David Brown 990 Implematic VS International Harvester 684 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	-

International Harvester 684

General Infos

Make	International Harvester
Model	684
Country	United states
Production	From 1977  Until 1984
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	International Harvester 684 Manual

Dimensions, sizes and tires

AG front tires	7.50-16
AG rear tires	16.9-30
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	5720 lbs or 2594 kg
Length	142 inches [360 cm]
Width	78.5 inches [199 cm]
Height	100 inches [254 cm]
Wheelbase	83.75 inches [212 cm]
Ground clearance	10.7 inches [27 cm]
Turning radius	12.75 feet [3.9 m]
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	239 ci or 3.9 L
Cylinders	4 cylinders
Engine power	69 hp or 51.5 kW
Engine RPM	2400 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	20 gal or 75.7 L
Oil capacity	8.8 qts or 8.3 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	International Harvester 684 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	-
Charging Volts	-
Charging Amps	45 amps

Clutch and gearbox specs

Trans system	Torque Amplifier
Trans type	two-speed power shift
Trans gears	16 forward and 8 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	power
Braking system	independent hydraulic wet disc
Cabin type	ROPS canopy or cab optional
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	1 or 2
Pump flow	13 gpm or 49.2 lpm
SVC flow	-
Steering flow	-
Tank capacity	9 gal or 34.1 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	55.9 hp or 41.7 kW
Drawbar horsepower	54.56 hp or 40.7 kW
Fuel consumption	4.1 gal/hour or 15.5 l/hour
Pulling power	6858 lbs or 3110 kg

Power take-off (PTO) specs

Claimed power	62.5 hp or 46.6 kW
Real power	58.75 hp or 43.8 kW
Engine @RPM	-
PTO Clutch	hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	3.8 gal/hour or 14.4 l/hour

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	II
Rear hitch lift	3600 lbs or 1632 kg
Front hitch	-
Front hitch lift	-

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