David Brown 1690 VS Allis Chalmers 7020 specs comparison

David Brown 1690

General Infos

Make	David Brown
Model	1690
Country	United states
Production	From 1980  Until 1984
Price	30,000  USD
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	David Brown 1690 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	18.4-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	8755 lbs or 3971 kg
Length	-
Width	-
Height	-
Wheelbase	100.5 inches [255 cm]
Ground clearance	-
Turning radius	-
Rear tread size	60.75 to 85 inches
Front tread size	59 to 71 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	329 ci or 5.4 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	26 gal or 98.4 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	David Brown 1690 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	-
Trans type	partial power shift
Trans gears	12 forward and 4 reverse
Clutch system	hydraulic dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Two-post ROPS
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	-
Pump flow	20 gpm or 75.7 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	72.55 hp or 54.1 kW
Fuel consumption	5.5 gal/hour or 20.8 l/hour
Pulling power	10536 lbs or 4779 kg

Power take-off (PTO) specs

Claimed power	90 hp or 67.1 kW
Real power	87.76 hp or 65.4 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	5.5 gal/hour or 20.8 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	II
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Allis Chalmers 7020

General Infos

Make	Allis Chalmers
Model	7020
Country	United states
Production	From 1978  Until 1981
Price	39,378  USD
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Allis Chalmers 7020 Manual

Dimensions, sizes and tires

AG front tires	10.00x16
AG rear tires	24.5x32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	10,820 lbs or 4907 kg
Length	163 inches [414 cm]
Width	92.6 inches [235 cm]
Height	-
Wheelbase	106 inches [269 cm]
Ground clearance	21 inches [53 cm] (front axle)
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	301 ci or 4.9 L
Cylinders	6 cylinders
Engine power	146 hp or 108.9 kW
Engine RPM	2300 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	51 gal or 193.0 L
Oil capacity	20 qts or 18.9 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Allis Chalmers 7020 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Power Shift
Trans type	partial power shift
Trans gears	12 forward and 2 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	inboard planetary
Steering	hydrostatic power
Braking system	differential power wet disc
Cabin type	Acousta cab standard with heat
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	2 or 3
Pump flow	22 gpm or 83.3 lpm
SVC flow	-
Steering flow	9.5 gpm or 36.0 lpm
Tank capacity	-
Hydraulic pressure	-
Max flow	45 gpm or 170.3 lpm

Drawbar specifications

Drawbar type	-
Claimed power	106 hp or 79.0 kW
Drawbar horsepower	102.09 hp or 76.1 kW
Fuel consumption	7.8 gal/hour or 29.5 l/hour
Pulling power	11,964 lbs or 5426 kg

Power take-off (PTO) specs

Claimed power	123 hp or 91.7 kW
Real power	125.51 hp or 93.6 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	7.8 gal/hour or 29.5 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	3/2
Rear hitch lift	6,680 lbs or 3030 kg
Front hitch	-
Front hitch lift	-

Add a tractor