| Manufacturer | Allis Chalmers |
| Price | 43,328(USD) |
| Model | 7045 |
| Equipment Type | Row-Crop Tractors |
| Factory | West Allis, Wisconsin, USA |
NEBRASKA TRACTOR TEST 1261 2
| Description | Diesel Power Director 2WD October 12 - 25, 1977 Link: Nebraska Tractor Test 1261 file PTO performance Drawbar performance Gear 4SL used for power test Gear 1SH used for pull test |
| Power at rated engine speed | 146.18hp / 109.0kW |
| Fuel use | 10.1gal/hour / 38.2l/hour |
| Power at rated PTO speed | 146.46hp / 109.2kW |
| Max power | 122.90hp / 91.6kW |
| Max pull | 15,430lbs / 6999kg |
NEBRASKA TRACTOR TEST 1308 2
| Description | Diesel Power shift 2WD May 3 - 8, 1979 Link: Nebraska Tractor Test 1308 file PTO performance Drawbar performance Gear 1F used for power test Gear 2S used for pull test |
| Power at rated engine speed | 146.88hp / 109.5kW |
| Fuel use | 9.8gal/hour / 37.1l/hour |
| Power at rated PTO speed | 146.67hp / 109.4kW |
| Max power | 123.35hp / 92.0kW |
| Max pull | 15,449lbs / 7007kg |
ALLIS CHALMERS 7045 POWER
| Engine | 173hp / 129.0kW |
| Drawbar (claimed) | 124hp / 92.5kW |
| PTO (claimed) | 145hp / 108.1kW |
| Drawbar (tested) | 123.35hp / 92.0kW |
| PTO (tested) | 146.88hp / 109.5kW |
ENGINE DETAIL
The Allis Chalmers 7045 features a robust 7.0L turbocharged diesel engine with a high compression ratio of 16:1, delivering 173 hp at 2300 RPM, making it suitable for various agricultural tasks requiring significant power and torque. Its dry air cleaner with pre-cleaner ensures enhanced engine longevity by efficiently filtering out particulates in harsh environments. However, with an oil capacity of 19 quarts and coolant capacity of 31 quarts, regular maintenance is crucial to prevent overheating and ensure optimal performance during extended operating hours.
| Description | Allis Chalmers 670T turbocharged diesel 6-cylinder liquid-cooled Inline |
| Displacement | 426ci / 7.0L |
| Bore/Stroke | 4.25x5.00inches / 108x 127mm |
| Power | 173hp / 129.0kW |
| Air cleaner | dry with pre-cleaner |
| Compression | 16:1 |
| Rated RPM | 2300 |
| Starter volts | 12 |
| Oil capacity | 19qts / 18.0L |
| Coolant capacity | 31qts / 29.3L |
ALLIS CHALMERS 7045 ENGINE
The Allis Chalmers 7045 features a robust 7.0L 6-cylinder diesel engine, providing substantial torque for heavy-duty applications. With a 51-gallon fuel tank and an optional 13-gallon auxiliary tank, this tractor ensures extended operational hours, making it suitable for large agricultural tasks or long-duration uses. However, the size may lead to increased overall weight, potentially affecting maneuverability in tighter spaces.
| Description | Allis Chalmers 7.0L 6-cyl diesel |
| Fuel tank | 51gal / 193.0L 13gal / 49.2L (optional auxiliary tank) |
TRANSMISSIONS OVERVIEW
The Allis Chalmers 7045 features a 20-speed partial power shift transmission, allowing for smooth gear transitions and optimizing engine performance across various workloads. This type of transmission provides versatility in speed control, beneficial for both field work and transport scenarios. However, maintaining proficiency in operating a partial power shift system can pose a learning curve for some operators, necessitating training to maximize efficiency.
| Description | 20-speed partial power shift 12-speed partial power shift |
TRANSMISSION 1
The Allis Chalmers 7045 features a Power Director transmission with partial power shift, providing 20 forward and 4 reverse gears, allowing for efficient speed and torque management across various tasks. With an oil capacity of 29.6 quarts (28.0 liters), this tractor requires regular maintenance to ensure optimal hydraulic performance and longevity. Ideal for agricultural applications, the partial power shift system enhances versatility but may pose a learning curve for operators unfamiliar with such transmissions.
| Transmission | Power Director |
| Type | partial power shift |
| Gears | 20 forward and 4 reverse |
| Oil capacity | 29.6qts / 28.0L |
SPEEDS 1
| Description | With 18.4x38 rear tires |
TRANSMISSION 2
The Allis Chalmers 7045 features a partial power shift transmission, offering 12 forward and 2 reverse gears across two ranges, enhancing operational versatility. The primary advantage lies in its ability to shift gears under load, reducing downtime during field operations. However, users may face a steeper learning curve when mastering the power shift mechanism, which can affect performance in less experienced operators.
| Transmission | Power Shift |
| Type | partial power shift |
| Gears | 12 forward and 2 reverse |
| Description | Six gears in two ranges. Power shift between gears in range |
SPEEDS 2
| Description | With 18.4x38 rear tires |
MECHANICAL
The Allis Chalmers 7045 tractor features a versatile 4x2 2WD chassis, making it suitable for lighter duty operations but potentially limiting traction on uneven terrain compared to 4WD models. Its inboard planetary final drives enhance durability and reduce the risk of damage when operating under heavy loads, while the standard differential lock ensures improved traction in slippery conditions. The hydrostatic power steering provides ease of maneuverability, though the optional air-conditioning may be essential for operator comfort in hot climates during extended fieldwork.
| Chassis | 4x2 2WD |
| Final drives | inboard planetary |
| Differential lock | standard |
| Steering | hydrostatic power |
| Brakes | differential power wet disc |
| Cab | Acousta cab standard with heat. Air-conditioning optional. Radio and 8-track player optional. Four-post ROPS canopy optional |
| Transmissions | 20-speed partial power shift 12-speed partial power shift |
HYDRAULICS
| Type | closed center |
| Valves | 2 or 3 |
| Pump flow | 22gpm / 83.3lpm |
| Total flow | 45gpm / 170.3lpm |
| Steering flow | 9.5gpm / 36.0lpm |
TRACTOR HITCH
| Rear Type | 3/2 |
| Rear lift (at 24 | 6,680lbs / 3030kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000 |
ALLIS CHALMERS 7045 TIRES
The Allis Chalmers 7045 features a robust configuration for agricultural applications, notably with versatile tire sizes that allow adaptation for various terrain and crop conditions. The front tire size of 10.00x16 supports stability and steering precision, while the wide range of rear tire sizes (23.1x30 to 18.4x42) enhances traction and load-bearing capacity. However, it's essential to consider that larger rear tires may increase soil compaction risks and reduce maneuverability in tighter spaces.
| Ag front | 10.00x16 |
| Ag rear | 23.1x30 / 24.5x32 / 30.5x32 / 20.8x34 / 15.5x38 / 16.9x38 / 20.8x38 / 18.4x42 |
DIMENSIONS
| Wheelbase | 106inches / 269cm |
| Length | 168inches / 426cm |
| Width | 95.5inches / 242cm 119.5inches / 303cm (optional long axle) |
| Ground clearance | 21inches / 53cm (front axle) 28inches / 71cm (rear axle) |
| Rear axle | 4.00inch diameter / 101mm |
ALLIS CHALMERS 7045 WEIGHT
| Shipping | 11,450lbs / 5193kg |
| Operating | 14,500lbs / 6577kg (duals) |
| Ballasted | 18,990lbs / 8613kg |
ALLIS CHALMERS 7045 HEIGHT
| Steering wheel | 87inches / 220cm |
| Hood | 68inches / 172cm |
| Exhaust | 116inches / 294cm |
DIMENSIONS & TIRES
The Allis Chalmers 7045, with a wheelbase of 106 inches, offers enhanced stability and maneuverability for heavy-duty applications, particularly in row crop farming. Weighing between 11,450 to 14,500 pounds, it provides substantial traction, but operators should be mindful of soil compaction, especially in wet conditions. The combination of 11.00x16 front tires and 18.4x38 rear tires facilitates optimal power transfer and efficiency, making it suitable for plowing and heavy tillage tasks.
| Wheelbase | 106inches / 269cm |
| Weight | 11450 to 14500 pounds |
| Front tire | 11.00x16 |
| Rear tire | 18.4x38 |
7045 SERIAL NUMBERS
| Location | Above PTO shield |
| 1978 | 1234 |
| 1979 | 2152 |
| 1980 | 3399 |
| 1981 | 4225 |