David Brown 4600 Selectamatic VS John Deere 2850 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	-

John Deere 2850

General Infos

Make	John Deere
Model	2850
Country	United states
Production	From 1986  Until 1994
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	John Deere 2850 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	14.9R38
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	7694 lbs or 3489 kg
Length	167.1 inches [424 cm]
Width	81.4 inches [206 cm]
Height	100.3 inches [254 cm] (low-profile)
Wheelbase	90 inches [228 cm]
Ground clearance	-
Turning radius	27.6 feet [8.4 m]
Rear tread size	59.1 to 78.7 inches
Front tread size	53.5 to 79.1 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	239 ci or 3.9 L
Cylinders	4 cylinders
Engine power	86 hp or 64.1 kW
Engine RPM	2300 (rpm)
Torque	232.3 lb-ft or 315.0 Nm
Torque RPM	1500 (rpm)
Fuel type	diesel
Fuel injection	-
Fuel tank size	22.2 gal or 84.0 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 2850 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	55 amps
Cold Amps	-
Ground force	negative
Charging system	-
Charging Volts	-
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	Hi-Lo
Trans type	two-speed power shift
Trans gears	16 forward and 8 reverse
Clutch system	hydraulic cerametallic disc

Cabine and mechanical specs

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

Hydraulics specifications

System	closed-center constant presure
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2756 psi or 190.0 bar
Max flow	11.6 gpm or 43.9 lpm

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	1000@2172 (rpm)
PTO Clutch	hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	independent
Front PTO RPM	1000 (rpm)
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	positon and draft control
Rear hitch	II
Rear hitch lift	8003 lbs or 3630 kg
Front hitch	II
Front hitch lift	3594 lbs or 1630 kg

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