John Deere 8770 VS John Deere 7420 specs comparison

John Deere 8770

General Infos

Make	John Deere
Model	8770
Country	United states
Production	From 1993  Until 1996
Price	114,945  USD
Tractor type	Four wheel Drive (4WD) tractor
Fuel	diesel
Service repair manual	John Deere 8770 Manual

Dimensions, sizes and tires

AG front tires	24.5R-32
AG rear tires	24.5R-32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	32,960 lbs or 14950 kg
Length	268.9 inches [683 cm]
Width	-
Height	-
Wheelbase	134 inches [340 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	619 ci or 10.1 L
Cylinders	6 cylinders
Engine power	300 hp or 223.7 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	220 gal or 832.7 L
Oil capacity	33.8 qts or 32.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 8770 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Power Shift
Trans type	full power shift
Trans gears	12 forward and 2 reverse
Clutch system	hydraulic wet disc

Cabine and mechanical specs

Wheel drive	4x4 articulated 4WD
Final drive	inboard planetary
Steering	hydrostatic power
Braking system	hydraulic wet discs
Cabin type	Sound-Gard cab standard
Differentiel lock	-

Hydraulics specifications

System	closed center pressure compensated
Valves	3 to 5
Pump flow	44.8 gpm or 169.6 lpm
SVC flow	33.3 gpm or 126.0 lpm
Steering flow	-
Tank capacity	38 gal or 143.8 L
Hydraulic pressure	2530 psi or 174.4 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	242.52 hp or 180.8 kW
Fuel consumption	15.8 gal/hour or 59.8 l/hour
Pulling power	33,464 lbs or 15179 kg

Power take-off (PTO) specs

Claimed power	256 hp or 190.9 kW
Real power	286.31 hp or 213.5 kW
Engine @RPM	-
PTO Clutch	hydraulic wet disc
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	draft sensing
Rear hitch	3
Rear hitch lift	14,980 lbs or 6794 kg
Front hitch	-
Front hitch lift	-

John Deere 7420

General Infos

Make	John Deere
Model	7420
Country	United states
Production	From 2003  Until 2007
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 7420 Manual

Dimensions, sizes and tires

AG front tires	14.9R28
AG rear tires	18.4R38
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	12,890 lbs or 5846 kg
Length	203.3 inches [516 cm]
Width	96 inches [243 cm]
Height	114.1 inches [289 cm]
Wheelbase	104.3 inches [264 cm]
Ground clearance	-
Turning radius	-
Rear tread size	60 to 88 inches
Front tread size	59.5 to 87.5 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	414 ci or 6.8 L
Cylinders	6 cylinders
Engine power	135 hp or 100.7 kW
Engine RPM	2100 (rpm)
Torque	450 lb-ft or 610.2 Nm
Torque RPM	1500 (rpm)
Fuel type	diesel
Fuel injection	-
Fuel tank size	54.7 gal or 207.0 L
Oil capacity	22.2 qts or 21.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 7420 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	-
Cold Amps	850
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	115 amps

Clutch and gearbox specs

Trans system	Infinitely Variable Transmission (IVT)
Trans type	partial power shift
Trans gears	infinite forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	inboard planetary
Steering	power
Braking system	hydraulic wet disc
Cabin type	ComfortGard Cab standard with air-conditioning
Differentiel lock	electro-hydraulic rear

Hydraulics specifications

System	closed-center PFC
Valves	4
Pump flow	26.7 gpm or 101.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	102.86 hp or 76.7 kW
Fuel consumption	6.7 gal/hour or 25.4 l/hour
Pulling power	-

Power take-off (PTO) specs

Claimed power	115 hp or 85.8 kW
Real power	116.56 hp or 86.9 kW
Engine @RPM	-
PTO Clutch	electro-hydraulic
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	independent
Front PTO RPM	1000 (rpm)
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	6.7 gal/hour or 25.4 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	II
Rear hitch lift	7450 lbs or 3379 kg
Front hitch	-
Front hitch lift	-

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