| Manufacturer |
Avery |
| Price |
2,350(USD) |
| Model |
25-50 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Peoria, Illinois, USA |
NEBRASKA TRACTOR TEST 43
| Description |
Kerosene 2-speed 2WD/July 26 - 30, 1920/Link: Nebraska Tractor Test 43 file/Drawbar performance/Gear 2 used for power test. |
| Belt power (max) |
56.68 hp/42.3 kW |
| Belt fuel use (max) |
7.0 gal/hour/26.5 l/hour |
| Max power |
32.62 hp/24.3 kW |
| Max pull |
3,225 lbs/1462 kg |
AVERY 25-50 POWER
| Drawbar (claimed) |
25 hp/18.6 kW |
| Belt (claimed) |
50 hp/37.3 kW |
| Drawbar (tested) |
32.62 hp/24.3 kW |
| Belt (tested) |
56.68 hp/42.3 kW |
ENGINE DETAIL
The Avery 25-50 tractor features a robust 4-cylinder, kerosene engine with a substantial displacement of 1061.9 ci (17.4 L), promoting efficient power output for agricultural tasks. Its liquid-cooled, opposed horizontal design allows for effective thermal management, suitable for extended operation in demanding conditions. However, with a relatively low rated RPM of 700, it may not provide the rapid response needed for high-speed field operations, presenting a challenge in certain scenarios such as competitive plowing events.
| Description |
Avery/kerosene/4-cylinder/liquid-cooled opposed horizontal |
| Displacement |
1061.9 ci/17.4 L |
| Bore/Stroke |
6.50x8.00 inches/165 x 203 mm |
| Rated RPM |
700 |
| Coolant capacity |
220 qts/208.2 L |
AVERY 25-50 ENGINE
The Avery 25-50 tractor, powered by a 17.4L 4-cylinder kerosene engine, provides robust power delivery for various agricultural tasks, particularly in areas requiring prolonged fuel supply. The 50-gallon main fuel tank and 5-gallon auxiliary tank enhance operational efficiency, reducing downtime for refueling during extensive fieldwork. However, the kerosene fuel type may present challenges regarding availability and engine cold starting in colder climates compared to more common diesel alternatives.
| Description |
Avery 17.4L 4-cyl kerosene |
| Fuel tank |
50 gal/189.3 L |
| Aux. fuel |
5 gal/18.9 L |
TRANSMISSION
The Avery 25-50 tractor's unsynchronized gear system with 2 forward and 1 reverse gear offers simplicity in operation, which can be advantageous for novice operators or low-speed tasks. However, the lack of synchronization may lead to potential challenges in gear shifting, particularly under load, resulting in increased wear on the transmission components if not managed properly. This setup suits light agricultural work or vintage machinery enthusiasts who appreciate the straightforward mechanics of early tractor designs.
| Type |
unsynchronized gear |
| Gears |
2 forward and 1 reverse |
MECHANICAL
The Avery 25-50 tractor features a 4x2 2WD chassis, providing moderate traction and maneuverability suitable for flat terrain and light agricultural tasks. The 2-speed unsynchronized gear transmission may lead to challenges in shifting under load, potentially requiring skilled operation to avoid gear grinding. This setup is advantageous for cost-effective, simple maintenance yet might be limiting in versatility compared to models with synchronized or multi-range transmissions.
| Chassis |
4x2 2WD |
| Transmission |
2-speed unsynchronized gear |
AVERY 25-50 TIRES
The Avery 25-50 tractor features a robust front axle with 38x10-inch steel wheels and a rear axle with 69x20-inch steel wheels, providing significant stability and load-bearing capacity. Advantages include enhanced traction and maneuverability in agricultural applications, though the weight of the steel wheels may present challenges in softer terrains. It's well-suited for large field operations but may require additional power for towing heavy implements due to its structure.
| Ag front |
38x10 steel |
| Ag rear |
69x20 steel |
DIMENSIONS
| Length |
176 inches/447 cm |
| Width |
90.5 inches/229 cm |
| Height |
108 inches/274 cm |
| Operating weight |
12,500 lbs/5670 kg |
DIMENSIONS & TIRES
The Avery 25-50 tractor, with a weight of 12,500 lbs (5670 kg), offers a robust construction suitable for heavy-duty applications. Its front tires (38x10) provide enhanced maneuverability, while the larger rear tires (69x20) ensure increased traction and stability during field operations. Consider potential challenges such as navigating narrow spaces due to its weight and tire dimensions, which may limit versatility in certain terrains.
| Weight |
12,500 lbs/5670 kg |
| Front tire |
38x10 |
| Rear tire |
69x20 |
25-50 SERIAL NUMBERS
