David Brown 990 Implematic VS John Deere 4430 specs comparison

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	-

John Deere 4430

General Infos

Make	John Deere
Model	4430
Country	United states
Production	From 1973  Until 1977
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 4430 Manual

Dimensions, sizes and tires

AG front tires	7.50-15
AG rear tires	20.8-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	9732 lbs or 4414 kg
Length	160.75 inches [408 cm]
Width	89.625 inches [227 cm] (axle)
Height	114 inches [289 cm]
Wheelbase	106.6 inches [270 cm]
Ground clearance	-
Turning radius	-
Rear tread size	60 to 90 inches
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	404 ci or 6.6 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	46 gal or 174.1 L
Oil capacity	17 qts or 16.1 L
Oil change	100 h
Starter motor	Delco-Remy electric
Starter volts	12 V
Parts And Accessories	John Deere 4430 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	6 V
Battries Amps	-
Cold Amps	800
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	John Deere Power Shift
Trans type	full power shift
Trans gears	8 forward and 4 reverse
Clutch system	hydraulic wet discs

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	power
Braking system	hydraulic wet disc
Cabin type	Optional Roll-Gard ROPS
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	1 to 3
Pump flow	22 gpm or 83.3 lpm
SVC flow	-
Steering flow	-
Tank capacity	11 gal or 41.6 L
Hydraulic pressure	2250 psi or 155.1 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	108.46 hp or 80.9 kW
Drawbar horsepower	104.99 hp or 78.3 kW
Fuel consumption	8.1 gal/hour or 30.7 l/hour
Pulling power	12032 lbs or 5457 kg

Power take-off (PTO) specs

Claimed power	125.88 hp or 93.9 kW
Real power	125.88 hp or 93.9 kW
Engine @RPM	540@2200 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	8.1 gal/hour or 30.7 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	II
Rear hitch lift	4550 lbs or 2063 kg
Front hitch	-
Front hitch lift	-

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