Massey Ferguson 491 VS Allis Chalmers 7580 specs comparison

Massey Ferguson 491

General Infos

Make	Massey Ferguson
Model	491
Country	United states
Production	From 2004  Until 2006
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	Massey Ferguson 491 Manual

Dimensions, sizes and tires

AG front tires	12.4-24
AG rear tires	18.4-30
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	6,812 lbs or 3089 kg
Length	155 inches [393 cm]
Width	80 inches [203 cm]
Height	106 inches [269 cm]
Wheelbase	93 inches [236 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	268.6 ci or 4.4 L
Cylinders	4 cylinders
Engine power	89 hp or 66.4 kW
Engine RPM	2200 (rpm)
Torque	282 lb-ft or 382.4 Nm
Torque RPM	1200 (rpm)
Fuel type	diesel
Fuel injection	-
Fuel tank size	29 gal or 109.8 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Massey Ferguson 491 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	partially synchronized
Trans gears	12 forward and 4 reverse
Clutch system	305mm dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	planetary
Steering	hydrostatic power
Braking system	independent hydraulic wet disc
Cabin type	Flat-deck platform with two-post folding ROPS
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	2 or 3
Pump flow	10 gpm or 37.9 lpm
SVC flow	17 gpm or 64.3 lpm
Steering flow	8.0 gpm or 30.3 lpm
Tank capacity	-
Hydraulic pressure	-
Max flow	25 gpm or 94.6 lpm

Drawbar specifications

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

Power take-off (PTO) specs

Claimed power	77 hp or 57.4 kW
Real power	84.16 hp or 62.8 kW
Engine @RPM	540@1900 (rpm)
PTO Clutch	hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	4.9 gal/hour or 18.5 l/hour

3 point hitch specifiations

Hitch system	position control and top-link draft sensing
Rear hitch	2
Rear hitch lift	4,199 lbs or 1904 kg
Front hitch	-
Front hitch lift	-

Allis Chalmers 7580

General Infos

Make	Allis Chalmers
Model	7580
Country	United states
Production	From 1977  Until 1981
Price	63,084  USD
Tractor type	Four wheel Drive (4WD) tractor
Fuel	diesel
Service repair manual	Allis Chalmers 7580 Manual

Dimensions, sizes and tires

AG front tires	23.1x30
AG rear tires	23.1x30
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	23,100 lbs or 10478 kg
Length	225 inches [571 cm]
Width	95.5 inches [242 cm]
Height	-
Wheelbase	126 inches [320 cm]
Ground clearance	17 inches [43 cm]
Turning radius	-
Rear tread size	62 to 123 inches
Front tread size	62 to 123 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	426 ci or 7.0 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2550 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	170 gal or 643.5 L
Oil capacity	25 qts or 23.7 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Allis Chalmers 7580 Parts

Electrical and battery specs

Batteries number	4
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	alternator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Power Director
Trans type	partial power shift
Trans gears	20 forward and 4 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 articulated 4WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet discs
Cabin type	Acousta cab standard with heat and air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	3 to 4
Pump flow	23 gpm or 87.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	74.9 gpm or 283.5 lpm

Drawbar specifications

Drawbar type	-
Claimed power	153 hp or 114.1 kW
Drawbar horsepower	153.70 hp or 114.6 kW
Fuel consumption	12.6 gal/hour or 47.7 l/hour
Pulling power	23,310 lbs or 10573 kg

Power take-off (PTO) specs

Claimed power	186 hp or 138.7 kW
Real power	186.35 hp or 139.0 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	12.6 gal/hour or 47.7 l/hour

3 point hitch specifiations

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

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