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) |
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.