Overview
The Avery 15-25 is a 1922-1924 farm tractor produced in Peoria, Illinois, featuring a half-track crawler configuration with two front wheels and two rear tracks. It is powered by a 4.5L 4-cylinder liquid-cooled vertical gasoline engine and weighs approximately 5000 lbs.
Ideal Applications
Tested Power Output:
In Nebraska Tractor Test 89, this model achieved a maximum belt power of 30.6 hp and a maximum drawbar power of 20.13 hp, exceeding its claimed ratings.
Mechanical Drive System:
The tractor is equipped with a 3-speed gear transmission providing three forward gears and one reverse gear, operated via a mechanical disc clutch.
Traction and Dimensions:
The configuration utilizes 26x3 steel front wheels and rear tracks on a 108-inch long frame with a maximum pull capacity tested at 3280 lbs.
Production
| Description | Half-track Crawler tractor / Built in Peoria, Illinois, USA / The Avery 15-25 "Track Runner" featured two wheels in the front and two tracks in the rear. |
|---|---|
| Manufacturer | Avery |
Engine
| Engine type | Avery 4.5L 4-cyl gasoline |
|---|---|
| Fuel tank | 33 gal (124.9 L) |
| Bore/Stroke | 4.00x5.00 inches (102 x 127 mm) |
| Description | Avery / gasoline / 4-cylinder / liquid-cooled vertical |
| Displacement | 276.5 ci (4.5 L) |
| Rated RPM | 1125 |
| Belt (claimed) | 25 hp (18.6 kW) |
| Belt (tested) | 30.6 hp (22.8 kW) |
| Drawbar (claimed) | 15 hp (11.2 kW) |
| Drawbar (tested) | 20.13 hp (15.0 kW) |
Transmission
| Clutch | mechanical disc |
|---|---|
| Gears | 3 forward and 1 reverse |
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
Dimensions & Tires
| Ag front | 26x3 steel |
|---|---|
| Ag rear | tracks |
| Height | 58 inches (147 cm) |
| Length | 108 inches (274 cm) |
| Weight | 5000 lbs (2268 kg) |
| Width | 48 inches (121 cm) |
| Front tire | 26x3 |
| Rear tire | tracks |
| Weight | 5000 lbs (2268 kg) |
15-25 Serial Numbers
| Location: | frame |
|---|
Nebraska Tractor Test 89
| Belt power (max) | 30.6 hp (22.8 kW) |
|---|---|
| Description | Gasoline 3-speed half-trackMarch 16 - April 12, 1923Link: Nebraska Tractor Test 89 file / Drawbar performance |
| Max power | 20.13 hp (15.0 kW) |
| Max pull | 3280 lbs (1487 kg) |