David Brown 4600 Selectamatic VS NorTrac 250AS specs comparison

David Brown 4600 Selectamatic

General Infos

Make	David Brown
Model	4600 Selectamatic
Country	United states
Production	From 1968  Until 1971
Price	4,600  USD
Tractor type	Utility tractor
Fuel	gasoline
Service repair manual	David Brown 4600 Selectamatic Manual

Dimensions, sizes and tires

AG front tires	7.50-16
AG rear tires	14.9/13-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	4300 lbs or 1950 kg
Length	121.5 inches [308 cm]
Width	68.375 inches [173 cm] (min)
Height	-
Wheelbase	79.75 inches [202 cm]
Ground clearance	-
Turning radius	-
Rear tread size	52 to 80 inches
Front tread size	52 to 72 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	164.4 ci or 2.7 L
Cylinders	3 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	140 lb-ft or 189.8 Nm
Torque RPM	1400 (rpm)
Fuel type	gasoline
Fuel injection	-
Fuel tank size	13.75 gal or 52.0 L
Oil capacity	6.75 qts or 6.4 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	David Brown 4600 Selectamatic 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	-
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	expanding shoe
Cabin type	Open operator station
Differentiel lock	rear diff lock standard

Hydraulics specifications

System	Selectamatic
Valves	0 to 2
Pump flow	7.3 gpm or 27.6 lpm
SVC flow	-
Steering flow	-
Tank capacity	6 gal or 22.7 L
Hydraulic pressure	2000 psi or 137.9 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	38.34 hp or 28.6 kW
Fuel consumption	4.0 gal/hour or 15.1 l/hour
Pulling power	5421 lbs or 2458 kg

Power take-off (PTO) specs

Claimed power	46 hp or 34.3 kW
Real power	43.17 hp or 32.2 kW
Engine @RPM	540@1823 (rpm)
PTO Clutch	-
Rear PTO	live
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	3.7 gal/hour or 14.0 l/hour

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	II/I
Rear hitch lift	1800 lbs or 816 kg
Front hitch	-
Front hitch lift	-

NorTrac 250AS

General Infos

Make	NorTrac
Model	250AS
Country	China
Production	From 1986  Until 1990
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	NorTrac 250AS Manual

Dimensions, sizes and tires

AG front tires	6.00-16
AG rear tires	10-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	4,300 lbs or 1950 kg
Length	120 inches [304 cm]
Width	58 inches [147 cm]
Height	-
Wheelbase	69 inches [175 cm]
Ground clearance	17 inches [43 cm]
Turning radius	-
Rear tread size	47.1 to 57.7 inches
Front tread size	47 to 55 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	127 ci or 2.1 L
Cylinders	2 cylinders
Engine power	31 hp or 23.1 kW
Engine RPM	1800 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	14 gal or 53.0 L
Oil capacity	7.4 qts or 7.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	NorTrac 250AS Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	6 V
Battries Amps	-
Cold Amps	900
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	50 amps

Clutch and gearbox specs

Trans system	sliding gear
Trans type	-
Trans gears	8 forward and 6 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	mechanical
Braking system	differential mechanical band
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	open
Valves	1
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	2 gal or 7.6 L
Hydraulic pressure	2060 psi or 142.0 bar
Max flow	4.2 gpm or 15.9 lpm

Drawbar specifications

Drawbar type	-
Claimed power	22 hp or 16.4 kW
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	24 hp or 17.9 kW
Real power	-
Engine @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	-
Rear hitch	II
Rear hitch lift	1,322 lbs or 599 kg
Front hitch	-
Front hitch lift	-

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