The 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 |
Model |
Allis Chalmers 7580 |
Length |
5,710 mm (224.8 in) |
Width |
2,420 mm (95.3 in) |
Height |
3,810 mm (150 in) |
Wheel base |
3,200 mm (126 in) |
Ground clearance |
430 mm (16.9 in) |
Weight |
10,665 kg (23,512 lbs) |
Fuel tank capacity |
643.5 liters (170 US gal.; 141.6 Imp. gal) |
Battery |
Four 12V |
Cabin type |
Acousta cab |
Engine |
Engine model |
Allis Chalmers 3750 Mark II |
Engine type |
Four-stroke, liquid-cooled, inline |
Cylinders |
6 |
Fuel type |
Diesel |
Displacement |
7.0 L, 6,981 cm2, (426.0 cu·in) |
Bore and stroke |
108.0 mm X 127.0 mm (4.25 in X 5 in) |
Compression ratio |
16.0:1 |
Horsepower |
208.9 PS (153.6 kW; 206.0 HP) at 2,550 rpm |
Starter |
Electric |
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 |
Chassis |
4×4 articulated 4WD |
Steering type |
Hydrostatic power |
Brakes |
Hydraulic wet discs |
Transmission model |
Power Director |
Transmission type |
Partial power shift |
Gears |
20 forward and 4 reverse |
Speed |
Forward: 30.4 kmh (18.9 mph) Reverse: 13.7 (8.5 mph) |
Tires |
Front tires |
Ag: 20.8-38 |
Rear tires |
Ag: 20.8-38 |
Three-Point Hitch |
Caterogy |
III |
Control type |
– |
Lift capacity (at ends) |
– |
PTO (Power take-off shaft) |
Rear PTO type |
Independent |
Rear PTO speed |
540 rpm |
Hydraulic system |
Hydraulic type |
Closed center |
Valves |
3 to 4 |
Pump flow |
23.0 gpm (87.1 lpm) |
Total flow |
74.9 gpm (283.5 lpm) |