John Deere 7720 VS Allis Chalmers 8550 specs comparison

John Deere 7720

General Infos

Make	John Deere
Model	7720
Country	United states
Production	From 2004  Until 2007
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 7720 Manual

Dimensions, sizes and tires

AG front tires	11.00-16
AG rear tires	18.4R4
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	15,501 lbs or 7031 kg
Length	212.2 inches [538 cm]
Width	96 inches [243 cm] (short axle)
Height	125.4 inches [318 cm]
Wheelbase	112.6 inches [286 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	414 ci or 6.8 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	103.5 gal or 391.7 L
Oil capacity	27.5 qts or 26.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 7720 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	150 amps

Clutch and gearbox specs

Trans system	AutoPowr IVT
Trans type	infinitely variable transmission
Trans gears	infinite forward and reverse
Clutch system	hydraulic wet discs

Cabine and mechanical specs

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

Hydraulics specifications

System	closed-center pressure-flow compensated
Valves	7
Pump flow	32.2 gpm or 121.9 lpm
SVC flow	30 gpm or 113.6 lpm
Steering flow	-
Tank capacity	28.5 gal or 107.9 L
Hydraulic pressure	3046 psi or 210.0 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	129.08 hp or 96.3 kW
Fuel consumption	8.1 gal/hour or 30.7 l/hour
Pulling power	20604 lbs or 9345 kg

Power take-off (PTO) specs

Claimed power	140 hp or 104.4 kW
Real power	150.58 hp or 112.3 kW
Engine @RPM	540@1950 (rpm)
PTO Clutch	hydraulic wet discs
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	8.3 gal/hour or 31.4 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	3/3N
Rear hitch lift	10,050 lbs or 4558 kg
Front hitch	-
Front hitch lift	-

Allis Chalmers 8550

General Infos

Make	Allis Chalmers
Model	8550
Country	United states
Production	From 1978  Until 1981
Price	86,753  USD
Tractor type	Four wheel Drive (4WD) tractor
Fuel	diesel
Service repair manual	Allis Chalmers 8550 Manual

Dimensions, sizes and tires

AG front tires	20.8x34
AG rear tires	20.8x34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	26,400 lbs or 11975 kg
Length	285 inches [723 cm]
Width	95.5 inches [242 cm]
Height	139 inches [353 cm]
Wheelbase	126 inches [320 cm]
Ground clearance	17 inches [43 cm]
Turning radius	-
Rear tread size	62 to 123 inches
Front tread size	62 to 123 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	731 ci or 12.0 L
Cylinders	6 cylinders 24 valves
Engine power	300 hp or 223.7 kW
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	170 gal or 643.5 L
Oil capacity	46 qts or 43.5 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Allis Chalmers 8550 Parts

Electrical and battery specs

Batteries number	4
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Power Director
Trans type	partial power shift
Trans gears	20 forward and 4 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 articulated 4WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet discs
Cabin type	Acousta Cab II standard with heat and air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	3 or 4
Pump flow	74.9 gpm or 283.5 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	210 hp or 156.6 kW
Drawbar horsepower	217.92 hp or 162.5 kW
Fuel consumption	17.5 gal/hour or 66.2 l/hour
Pulling power	26,220 lbs or 11893 kg

Power take-off (PTO) specs

Claimed power	250 hp or 186.4 kW
Real power	253.88 hp or 189.3 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	17.4 gal/hour or 65.9 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	IV/III
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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