Allis Chalmers HD21 VS John Deere 7250R 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 7250R

General Infos

Make	John Deere
Model	7250R
Country	United states
Production	From 2014
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 7250R Manual

Dimensions, sizes and tires

AG front tires	320/85R38
AG rear tires	320/90R54
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	23845 lbs or 10816 kg
Length	217 inches [551 cm]
Width	-
Height	132 inches [335 cm]
Wheelbase	115.2 inches [292 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	60 to 88 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	549 ci or 9.0 L
Cylinders	6 cylinders 24 valves
Engine power	290 hp or 216.3 kW
Engine RPM	2100 (rpm)
Torque	863.7 lb-ft or 1171.2 Nm
Torque RPM	1600 (rpm)
Fuel type	diesel
Fuel injection	electronic high-pressure common rail
Fuel tank size	143.7 gal or 543.9 L
Oil capacity	28.5 qts or 27.0 L
Oil change	500 h
Starter motor	electric
Starter volts	12 V
Parts And Accessories	John Deere 7250R 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	200 amps

Clutch and gearbox specs

Trans system	John Deere AutoPowr IVT
Trans type	infinitely variable transmission
Trans gears	infinite forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	inboard planetary
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning
Differentiel lock	electro-hydraulic rear

Hydraulics specifications

System	closed center pressure-flow compensated
Valves	3 to 6
Pump flow	42.8 gpm or 162.0 lpm
SVC flow	33.3 gpm or 126.0 lpm
Steering flow	-
Tank capacity	42.3 gal or 160.1 L
Hydraulic pressure	2958 psi or 204.0 bar
Max flow	-

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	205 hp or 152.9 kW
Real power	-
Engine @RPM	1000@1940 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	independent
Front PTO RPM	1000 (rpm)
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	electro-hydraulic draft sensing
Rear hitch	III/IIIN
Rear hitch lift	15200 lbs or 6894 kg
Front hitch	IIIN
Front hitch lift	11464 lbs or 5200 kg

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