David Brown 3800 Selectamatic VS AGCO Allis 6690 specs comparison

David Brown 3800 Selectamatic

General Infos

Make	David Brown
Model	3800 Selectamatic
Country	United states
Production	From 1968  Until 1971
Price	4,000  USD
Tractor type	Utility tractor
Fuel	gasoline
Service repair manual	David Brown 3800 Selectamatic Manual

Dimensions, sizes and tires

AG front tires	14.9/13-24
AG rear tires	13.6/12-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	3885 lbs or 1762 kg
Length	115.625 inches [293 cm]
Width	64.5 inches [163 cm] (min)
Height	-
Wheelbase	76 inches [193 cm]
Ground clearance	-
Turning radius	-
Rear tread size	48 to 76 inches
Front tread size	48 to 72 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	146.1 ci or 2.4 L
Cylinders	3 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	115 lb-ft or 155.9 Nm
Torque RPM	1400 (rpm)
Fuel type	gasoline
Fuel injection	-
Fuel tank size	9.5 gal or 36.0 L
Oil capacity	6.75 qts or 6.4 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	David Brown 3800 Selectamatic Parts

Electrical and battery specs

Batteries number	1
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	mechanical shoe
Cabin type	Open operating station
Differentiel lock	rear diff lock standard

Hydraulics specifications

System	Selectamatic
Valves	-
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	32.13 hp or 24.0 kW
Fuel consumption	3.4 gal/hour or 12.9 l/hour
Pulling power	4419 lbs or 2004 kg

Power take-off (PTO) specs

Claimed power	39 hp or 29.1 kW
Real power	37.24 hp or 27.8 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	live
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	3.3 gal/hour or 12.5 l/hour

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	I
Rear hitch lift	1600 lbs or 725 kg
Front hitch	-
Front hitch lift	-

AGCO Allis 6690

General Infos

Make	AGCO Allis
Model	6690
Country	United states
Production	From 1991  Until 1997
Price	35,000  USD
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	AGCO Allis 6690 Manual

Dimensions, sizes and tires

AG front tires	7.50-18
AG rear tires	16.9R3
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	6,724 lbs or 3050 kg
Length	161 inches [408 cm]
Width	82.4 inches [209 cm]
Height	111.2 inches [282 cm]
Wheelbase	92.8 inches [235 cm]
Ground clearance	17.6 inches [44 cm]
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	244 ci or 4.0 L
Cylinders	4 cylinders
Engine power	86.91 hp or 64.8 kW
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	28.27 gal or 107.0 L
Oil capacity	9.2 qts or 8.7 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	AGCO Allis 6690 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	100 amps
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	-
Trans type	partial power shift
Trans gears	30 forward and reverse
Clutch system	305mm dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydrualic wet disc
Cabin type	Flat-deck with four-post ROPS
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	2
Pump flow	11.23 gpm or 42.5 lpm
SVC flow	-
Steering flow	-
Tank capacity	15.2 gal or 57.5 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	68.53 hp or 51.1 kW
Fuel consumption	5.3 gal/hour or 20.1 l/hour
Pulling power	-

Power take-off (PTO) specs

Claimed power	80.88 hp or 60.3 kW
Real power	80.85 hp or 60.3 kW
Engine @RPM	540@2200 (rpm)
PTO Clutch	124.5mm hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	4.7 gal/hour or 17.8 l/hour

3 point hitch specifiations

Hitch system	position and draft control with lower-link sensing
Rear hitch	II/I
Rear hitch lift	6,790 lbs or 3079 kg
Front hitch	-
Front hitch lift	-

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