| Manufacturer | Allis Chalmers |
| Price | 54,561(USD) |
| Model | 7080 |
| Equipment Type | Row-Crop Tractors |
| Factory | West Allis, Wisconsin, USA |
NEBRASKA TRACTOR TEST 1168 2
| Description | Diesel Power Director 2WD November 1 - 13, 1974 Link: Nebraska Tractor Test 1168 file PTO performance Drawbar performance Gear 4-Slow-Lo used for power test. Gear 2-Slow-Lo used for pull test |
| Power at rated engine speed | 181.51hp / 135.4kW |
| Fuel use | 11.3gal/hour / 42.8l/hour |
| Max power | 148.89hp / 111.0kW |
| Max pull | 18,478lbs / 8381kg |
ALLIS CHALMERS 7080 POWER
| Engine | 210hp / 156.6kW |
| Drawbar (claimed) | 154hp / 114.8kW |
| PTO (claimed) | 181.5hp / 135.3kW |
| Drawbar (tested) | 148.89hp / 111.0kW |
| PTO (tested) | 181.51hp / 135.4kW |
ENGINE DETAIL
The Allis Chalmers 7080 features a robust 670HI intercooled turbocharged diesel engine with a displacement of 7.0L, delivering 210hp at a rated RPM of 2550, beneficial for demanding agricultural tasks requiring high torque and power. It has a higher compression ratio of 16:1, which enhances fuel efficiency but may pose a challenge with fuel quality, necessitating the use of higher-grade diesel. Additionally, the substantial oil and coolant capacities support extended operation time, but regular maintenance is crucial to prevent overheating and ensure optimal performance.
| Description | Allis Chalmers 670HI intercooled turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 426ci / 7.0L |
| Bore/Stroke | 4.25x5.00inches / 108x 127 mm |
| Power | 210hp / 156.6kW |
| Air cleaner | dry with pre-cleaner |
| Compression | 16:1 |
| Rated RPM | 2550 |
| Starter volts | 12 |
| Oil capacity | 25qts / 23.7L |
| Coolant capacity | 36qts / 34.1L |
ALLIS CHALMERS 7080 ENGINE
The Allis Chalmers 7080 is powered by a robust 7.0L 6-cylinder diesel engine, enhancing torque delivery for heavy-duty tasks. Its 64-gallon fuel tank provides extended operational range, making it ideal for long farming sessions without the need for frequent refueling. However, its weight and size may limit maneuverability in small spaces or hilly terrain; careful consideration of these factors is essential for optimal performance.
| Description | Allis Chalmers 7.0L 6-cyl diesel |
| Fuel tank | 64gal / 242.2L |
TRANSMISSION
The Allis Chalmers 7080 features a partial power shift transmission with 20 forward and 4 reverse gears, providing versatility for varying field conditions. The two-range power shift (lo/hi) allows efficient operation in both fast and slow scenarios, which can optimize productivity, particularly in tillage and transport tasks. However, the reliance on foot buttons for gear shifting may pose ergonomic challenges for some operators during extended use.
| Transmission | Allis-Chalmers Power Director |
| Type | partial power shift |
| Gears | 20 forward and 4 reverse |
| Oil capacity | 29.6qts / 28.0L |
| Description | Five gears, plus reverse, with two ranges (fast/slow) and two-range power shift (lo/hi). Power shift controlled by foot buttons. |
SPEEDS
| Description | With 20.8x38 rear tires |
MECHANICAL
The Allis Chalmers 7080 features a 4x2 2WD chassis, which may limit traction in adverse conditions compared to 4WD models, but it offers simplicity and lower maintenance costs. The inboard planetary final drives provide compactness and enhanced maneuverability, critical for tight field conditions. Its 20-speed partial power shift transmission allows for smooth transitions and improved efficiency during varying load demands, making it suitable for diverse agricultural tasks.
| Chassis | 4x2 2WD |
| Final drives | inboard planetary |
| Steering | power |
| Brakes | differential hydraulic wet disc |
| Cab | Acousta cab standard with heat, air-conditioning optional. Radio and 8-track player optional. Four-post ROPS canopy available. |
| Transmission | 20-speed partial power shift |
HYDRAULICS
| Type | closed center |
| Valves | 2 or 3 |
| Pump flow | 23gpm / 87.1lpm |
| Total flow | 47gpm / 177.9lpm |
| Steering flow | 10gpm / 37.9lpm |
TRACTOR HITCH
| Rear Type | 3/2 |
| Rear lift (at 24 | 6,680lbs / 3030kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 1000 |
ALLIS CHALMERS 7080 TIRES
The Allis Chalmers 7080 features an Ag front tire size of 11.00x16, providing decent maneuverability in field applications, while its rear tire options (ranging from 23.1x30 to 18.4x42) offer versatility for various soil conditions and implement loads. The larger rear tires (e.g., 30.5x32) enhance traction and stability, making it suitable for heavy tillage or hauling tasks. However, the wide range of rear tire sizes may require careful selection based on the specific agricultural operation to optimize performance and prevent soil compaction.
| Ag front | 11.00x16 |
| Ag rear | 23.1x30/24.5x32/30.5x32/15.5x38/16.9x38/20.8x38/18.4x42 |
DIMENSIONS
| Wheelbase | 106inches / 269cm |
| Length | 163inches / 414cm |
| Width | 95.5inches / 242cm/119.5inches / 303cm (optional long axle) |
| Weight | 13638lbs / 6186kg |
| Ground clearance | 22inches / 55cm (front axle)/29inches / 73cm (rear axle) |
| Rear axle | 4.00 inch diameter /101 mm |
ALLIS CHALMERS 7080 HEIGHT
| Steering wheel | 88inches / 223cm |
| Hood | 69inches / 175cm |
| Exhaust | 117inches / 297cm |
DIMENSIONS & TIRES
The Allis Chalmers 7080 tractor features a 106-inch wheelbase, providing stability during heavy-duty tasks while maintaining maneuverability. At a weight of 13,638 lbs, it offers enhanced traction and reduces soil compaction, making it suitable for agricultural applications. However, the relatively narrow front tire size (14Lx16) may limit its load distribution capabilities compared to wider alternatives, potentially impacting performance in muddy conditions.
| Wheelbase | 106inches / 269cm |
| Weight | 13638lbs / 6186kg |
| Front tire | 14Lx16 |
| Rear tire | 20.8x38 |
7080 SERIAL NUMBERS
| Location | Above PTO shield |
| 1975 | 1007 |
| 1976 | 1572 |
| 1977 | 2051 |
| 1978 | 3001 |
| 1979 | 3268 |
| 1980 | 3648 |
| 1981 | 3954 |