The Allis Chalmers 8550 is a four-wheel drive tractor manufactured by Allis Chalmers in from 1978 to 1981. The Allis Chalmers 8550 is equipped with a 12.0 L (731.[ cu·in) six-cylinder diesel engine and a partial power shift transmission with 20 forward and 4 reverse gears.
The Allis Chalmers 8550 tractor used the Allis Chalmers 6120T engine. It is a 12.0 L, 11,980 cm2, (731.0 cu·in) six-cylinder turbocharged diesel engine with 133.0 mm (5.24 in) of the cylinder bore and 159.0 mm (6.26 in) of the piston stroke. The compression ratio rating is 16.25:1. This engine produced 304.2 PS (223.7 kW; 300.0 HP) at 2,500 rpm of output power.
The Allis Chalmers 8550 is equipped with hydrostatic power steering, hydraulic wet discs brakes, Acousta Cab II with heat and air-conditioning, and 643.5 liters (170 US gal.; 141.6 Imp. gal) fuel tank.
Allis Chalmers 8550 Specifications
General Specifications | |
Model | Allis Chalmers 8550 |
Length | 7,230 mm (284.6 in) |
Width | 2,420 mm (95.3 in) With long axle: 3,030 mm (119.5 in) |
Height | 3,530 mm (139 in) |
Wheel base | 3,200 mm (126 in) |
Ground clearance | 430 mm (16.9 in) |
Weight | 12,265 kg (27,040 lbs) |
Fuel tank capacity | 643.5 liters (170 US gal.; 141.6 Imp. gal) |
Battery | Four 12V |
Cabin type | Acousta Cab II with heat and air-conditioning. |
Engine | |
Engine model | Allis Chalmers 6120T |
Engine type | Four-stroke, liquid-cooled, inline |
Cylinders | 6 |
Fuel type | Diesel |
Displacement | 12.0 L, 11,980 cm2, (731.0 cu·in) |
Bore and stroke | 133.0 mm X 159.0 mm (5.24 in X 6.26 in) |
Compression ratio | 16.25:1 |
Horsepower | 304.2 PS (223.7 kW; 300 HP) at 2,500 rpm |
Starter | Electric |
Oil capacity: |
With 2 filters: 43.5 L (46.0 US. qt, 38.3 Imp. qt.) With 3 filters: 56.8 L (60.0 US. qt, 50.0 Imp. qt.) |
Coolant capacity: | 68.1 L (72 US. qt, 59.9 Imp. qt.) |
Transmission and chassis | |
Chassis | 4×4 MFWD 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: 30.1 kmh (18.7 mph) Reverse: 18.7 (11.6 mph) |
Tires | |
Front tires | Ag: 18.4×38, |
Rear tires | Ag: 18.4×38 |
Three-Point Hitch | |
Caterogy | IV/III |
Control type | – |
Lift capacity (at ends) | – |
PTO (Power take-off shaft) | |
Rear PTO type | Independent |
Rear PTO speed | 1,000 rpm |
Hydraulic system | |
Hydraulic type | Closed center |
Valves | 3 or 4 |
Pump flow | 74.9 gpm (283.5 lpm) |