John Deere 4640 VS Simplicity 9523 specs comparison

John Deere 4640 1978 comparison online with competitors

John Deere 4640

General Infos
Make John Deere
Model 4640
Country United states
Production From 1978  Until 1982
Price -
Tractor type Row Crop tractor
Fuel diesel
Service repair manual John Deere 4640 Manual

Dimensions, sizes and tires
AG front tires 10.00-16
AG rear tires 24.5-32
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 14350 lbs or 6509 kg
Length 171 inches [434 cm]
Width 96 inches [243 cm]
Height 117 inches [297 cm]
Wheelbase 118.5 inches [300 cm]
Ground clearance 14.9 inches [37 cm]
Turning radius 14.7 feet [4.5 m]
Rear tread size 60 to 131.5 inches
Front tread size 58 to 100 inches
Turning radius -

Horsepower and engin specs
Engine capacity 466 ci or 7.6 L
Cylinders 6 cylinders
Engine power -
Engine RPM 2200 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size 83 gal or 314.2 L
Oil capacity 20 qts or 18.9 L
Oil change -
Starter motor -
Starter volts 12 V
Parts And Accessories John Deere 4640 Parts
Electrical and battery specs
Batteries number 2
Batteries voltage 6 V
Battries Amps -
Cold Amps -
Ground force negative
Charging system alternator
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system John Deere PowerShift
Trans type full power shift
Trans gears 8 forward and 4 reverse
Clutch system -
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive -
Steering hydrostatic power
Braking system differential hydraulic wet disc
Cabin type Sound-Gard cab standard
Differentiel lock pedal-actuated hydraulic
Hydraulics specifications
System closed center
Valves 2 or 3
Pump flow 23 gpm or 87.1 lpm
SVC flow -
Steering flow -
Tank capacity 16.5 gal or 62.5 L
Hydraulic pressure -
Max flow -
Drawbar specifications
Drawbar type -
Claimed power -
Drawbar horsepower 132.44 hp or 98.8 kW
Fuel consumption 9.8 gal/hour or 37.1 l/hour
Pulling power 15,989 lbs or 7252 kg
Power take-off (PTO) specs
Claimed power 155 hp or 115.6 kW
Real power 157.01 hp or 117.1 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 9.9 gal/hour or 37.5 l/hour
3 point hitch specifiations
Hitch system -
Rear hitch III/IIIN
Rear hitch lift 7328 lbs or 3323 kg
Front hitch -
Front hitch lift -

Simplicity 9523 1978 comparison online with competitors

Simplicity 9523

General Infos
Make Simplicity
Model 9523
Country United states
Production From 1978  Until 1983
Price -
Tractor type Sub Compact Utility tractor
Fuel diesel
Service repair manual Simplicity 9523 Manual

Dimensions, sizes and tires
AG front tires 4.00x12
AG rear tires 9.5x24
Lawn front tires 20x8.00-10
Lawn rear tires 20x8.00-10
Indus front tires -
Indus rear tires -
Weight 1,825 lbs or 827 kg
Length 98.9 inches [251 cm]
Width 48 inches [121 cm]
Height -
Wheelbase 59.8 inches [151 cm]
Ground clearance -
Turning radius -
Rear tread size 37/41.7 inches
Front tread size 37.4/44.1 inches
Turning radius -

Horsepower and engin specs
Engine capacity 77.1 ci or 1.3 L
Cylinders 2 cylinders
Engine power 23 hp or 17.2 kW
Engine RPM 2500 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection Kiki NP-PE injection
Fuel tank size 7 gal or 26.5 L
Oil capacity 5 qts or 4.7 L
Oil change 50 h
Starter motor electric
Starter volts 12 V
Parts And Accessories Simplicity 9523 Parts
Electrical and battery specs
Batteries number 1
Batteries voltage 12 V
Battries Amps 70 amps
Cold Amps -
Ground force negative
Charging system Hitachi LR115-58 alternator
Charging Volts 12 V
Charging Amps 15 amps
Clutch and gearbox specs
Trans system -
Trans type unsynchronized gear
Trans gears 8 forward and 2 reverse
Clutch system 215mm dry disc
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive -
Steering -
Braking system drum
Cabin type Open operator station
Differentiel lock rear standard
Hydraulics specifications
System gear pump
Valves -
Pump flow -
SVC flow -
Steering flow -
Tank capacity 5.5 gal or 20.8 L
Hydraulic pressure -
Max flow 5.44 gpm or 20.6 lpm
Drawbar specifications
Drawbar type -
Claimed power -
Drawbar horsepower -
Fuel consumption -
Pulling power -
Power take-off (PTO) specs
Claimed power 21 hp or 15.7 kW
Real power -
Engine @RPM 540@2300 (rpm)
PTO Clutch -
Rear PTO continuous
Rear PTO RPM 540 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption -
3 point hitch specifiations
Hitch system position control
Rear hitch I
Rear hitch lift -
Front hitch -
Front hitch lift -

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