Allis Chalmers 7580

Allis Chalmers 7580The Allis Chalmers 7580 is a 4WD four-wheel drive tractor manufactured by Allis Chalmers in West Allis, Wisconsin, USA from 1977 to 1981. The Allis Chalmers 7580 is equipped with a 7.0 L (426.0 cu·in) six-cylinder diesel engine and a partial power shift transmission with 20 forward and 4 reverse gears.

The Allis Chalmers 7580 four-wheel drive tractor used the Allis Chalmers 3750 Mark II engine. It is a 7.0 L, 6,981 cm2, (426.0 cu·in) six-cylinder turbocharged intercooled diesel engine with 108.0 mm (4.25 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 16.0:1. This engine produced 208.9 PS (153.6 kW; 206.0 HP) at 2,550 rpm of output power.
The Allis Chalmers 7580 is equipped with hydrostatic power steering, hydraulic wet discs brakes, the Acousta cab, and 643.5 liters (170 US gal.; 141.6 Imp. gal) fuel tank.

Allis Chalmers 7580 Specifications

General Specifications
ModelAllis Chalmers 7580
Length5,710 mm (224.8 in)
Width2,420 mm (95.3 in)
Height3,810 mm (150 in)
Wheel base3,200 mm (126 in)
Ground clearance430 mm (16.9 in)
Weight10,665 kg (23,512 lbs)
Fuel tank capacity643.5 liters (170 US gal.; 141.6 Imp. gal)
BatteryFour 12V
Cabin typeAcousta cab
Engine modelAllis Chalmers 3750 Mark II
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement7.0 L, 6,981 cm2, (426.0 cu·in)
Bore and stroke108.0 mm X 127.0 mm (4.25 in X 5 in)
Compression ratio16.0:1
Horsepower208.9 PS (153.6 kW; 206.0 HP) at 2,550 rpm
Oil capacity:23.7 L (25 US. qt, 20.9 Imp. qt.)
Coolant capacity:36.0 L (38 US. qt, 31.7 Imp. qt.)
Transmission and chassis
Chassis4×4 articulated 4WD
Steering typeHydrostatic power
BrakesHydraulic wet discs
Transmission modelPower Director
Transmission typePartial power shift
Gears20 forward and 4 reverse
Speed Forward: 30.4 kmh (18.9 mph) Reverse: 13.7 (8.5 mph)
Front tiresAg: 20.8-38
Rear tiresAg: 20.8-38
Three-Point Hitch
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO speed540 rpm
Hydraulic system
Hydraulic typeClosed center
Valves3 to 4
Pump flow23.0 gpm (87.1 lpm)
Total flow74.9 gpm (283.5 lpm)
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