| Manufacturer | Avery |
| Price | - |
| Model | 14-28 |
| Equipment Type | Standard-Tread Tractors |
| Factory | Peoria, Illinois, USA |
NEBRASKA TRACTOR TEST 42
| Description | Kerosene 2-speed 2WD/July 23 - August 2, 1920/Link: Nebraska Tractor Test 42 file/Drawbar performance |
| Belt power (max) | 31.83 hp/23.7 kW |
| Belt fuel use (max) | 4.2 gal/hour/15.9 l/hour |
| Max power | 21.52 hp/16.0 kW |
| Max pull | 3049 lbs/1383 kg |
AVERY 14-28 POWER
| Drawbar (claimed) | 14 hp/10.4 kW |
| Belt (claimed) | 28 hp/20.9 kW |
| Drawbar (tested) | 21.52 hp/16.0 kW |
| Belt (tested) | 31.83 hp/23.7 kW |
ENGINE DETAIL
The Avery 14-28 tractor features a kerosene-powered, liquid-cooled, opposed horizontal 4-cylinder engine with a substantial displacement of 470.4 cubic inches (7.7 liters), optimizing torque delivery for heavy agricultural tasks. With a bore and stroke of 4.625 x 7.00 inches, its design enables efficient combustion and power generation at a relatively low rated RPM of 800, which can contribute to extended engine longevity. However, potential challenges include limited RPM flexibility and the need for frequent fuel adjustments to optimize performance across varying load conditions.
| Description | Avery/kerosene/4-cylinder/liquid-cooled opposed horizontal |
| Displacement | 470.4 ci/7.7 L |
| Bore/Stroke | 4.625x7.00 inches/117 x 178 mm |
| Rated RPM | 800 |
| Coolant capacity | 120 qts/113.6 L |
AVERY 14-28 ENGINE
The Avery 14-28 tractor is equipped with a 7.7L four-cylinder kerosene engine, which provides efficient fuel consumption suitable for agricultural tasks. Its 20-gallon main fuel tank and 3.25-gallon auxiliary tank offer extended operational time, minimizing downtime for refueling during long hours of fieldwork. However, the reliance on kerosene may limit availability in some regions, potentially challenging its versatility in fuel sourcing.
| Description | Avery 7.7L 4-cyl kerosene |
| Fuel tank | 20 gal/75.7 L |
| Aux. fuel | 3.25 gal/12.3 L |
TRANSMISSION
The Avery 14-28 tractor features a simple [-|-] gear system with 2 forward and 1 reverse, allowing for straightforward operation in various agricultural tasks. While the limited gearing may limit speed and versatility compared to modern tractors, it provides ease of use for basic applications and can be advantageous in tight or confined spaces. Ideal for small to medium fields, its simplicity can also translate to lower maintenance requirements.
| Type | gear |
| Gears | 2 forward and 1 reverse |
MECHANICAL
The Avery 14-28 tractor features a 4x2 2WD chassis, ideal for flat terrains, offering limited traction in slippery or uneven ground conditions. Manual steering may require additional physical effort during operation, particularly in tight maneuvers. The 2-speed gear transmission allows for versatility in both low- and high-speed tasks, enhancing adaptability for various farming applications.
| Chassis | 4x2 2WD |
| Steering | manual |
| Transmission | 2-speed gear |
AVERY 14-28 TIRES
The Avery 14-28 tractor features agricultural front wheels with a size of 36x6 inches and robust 60x16 inch rear wheels, providing enhanced stability and traction for fieldwork. The wide rear tires can improve flotation on softer ground conditions, while the front steel wheels offer durability but may result in a harsher ride over uneven terrain. Considerations for use include optimizing tire pressure for specific soil types and the potential need for ballast to counterbalance heavier implements.
| Ag front | 36x6 steel |
| Ag rear | 60x16 steel |
DIMENSIONS
| Length | 152 inches/386 cm |
| Width | 68 inches/172 cm |
| Height | 104 inches/264 cm |
| Operating weight | 7540 lbs/3420 kg |
DIMENSIONS & TIRES
The Avery 14-28 tractor, with a weight of 7540 lbs (3420 kg), strikes a balance between stability and maneuverability, suitable for various agricultural tasks. The front and rear tires, measuring 36x6 and 60x16 respectively, enhance traction and load-bearing capability, enabling effective operation on diverse terrains. However, the relatively heavy weight may pose challenges in soft soil conditions, potentially leading to soil compaction.
| Weight | 7540 lbs/3420 kg |
| Front tire | 36x6 |
| Rear tire | 60x16 |
14-28 SERIAL NUMBERS
| Location | Serial number plate in the front of the tractor's operator platform, below steering wheel. |