Hart-Parr 40
Type: Standard-tread Tractors
Contents:
Production | |
| Manufacturer: | Hart-Parr |
| Type: | Standard-tread tractor |
| Factory: | Charles City, Iowa, USA |
| Original price: | $2,250 (1927 ) |
Hart-Parr 40 Power | |
| Drawbar (claimed): | 22 hp 16.4 kW |
| Belt (claimed): | 40 hp 29.8 kW |
| Drawbar (tested): | 28.23 hp 21.1 kW |
| Belt (tested): | 46.40 hp 34.6 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| Steering: | manual |
| Cab: | Open operator station. |
| Transmission: | 2-speed gear |
40 Serial Numbers | |
| 1923: | 70001 |
| 1924: | 70020 |
| 1925: | 70095 |
| 1926: | 70251 |
| 1927: | 70491 |
| Final: | 70500 |
Engine Detail | |
| Hart-Parr | |
| gasoline | |
| 4-cylinder | |
| liquid-cooled | |
| The Hart-Parr 22-40 used a pair of two-cylinder engine blocks from the 20C on a single crankshaft to create the four-cylinder engine. Early models used two carburetors while later models had a single carburetor to feed both blocks. | |
| Displacement: | 617.7 ci 10.1 L |
| Bore/Stroke: | 5.50x6.50 inches 140 x 165 mm |
| Rated RPM: | 800 |
Transmission | |
| Type: | gear |
| Gears: | 2 forward and 1 reverse |
| Clutch: | mechanical contracting band |
Dimensions | |
| Length: | 140 inches 355 cm |
| Width: | 96 inches 243 cm |
| Height: | 67 inches 170 cm |
| Weight: | 7500 lbs 3402 kg |
