Allis Chalmers 8550
3-Point Hitch
| Rear type | IV/III |
|---|---|
| Control | - |
| Rear lift | - |
| Front hitch | - |
| Front lift | - |
Power Take-off (PTO):
| Rear PTO | independent |
|---|---|
| Clutch | - |
| Rear RPM | 1000 |
| Front PTO | - |
| Engine RPM | - |
Capacity
| Fuel | 170 gal [643.5 L] |
|---|
Dimensions & Tires
| Wheelbase | 126 inches [320 cm] |
|---|---|
| Weight | 26400 to 29360 pounds |
| Front tire | 18.4x38 |
| Rear tire | 18.4x38 |
Allis Chalmers 8550 Power:
| Engine gross | - |
|---|---|
| Engine max | - |
Mechanical
| Chassis | 4x4 articulated 4WD |
|---|---|
| Differential lock | - |
| Steering | hydrostatic power |
| Brakes | hydraulic wet discs |
| Trailer brakes | - |
| Cab | Acousta Cab II standard with heat and air-conditioning. Optional radio and 8 track tape deck. |
Hydraulics
| Type | IV/III |
|---|---|
| Rear valves | - |
| Mid valves | - |
| Pump flow | hydrostatic powe |
| SCV flow | - |
| Total flow | - |
Electrical
| Ground | negative |
|---|---|
| Charging system | alternator |
| Charging amps | - |
| Charging volts | - |
Battery
| Number | 4 |
|---|---|
| Cold-cranking amps | - |
| Volts | 12 |
Engine Detail
| Allis Chalmers 6120T turbocharged diesel 6-cylinder 24-valve liquid-cooled inline 731 ci [12.0 L] |
Engine specifications
| Bore/Stroke | 5.25x6.25 inches [133 x 159 mm] |
|---|---|
| Emissions | - |
| Emission control | - |
| Rated Power | - |
| Maximum Power | - |
| Air cleaner | dry |
| Pre-heating | - |
| Compression | - |
| Fuel system | - |
| Rated RPM | 2500 |
| Operating RPM | - |
| Torque | - |
| Torque RPM | - |
| Starter | - |
| Starter volts | 12 |
| Oil capacity | 46 qts [43.5 L] (2 filter) |
| Oil change | - |
| Coolant capacity | 72 qts [68.1 L] |
1978 - 1981
| Type | partial power shift |
|---|---|
| Gears | 20 forward and 4 reverse |
| Clutch | - |
| Speeds | Allis 8550 speeds with 18.4x38 tires. |
Power Director
| Type | - |
|---|---|
| Gears | - |
| Clutch | - |
| Speeds | - |
Allis Chalmers 8550 Tires
| Ag front | 1978 - 1981 |
|---|---|
| Ag rear | 18.4x38 |
| Standard tires (ag) | - |
Dimensions
| Weight (operating) | 27,040 lbs [12265 kg] |
|---|---|
| Weight (max capacity) | - |
| Front axle load | - |
| Rear axle load | - |
| Wheelbase | 126 inches [320 cm] |
| Length | 285 inches [723 cm] |
| With hitch Length: | - |
| Width | 95.5 inches [242 cm] 119.5 inches [303 cm] (long axle) |
| Height (hood) | 90.3 inches [229 cm] |
| Height (cab) | 139 inches [353 cm] |
| Front axle | - |
| Rear axle | - |
| Height (exhaust) | 154 inches [391 cm] |
| Clearance (front axle) | - |
| Clearance (rear axle) | - |
| Clearance (drawbar) | - |
Test name
| Test Date | 1978 - 1981 |
|---|---|
| Test Type | Diesel 20-speed 4WD |
| PTO power (max) | - |
| PTO fuel use (max) | - |
| PTO power (rated engine speed) | 253.88 hp [189.3 kW] |
| PTO fuel use (engine speed) | 17.4 gal/hour [65.9 l/hour] |
| PTO fuel use (PTO speed) | - |
| Drawbar power (max) | 217.92 hp [162.5 kW] |
| Drawbar fuel use (max) | 17.5 gal/hour [66.2 l/hour] |
| Drawbar pull (max) | 26,220 lbs [11893 kg] |
| Max pull gear | 2SL |
Test name
| Test Date | October 15 - 28, 1977 |
|---|---|
| Test Type | - |
| PTO power (max) | - |
| PTO fuel use (max) | - |
| PTO power (rated engine speed) | - |
| PTO fuel use (engine speed) | - |
| PTO fuel use (PTO speed) | - |
| Drawbar power (max) | - |
| Drawbar fuel use (max) | - |
| Drawbar pull (max) | - |
| Max pull gear | - |