Allis Chalmers D21 Series I VS Zetor 7520 specs comparison

Allis Chalmers D21 Series I

General Infos

Make	Allis Chalmers
Model	D21 Series I
Country	United states
Production	From 1963  Until 1969
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Allis Chalmers D21 Series I Manual

Dimensions, sizes and tires

AG front tires	11.00x16
AG rear tires	24.5x32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	9500 lbs or 4309 kg
Length	160.6 inches [407 cm]
Width	91.6 inches [232 cm]
Height	-
Wheelbase	96.1 inches [244 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	426 ci or 7.0 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	52 gal or 196.8 L
Oil capacity	12 qts or 11.4 L
Oil change	-
Starter motor	-
Starter volts	-
Parts And Accessories	Allis Chalmers D21 Series I Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	95 amps
Cold Amps	-
Ground force	negative
Charging system	Delco-Remy generator
Charging Volts	-
Charging Amps	32 amps

Clutch and gearbox specs

Trans system	Power Director
Trans type	sliding gear
Trans gears	8 forward and 2 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	power
Braking system	band actuated disc
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	93 hp or 69.4 kW
Drawbar horsepower	93.09 hp or 69.4 kW
Fuel consumption	7.1 gal/hour or 26.9 l/hour
Pulling power	14,840 lbs or 6731 kg

Power take-off (PTO) specs

Claimed power	103 hp or 76.8 kW
Real power	103.06 hp or 76.9 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	7.1 gal/hour or 26.9 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III/II
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Zetor 7520

General Infos

Make	Zetor
Model	7520
Country	Czech republic
Production	From 1995  Until 1999
Price	-
Tractor type	-
Fuel	diesel
Service repair manual	Zetor 7520 Manual

Dimensions, sizes and tires

AG front tires	7.50-20
AG rear tires	16.9-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	7341 lbs or 3329 kg
Length	153.5 inches [389 cm]
Width	75.9 inches [192 cm]
Height	104 inches [264 cm]
Wheelbase	93.5 inches [237 cm]
Ground clearance	14.6 inches [37 cm]
Turning radius	-
Rear tread size	59.1 to 70.9 inches
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	253.6 ci or 4.2 L
Cylinders	4 cylinders
Engine power	71 hp or 52.9 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	-
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Zetor 7520 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	alternator
Charging Volts	12 V
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	-
Trans type	synchromesh
Trans gears	18 forward and 6 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard with heater
Differentiel lock	-

Hydraulics specifications

System	open
Valves	3
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2682 psi or 184.9 bar
Max flow	15.85 gpm or 60.0 lpm

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	63 hp or 47.0 kW
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	II
Rear hitch lift	7,165 lbs or 3250 kg
Front hitch	optional
Front hitch lift	-

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