Challenger MT645 VS David Brown 1690 specs comparison

Challenger MT645

General Infos

Make	Challenger
Model	MT645
Country	United states
Production	From 2002  Until 2003
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Challenger MT645 Manual

Dimensions, sizes and tires

AG front tires	14.9R30
AG rear tires	18.4R42
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	19000 lbs or 8618 kg
Length	203 inches [515 cm]
Width	98.2 inches [249 cm]
Height	121 inches [307 cm]
Wheelbase	121 inches [307 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	449 ci or 7.4 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	120 gal or 454.2 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Challenger MT645 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	-
Trans type	power shift
Trans gears	18 forward and 6 reverse
Clutch system	electro-hydraulic wet disc

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	power
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center pressure flow compensated
Valves	4
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	29 gpm or 109.8 lpm

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	180 hp or 134.2 kW
Real power	183.87 hp or 137.1 kW
Engine @RPM	1000@2091 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	10.9 gal/hour or 41.3 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III
Rear hitch lift	18400 lbs or 8346 kg
Front hitch	-
Front hitch lift	-

David Brown 1690

General Infos

Make	David Brown
Model	1690
Country	United states
Production	From 1980  Until 1984
Price	30,000  USD
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	David Brown 1690 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	18.4-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	8755 lbs or 3971 kg
Length	-
Width	-
Height	-
Wheelbase	100.5 inches [255 cm]
Ground clearance	-
Turning radius	-
Rear tread size	60.75 to 85 inches
Front tread size	59 to 71 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	329 ci or 5.4 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	26 gal or 98.4 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	David Brown 1690 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	-
Trans type	partial power shift
Trans gears	12 forward and 4 reverse
Clutch system	hydraulic dry disc

Cabine and mechanical specs

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

Hydraulics specifications

System	open center
Valves	-
Pump flow	20 gpm or 75.7 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	72.55 hp or 54.1 kW
Fuel consumption	5.5 gal/hour or 20.8 l/hour
Pulling power	10536 lbs or 4779 kg

Power take-off (PTO) specs

Claimed power	90 hp or 67.1 kW
Real power	87.76 hp or 65.4 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	5.5 gal/hour or 20.8 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	II
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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