| Manufacturer | Oliver |
| Price | - |
| Model | 80 |
| Equipment Type | Row-Crop Tractors |
| Factory | Charles City, Iowa, USA |
NEBRASKA TRACTOR TEST 300 2
| Description | Kerosene 3-speed 2WD/May 16 - 26, 1938/Link: Nebraska Tractor Test 300 file/Drawbar performance/Gear 2 used for power test./Gear 1 used for pull test. |
| Belt power (max) | 38.78 hp/28.9 kW |
| Belt fuel use (max) | 5.0 gal/hour/18.9 l/hour |
| Max power | 29.92 hp/22.3 kW |
| Max pull | 3,785 lbs/1716 kg |
OLIVER 80 POWER
| Plows | 3 |
| Drawbar (tested) | 29.92 hp/22.3 kW |
| Belt (tested) | 38.78 hp/28.9 kW |
ENGINES OVERVIEW
The Oliver 80 tractor features a robust Waukesha-Oliver engine configuration, offering options for both 5.5L kerosene and 4.9L gasoline, catering to diverse fuel preferences. A significant advantage is its efficient fuel usage, which can provide cost savings in agricultural operations, but challenges may arise in sourcing kerosene in certain regions. Additionally, the dual-fuel capability allows flexibility in scenarios where specific fuel types may be more economically viable.
| Description | Waukesha-Oliver 5.5L 4-cyl kerosene/Waukesha-Oliver 4.9L 4-cyl gasoline |
ENGINE DETAIL 1
The Oliver 80 tractor, powered by a 5.5 L Waukesha four-cylinder kerosene engine, provides reliable torque for heavy-duty fieldwork with a displacement of 334 ci. Its oil bath air cleaner enhances engine longevity by minimizing dirt ingress, although the hand-crank starter presents a challenge for operator convenience, especially in cold weather. Ideal for vintage agricultural applications, the tractor's low-rated RPM of 1200 allows for efficient fuel consumption, but may limit its speed in high-demand operations.
| Description | Waukesha-Oliver/kerosene/4-cylinder/liquid-cooled |
| Displacement | 334 ci/5.5 L |
| Bore/Stroke | 4.50x5.25 inches/114 x 133 mm |
| Air cleaner | oil bath |
| Rated RPM | 1200 |
| Starter type | hand-crank |
ENGINE DETAIL 2
The Oliver 80 tractor features a Waukesha 4-cylinder gasoline engine with a displacement of 298 ci (4.9 L), providing ample torque for agricultural tasks. The oil bath air cleaner enhances engine longevity by effectively trapping dirt and debris, while the 1200 RPM rated speed indicates a focus on low-end power over high-speed performance, suitable for heavy-duty applications like plowing and tilling. A notable challenge is the hand-crank starter, which may be less convenient compared to electric starters, particularly in cold weather or when consistent operation is required.
| Description | Waukesha-Oliver/gasoline/4-cylinder/liquid-cooled |
| Displacement | 298 ci/4.9 L |
| Bore/Stroke | 4.25x5.25 inches/108 x 133 mm |
| Air cleaner | oil bath |
| Rated RPM | 1200 |
| Starter type | hand-crank |
OLIVER 80 ENGINES
The Oliver 80 tractor features a Waukesha-Oliver engine variant, either a 5.5L kerosene or a 4.9L gasoline, allowing for flexibility in fuel selection based on availability and cost. Its fuel tank capacity ranges from 13 gallons in earlier models to 17 gallons post-1938, which supports extended operational time but may increase weight and handling challenges. This tractor is well-suited for tasks requiring moderate horsepower and is ideal for small to medium farms needing versatility in fuel type.
| Description | Waukesha-Oliver 5.5L 4-cyl kerosene/Waukesha-Oliver 4.9L 4-cyl gasoline |
| Fuel tank | 13 gal/49.2 L (early)/17 gal/64.3 L (after 1938) |
TRANSMISSIONS OVERVIEW
The Oliver 80 tractor, equipped with a 4-speed transmission, offers increased versatility and efficiency for various farming tasks compared to a 3-speed option, allowing for better control of engine RPM and torque in different terrains. This feature provides operators with the flexibility to optimize power delivery during heavy applications, enhancing productivity in the field. However, the complexity of a 4-speed gearbox may present a steeper learning curve for novice operators compared to a simpler 3-speed system.
| Description | 3-speed gear/4-speed gear |
TRANSMISSION 1
The Oliver 80 tractor features a simple 3-speed forward and 1-speed reverse transmission, offering basic operational versatility suitable for light agricultural tasks. The dry disc clutch provides reliable engagement and disengagement, though it may require more maintenance compared to wet clutches under heavy use. This configuration is advantageous for small-scale farming or hobbyists, but may lack the efficiency and power needed for larger, more demanding applications.
| Type | gear |
| Gears | 3 forward and 1 reverse |
| Clutch | dry disc |
TRANSMISSION 2
The Oliver 80 features a 4-speed transmission with a dry disc clutch, providing straightforward gear selection for various agricultural tasks. The addition of the four-speed gearbox in 1939 enhances versatility and compatibility with different implements, making it suitable for both light and moderate field work. However, the limited gear options may challenge operators in more demanding agricultural scenarios that require finer control over speed and torque.
| Type | gear |
| Gears | 4 forward and 1 reverse |
| Clutch | dry disc |
| Description | The four-speed transmission was added to the Row-Crop 80 in 1939. |
MECHANICAL
The Oliver 80 tractor features a 4x2 2WD chassis, which provides adequate traction for light to moderate agricultural tasks but may face challenges in uneven or slippery terrains. Its manual steering offers simplicity and reliability, though it requires greater operator effort compared to power-assisted systems. The 3-speed and 4-speed gear transmission provides versatility in speed settings, making it suitable for various field operations, but the lack of advanced transmission options may limit efficiency in complex tasks.
| Chassis | 4x2 2WD |
| Steering | manual |
| Cab | Open operator station. |
| Transmissions | 3-speed gear/4-speed gear |
OLIVER 80 TIRES
The Oliver 80 tractor features a rear tire specification of 11.25-40/11.25-42, indicating versatility in tire size which can enhance traction and stability depending on soil conditions. An advantage of this dual tire size option is improved adaptability for various agricultural tasks, while a potential challenge could be sourcing compatible replacement tires. To optimize performance, ensure proper tire pressure and load distribution according to the specific application, such as plowing or towing.
| Ag rear | 11.25-40/11.25-42 |
DIMENSIONS
| Weight | 4,800 lbs/2177 kg |
| Front tread | 5.5 to inches/13 to 0 cm |
| Rear tread | 60 to 72 inches/152 to 182 cm |
DIMENSIONS & TIRES
The Oliver 80 tractor, weighing 4,800 lbs (2,177 kg), is suitable for moderate agricultural tasks and offers good stability due to its lower center of gravity. The rear tires (11.25-40) provide adequate traction in varied terrain, making it effective for plowing and harvesting. However, its weight could pose challenges in muddy conditions, requiring caution to avoid becoming stuck.
| Weight | 4,800 lbs/2177 kg |
| Rear tire | 11.25-40 |