Allis Chalmers HD21 VS John Deere 750 specs comparison

Allis Chalmers HD21

General Infos

Make	Allis Chalmers
Model	HD21
Country	United states
Production	From 1954  Until 1965
Price	-
Tractor type	Agricultural Crawler tractor
Fuel	diesel
Service repair manual	Allis Chalmers HD21 Manual

Dimensions, sizes and tires

AG front tires	tracks
AG rear tires	tracks
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	45500 lbs or 20638 kg
Length	198 inches [502 cm]
Width	-
Height	99 inches [251 cm]
Wheelbase	-
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	844 ci or 13.8 L
Cylinders	6 cylinders
Engine power	225 hp or 167.8 kW
Engine RPM	1800 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	135 gal or 511.0 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	24 V
Parts And Accessories	Allis Chalmers HD21 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	-
Trans type	torque converter
Trans gears	2 forward and 1 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	-
Braking system	contracting band
Cabin type	Open operator station
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	135.12 hp or 100.8 kW
Fuel consumption	-
Pulling power	40563 lbs or 18399 kg

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 750

General Infos

Make	John Deere
Model	750
Country	United states
Production	From 1981  Until 1989
Price	-
Tractor type	Compact Utility tractor
Fuel	diesel
Service repair manual	John Deere 750 Manual

Dimensions, sizes and tires

AG front tires	4.00-15
AG rear tires	9.5-24
Lawn front tires	25/8.5-14
Lawn rear tires	25/8.5-14
Indus front tires	-
Indus rear tires	-
Weight	1900 lbs or 861 kg
Length	112 inches [284 cm]
Width	45.1 inches [114 cm]
Height	78.9 inches [200 cm]
Wheelbase	61.1 inches [155 cm]
Ground clearance	-
Turning radius	-
Rear tread size	35/39 inches
Front tread size	35 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	78.2 ci or 1.3 L
Cylinders	3 cylinders
Engine power	20 hp or 14.9 kW
Engine RPM	2400 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	6.2 gal or 23.5 L
Oil capacity	4.0 qts or 3.8 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 750 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	-
Trans type	gear
Trans gears	8 forward and 2 reverse
Clutch system	200mm dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	manual
Braking system	differential mechanical dry, internal expanding shoe
Cabin type	Two-post ROPS
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	1
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2030 psi or 140.0 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	15.30 hp or 11.4 kW
Fuel consumption	1.2 gal/hour or 4.5 l/hour
Pulling power	1,661 lbs or 753 kg

Power take-off (PTO) specs

Claimed power	18 hp or 13.4 kW
Real power	19.80 hp or 14.8 kW
Engine @RPM	540@2300 (rpm)
PTO Clutch	electro-magnetic
Rear PTO	transmission
Rear PTO RPM	540 (rpm)
Front PTO	independent
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	1.3 gal/hour or 4.9 l/hour

3 point hitch specifiations

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

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