Overview
The Hart-Parr 30 is a 2WD farm tractor produced in Charles City, Iowa, between 1919 and 1924, originally priced at $1,395. It features a 7.6L 2-cylinder liquid-cooled engine and an open operator station with steel wheels and manual steering.
Ideal Applications
Nebraska Test Performance:
In Nebraska Tractor Test 26, the unit achieved a maximum drawbar power of 19.65 hp and a maximum pull of 3,494 lbs while utilizing a kerosene-fueled 2-speed transmission.
Belt and Engine Specifications:
The 464.6 ci liquid-cooled engine is rated at 750 RPM and produced a tested belt power of 31.37 hp with a fuel consumption rate of 4.7 gallons per hour.
Physical Dimensions and Weight:
This standard-tread tractor has an operating weight of 5,450 lbs, measuring 141 inches in length and 76 inches in width, and is equipped with 52x10 steel rear wheels.
Production
| Description | Standard-tread tractor / Built in Charles City, Iowa, USA / Original price was $1,395 in 1924 |
|---|---|
| Manufacturer | Hart-Parr |
Engine
| Engine type | Hart-Parr 7.6L 2-cyl gasoline |
|---|---|
| Bore/Stroke | 6.50x7.00 inches (165 x 178 mm) |
| Description | Hart-Parr / gasoline / 2-cylinder / liquid-cooled |
| Displacement | 464.6 ci (7.6 L) |
| Rated RPM | 750 |
| Belt (claimed) | 30 hp (22.4 kW) |
| Belt (tested) | 31.37 hp (23.4 kW) |
| Drawbar (claimed) | 15 hp (11.2 kW) |
| Drawbar (tested) | 19.65 hp (14.7 kW) |
| Plows | 3 |
Transmission
| Gears | 2 forward and 1 reverse |
|---|---|
| Transmission type | 2-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
| Final drives | bull gear |
Dimensions & Tires
| Height | 61 inches (154 cm) |
|---|---|
| Length | 141 inches (358 cm) |
| Operating weight | 5450 lbs (2472 kg) |
| Width | 76 inches (193 cm) |
| Front tire | 28x5 |
| Rear tire | 52x10 |
| Weight | 5450 lbs (2472 kg) |
| Ag front | 28x5 (steel) |
| Ag rear | 52x10 (steel) |
30 Serial Numbers
| 1919 | 9383 |
|---|---|
| 1920 | 13018 |
| 1921 | 18475 |
| 1922 | 19125 / 21000 (30C) |
| 1923 | 21393 (30C) |
| 1924 | 21865 (30C) |
| Description | FAQ: How to read a serial number table. |
Nebraska Tractor Test 26
| Belt fuel use (max) | 4.7 gal/hour (17.8 l/hour) |
|---|---|
| Belt power (max) | 31.37 hp (23.4 kW) |
| Description | Kerosene 2-speed 2WDJune 17 - 22, 1920Link: Nebraska Tractor Test 26 file / Drawbar performance |
| Max power | 19.65 hp (14.7 kW) |
| Max pull | 3494 lbs (1584 kg) |