine RPM 2200 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size 13.74 gal or 52.0 L
Oil capacity 7.8 qts or 7.4 L
Oil change -
Starter motor -
Starter volts 12 V
Parts And Accessories David Brown 990 Implematic Parts
Electrical and battery specs
Batteries number 2
Batteries voltage 6 V
Battries Amps -
Cold Amps -
Ground force -
Charging system generator
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type partially synchronized
Trans gears 12 forward and 4 reverse
Clutch system 279mm dry disc
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive -
Steering manual
Braking system differential mechanical expanding shoe
Cabin type Open operator station
Differentiel lock mechanical rear
Hydraulics specifications
System open center
Valves -
Pump flow -
SVC flow -
Steering flow -
Tank capacity -
Hydraulic pressure 2000 psi or 137.9 bar
Max flow 7.4 gpm or 28.0 lpm
Drawbar specifications
Drawbar type -
Claimed power 43 hp or 32.1 kW
Drawbar horsepower 43.47 hp or 32.4 kW
Fuel consumption 3.4 gal/hour or 12.9 l/hour
Pulling power 6,039 lbs or 2739 kg
Power take-off (PTO) specs
Claimed power 48 hp or 35.8 kW
Real power 48.49 hp or 36.2 kW
Engine @RPM 540@1800 (rpm)
PTO Clutch dry disc
Rear PTO transmission
Rear PTO RPM 540 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption 3.0 gal/hour or 11.4 l/hour
3 point hitch specifiations
Hitch system -
Rear hitch II/I
Rear hitch lift -
Front hitch -
Front hitch lift -

Allis Chalmers 4W-305 1982 comparison online with competitors

Allis Chalmers 4W-305

General Infos
Make Allis Chalmers
Model 4W-305
Country United states
Production From 1982  Until 1985
Price 93,685  USD
Tractor type Four wheel Drive (4WD) tractor
Fuel diesel
Service repair manual Allis Chalmers 4W-305 Manual

Dimensions, sizes and tires
AG front tires 18.4-38
AG rear tires 18.4-38
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 21,826 lbs or 9900 kg
Length -
Width -
Height -
Wheelbase 126 inches [320 cm]
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 731 ci or 12.0 L
Cylinders 6 cylinders
Engine power 305 hp or 227.4 kW
Engine RPM -
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size 200 gal or 757.0 L
Oil capacity -
Oil change -
Starter motor -
Starter volts -
Parts And Accessories Allis Chalmers 4W-305 Parts
Electrical and battery specs
Batteries number -
Batteries voltage -
Battries Amps -
Cold Amps -
Ground force -
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type -
Trans gears 20 forward and 4 reverse
Clutch system -
Cabine and mechanical specs
Wheel drive 4x4 articulated 4WD
Final drive -
Steering -
Braking system -
Cabin type standard
Differentiel lock -
Hydraulics specifications
System -
Valves -
Pump flow -
SVC flow -
Steering flow -
Tank capacity -
Hydraulic pressure -
Max flow -
Drawbar specifications
Drawbar type -
Claimed power -
Drawbar horsepower -
Fuel consumption -
Pulling power -
Power take-off (PTO) specs
Claimed power 254 hp or 189.4 kW
Real power -
Engine @RPM -
PTO Clutch -
Rear PTO independent
Rear PTO RPM 1000 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption -
3 point hitch specifiations
Hitch system -
Rear hitch III,IV
Rear hitch lift -
Front hitch -
Front hitch lift -

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