David Brown 770 Selectamatic VS Chamberlain 4090 specs comparison

David Brown 770 Selectamatic

General Infos

Make	David Brown
Model	770 Selectamatic
Country	United states
Production	From 1965  Until 1970
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	David Brown 770 Selectamatic Manual

Dimensions, sizes and tires

AG front tires	5.50-16
AG rear tires	11.2/10-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	3110 lbs or 1410 kg
Length	112.5 inches [285 cm]
Width	64 inches [162 cm]
Height	-
Wheelbase	75 inches [190 cm]
Ground clearance	-
Turning radius	-
Rear tread size	48/52/56/60/64/68/72/76 inches
Front tread size	48/52/56/60/64/68/72/76 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	146.1 ci or 2.4 L
Cylinders	3 cylinders
Engine power	36 hp or 26.8 kW
Engine RPM	2055 (rpm)
Torque	100 lb-ft or 135.6 Nm
Torque RPM	1400 (rpm)
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	11.4 gal or 43.1 L
Oil capacity	7.8 qts or 7.4 L
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	David Brown 770 Selectamatic Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	96 amps
Cold Amps	-
Ground force	negative
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	gear
Trans gears	12 forward and 4 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	spur gear
Steering	manual
Braking system	mechanical drum
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	-

Drawbar specifications

Drawbar type	-
Claimed power	27.5 hp or 20.5 kW
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	32 hp or 23.9 kW
Real power	-
Engine @RPM	540@1620 (rpm)
PTO Clutch	-
Rear PTO	live
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	I
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Chamberlain 4090

General Infos

Make	Chamberlain
Model	4090
Country	Australia
Production	From 1985  Until 1986
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Chamberlain 4090 Manual

Dimensions, sizes and tires

AG front tires	11.00x16
AG rear tires	23.1x3
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	11,671 lbs or 5293 kg
Length	-
Width	-
Height	-
Wheelbase	104.2 inches [264 cm]
Ground clearance	-
Turning radius	18.4 feet [5.6 m]
Rear tread size	62.2 to 97.6 inches
Front tread size	58.3 to 78 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	359 ci or 5.9 L
Cylinders	6 cylinders
Engine power	100.5 hp or 74.9 kW
Engine RPM	2200 (rpm)
Torque	276.6 lb-ft or 375.1 Nm
Torque RPM	1300 (rpm)
Fuel type	diesel
Fuel injection	-
Fuel tank size	57.3 gal or 216.9 L
Oil capacity	12 qts or 11.4 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Chamberlain 4090 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	Hi-Lo
Trans type	partial power shift
Trans gears	12 forward and 4 reverse
Clutch system	14-inch dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	4
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	7.2 gal or 27.3 L
Hydraulic pressure	2500 psi or 172.4 bar
Max flow	15.6 gpm or 59.0 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	94 hp or 70.1 kW
Real power	-
Engine @RPM	-
PTO Clutch	hydraulic disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	top-link sensing
Rear hitch	II
Rear hitch lift	5,355 lbs or 2429 kg
Front hitch	-
Front hitch lift	-

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