J.I. Case 644 VS John Deere 850 specs comparison

J.I. Case 644

General Infos

Make	J.I. Case
Model	644
Country	Unites states
Production	From 1972  Until 1979
Price	-
Tractor type	Industrial tractor
Fuel	gasoline
Service repair manual	J.I. Case 644 Manual

Dimensions, sizes and tires

AG front tires	-
AG rear tires	-
Lawn front tires	-
Lawn rear tires	-
Indus front tires	5.70-8
Indus rear tires	27x8.50-15
Weight	1130 lbs or 512 kg
Length	108 inches [274 cm]
Width	41 inches [104 cm]
Height	-
Wheelbase	48 inches [121 cm]
Ground clearance	8.25 inches [20 cm]
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	31.27 ci or 0.5 L
Cylinders	1 cylinders
Engine power	14 hp or 10.4 kW
Engine RPM	3600 (rpm)
Torque	-
Torque RPM	-
Fuel type	gasoline
Fuel injection	-
Fuel tank size	5 gal or 18.9 L
Oil capacity	1.5 qts or 1.4 L
Oil change	25 h
Starter motor	electric
Starter volts	12 V
Parts And Accessories	J.I. Case 644 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	32 amps
Cold Amps	-
Ground force	negative
Charging system	starter-generator
Charging Volts	12 V
Charging Amps	-

Clutch and gearbox specs

Trans system	Hy-Drive
Trans type	hydraulic drive
Trans gears	infinite (2-range) forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	manual
Braking system	mechanical band
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	-
Pump flow	9 gpm or 34.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	3 gal or 11.4 L
Hydraulic pressure	2300 psi or 158.6 bar
Max flow	-

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	-
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

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

John Deere 850

General Infos

Make	John Deere
Model	850
Country	United states
Production	From 1978  Until 1984
Price	-
Tractor type	-
Fuel	-
Service repair manual	John Deere 850 Manual

Dimensions, sizes and tires

AG front tires	-
AG rear tires	-
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	-
Length	-
Width	-
Height	126 inches 320 cm
Wheelbase	-
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	-
Cylinders	6 cylinders
Engine power	145 hp 108.1 kW
Engine RPM	-
Torque	550 lb-ft 745.8 Nm
Torque RPM	1200 (rpm)
Fuel type	-
Fuel injection	-
Fuel tank size	82 gal 310.4 L
Oil capacity	34 qts 32.2 L
Oil change	-
Starter motor	electric
Starter volts	24 V
Parts And Accessories	John Deere 850 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	570
Ground force	-
Charging system	alternator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	hydrostatic
Trans gears	infinite forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	-
Braking system	-
Cabin type	Four-post ROPS
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	-
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

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

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