Hart-Parr
Hart-Parr 30
The Hart-Parr 30 is a standard-tread farm tractor produced from 1919 to 1924 by Hart-Parr in Charles City, Iowa, USA. It features a 7.6L 2-cylinder liquid-cooled gasoline engine rated at 750 RPM, with a 2-speed gear transmission (2 forward and 1 reverse). The tractor delivers a claimed drawbar power of 15 hp and belt power of 30 hp, with tested drawbar and belt powers of 19.65 hp and 31.37 hp respectively. It has a two-wheel drive with bull gear final drives and manual steering, and an open operator station. The tractor weighs 5450 lbs and rides on steel tires sized 28x5 front and 52x10 rear. Originally priced at $1,395 in 1924, it was designed to pull 3 plows.
Power33 hp[B]
Founded1919 - 1924
Model30
Technical Specifications
Detailed specifications and technical data for Hart-Parr 30
Power
| Plows | 3 |
|---|---|
| Belt (tested) | 31.37 hp (23.4 kW) |
| Belt (claimed) | 30 hp (22.4 kW) |
| Drawbar (tested) | 19.65 hp (14.7 kW) |
| Drawbar (claimed) | 15 hp (11.2 kW) |
Tires
| Rear tire | 52x10 (steel) |
|---|---|
| Front tire | 28x5 (steel) |
Engine
| Type | gasoline |
|---|---|
| Cooling | liquid-cooled |
| Cylinders | 2-cylinder |
| Rated RPM | 750 |
| Bore/Stroke | 6.50x7.00 inches (165 x 178 mm) |
| Displacement | 464.6 ci (7.6 L) |
| Engine Detail | Hart-Parr 7.6L 2-cyl gasoline |
Dimensions
| Width | 76 inches (193 cm) |
|---|---|
| Height | 61 inches (154 cm) |
| Length | 141 inches (358 cm) |
| Operating weight | 5450 lbs (2472 kg) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Steering | Manual steering |
| Final drives | bull gear |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Charles City, Iowa, USA |
| Manufacturer | Hart-Parr |
| Original price | $1,395 in 1924 |
| Production years | 1919 - 1924 |
Transmission
| Type | gear |
|---|---|
| Gears | 2 forward and 1 reverse |