David Brown 3800 Selectamatic VS Challenger 75D 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	-

Challenger 75D

General Infos

Make	Challenger
Model	75D
Country	United states
Production	From 1995  Until 1997
Price	-
Tractor type	Agricultural Crawler tractor
Fuel	diesel
Service repair manual	Challenger 75D Manual

Dimensions, sizes and tires

AG front tires	30-inch track
AG rear tires	30-inch track
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	35720 lbs or 16202 kg
Length	232 inches [589 cm]
Width	120 inches [304 cm]
Height	128 inches [325 cm]
Wheelbase	107 inches [271 cm]
Ground clearance	-
Turning radius	-
Rear tread size	90 inches
Front tread size	90 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	629 ci or 10.3 L
Cylinders	6 cylinders
Engine power	330 hp or 246.1 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	203 gal or 768.4 L
Oil capacity	32 qts or 30.3 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Challenger 75D Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	900
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	145 amps

Clutch and gearbox specs

Trans system	-
Trans type	full power shift
Trans gears	10 forward and 2 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	hydrostatic differential steering
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed-center pressure-compensated
Valves	4
Pump flow	27 gpm or 102.2 lpm
SVC flow	-
Steering flow	-
Tank capacity	29 gal or 109.8 L
Hydraulic pressure	2750 psi or 189.6 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	240 hp or 179.0 kW
Drawbar horsepower	254.52 hp or 189.8 kW
Fuel consumption	15.8 gal/hour or 59.8 l/hour
Pulling power	34,760 lbs or 15767 kg

Power take-off (PTO) specs

Claimed power	285 hp or 212.5 kW
Real power	292.57 hp or 218.2 kW
Engine @RPM	1000@2050 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	16.0 gal/hour or 60.6 l/hour

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	IV/III
Rear hitch lift	12300 lbs or 5579 kg
Front hitch	-
Front hitch lift	-

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