David Brown 770 Selectamatic VS Challenger 65C specs comparison

David Brown 770 Selectamatic

General Infos

Make	David Brown
Model	770 Selectamatic
Country	United states
Production	From 1965  Until 1970
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	David Brown 770 Selectamatic Manual

Dimensions, sizes and tires

AG front tires	5.50-16
AG rear tires	11.2/10-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	3110 lbs or 1410 kg
Length	112.5 inches [285 cm]
Width	64 inches [162 cm]
Height	-
Wheelbase	75 inches [190 cm]
Ground clearance	-
Turning radius	-
Rear tread size	48/52/56/60/64/68/72/76 inches
Front tread size	48/52/56/60/64/68/72/76 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	146.1 ci or 2.4 L
Cylinders	3 cylinders
Engine power	36 hp or 26.8 kW
Engine RPM	2055 (rpm)
Torque	100 lb-ft or 135.6 Nm
Torque RPM	1400 (rpm)
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	11.4 gal or 43.1 L
Oil capacity	7.8 qts or 7.4 L
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	David Brown 770 Selectamatic Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	96 amps
Cold Amps	-
Ground force	negative
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 drum
Cabin type	Open operator station
Differentiel lock	mechanical rear

Hydraulics specifications

System	open center
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2000 psi or 137.9 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	27.5 hp or 20.5 kW
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	32 hp or 23.9 kW
Real power	-
Engine @RPM	540@1620 (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	position and draft control
Rear hitch	I
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Challenger 65C

General Infos

Make	Challenger
Model	65C
Country	United states
Production	From 1993  Until 1994
Price	-
Tractor type	Agricultural Crawler tractor
Fuel	diesel
Service repair manual	Challenger 65C Manual

Dimensions, sizes and tires

AG front tires	25-in track
AG rear tires	25-in track
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	32875 lbs or 14912 kg
Length	232 inches [589 cm]
Width	120 inches [304 cm]
Height	128 inches [325 cm]
Wheelbase	107.1 inches [272 cm]
Ground clearance	-
Turning radius	-
Rear tread size	90 inches
Front tread size	90 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	638 ci or 10.5 L
Cylinders	6 cylinders
Engine power	285 hp or 212.5 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	209 gal or 791.1 L
Oil capacity	27.5 qts or 26.0 L
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	Challenger 65C Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	750
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	115 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	power
Braking system	hydraulic wet disc
Cabin type	Cab standard
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	4
Pump flow	27 gpm or 102.2 lpm
SVC flow	-
Steering flow	61.4 gpm or 232.4 lpm
Tank capacity	29 gal or 109.8 L
Hydraulic pressure	2550 psi or 175.8 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	225 hp or 167.8 kW
Drawbar horsepower	220.32 hp or 164.3 kW
Fuel consumption	15.7 gal/hour or 59.4 l/hour
Pulling power	32714 lbs or 14839 kg

Power take-off (PTO) specs

Claimed power	250 hp or 186.4 kW
Real power	250.16 hp or 186.5 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	15.3 gal/hour or 57.9 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III/IV
Rear hitch lift	11,370 lbs or 5157 kg
Front hitch	-
Front hitch lift	-

Add a tractor