Allis Chalmers HD21 VS John Deere 1250 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 1250

General Infos

Make	John Deere
Model	1250
Country	United states
Production	From 1982  Until 1989
Price	-
Tractor type	Compact Utility tractor
Fuel	diesel
Service repair manual	John Deere 1250 Manual

Dimensions, sizes and tires

AG front tires	9.5-24
AG rear tires	14.9-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	4125 lbs or 1871 kg
Length	134.3 inches [341 cm]
Width	65.2 inches [165 cm]
Height	-
Wheelbase	78 inches [198 cm]
Ground clearance	-
Turning radius	-
Rear tread size	51 to 79 inches
Front tread size	55 to 74.8 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	142.7 ci or 2.3 L
Cylinders	3 cylinders
Engine power	44 hp or 32.8 kW
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	17.2 gal or 65.1 L
Oil capacity	11.2 qts or 10.6 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 1250 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	25 amps

Clutch and gearbox specs

Trans system	-
Trans type	sliding gear
Trans gears	9 forward and 3 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	inboard planetary
Steering	power assist
Braking system	differential hydraulic wet disc
Cabin type	Two-post ROPS
Differentiel lock	mechanical

Hydraulics specifications

System	open center
Valves	0 to 2
Pump flow	11.2 gpm or 42.4 lpm
SVC flow	-
Steering flow	4.7 gpm or 17.8 lpm
Tank capacity	-
Hydraulic pressure	-
Max flow	15.9 gpm or 60.2 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	33.44 hp or 24.9 kW
Fuel consumption	2.4 gal/hour or 9.1 l/hour
Pulling power	5,164 lbs or 2342 kg

Power take-off (PTO) specs

Claimed power	40 hp or 29.8 kW
Real power	40.98 hp or 30.6 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	continuous
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	2.4 gal/hour or 9.1 l/hour

3 point hitch specifiations

Hitch system	center-link draft sensing with position and control
Rear hitch	II/I
Rear hitch lift	2240 lbs or 1016 kg
Front hitch	-
Front hitch lift	-

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