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| info | |
| 1923 - 1927, Standard-tread tractor |
| Production | |
| Manufacturer: | Hart-Parr |
| Factory: | Charles City, Iowa, USA |
| Original price (USD), $2,250 (1927 ), | |
| Dimensions & Tires | |
| Weight: | 7500 lbs [3402 kg] |
| Front tire: | 28x5 |
| Rear tire: | 52x13 |
| 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. |
| Belt Pulley | |
| Diameter: | 14 inches [35 cm] |
| Width: | 9 inches [22 cm] |
| RPM: | 800 |
| Speed: | 2750 ft/min [838.20 meters/min] |
| info | |
| Bore/Stroke: | 5.50x6.50 inches [140 x 165 mm] |
| Rated RPM: | 800 |
| Engine Detail | |
| 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., Hart-Parr, gasoline, 4-cylinder, liquid-cooled, 617.7 ci [10.1 L] |
| Transmission | |
| Type: | gear |
| Gears: | 2 forward and 1 reverse |
| Clutch: | mechanical contracting band |
| Dimensions | |
| Weight: | 7500 lbs [3402 kg] |
| Length: | 140 inches [355 cm] |
| Width: | 96 inches [243 cm] |
| Height: | 67 inches [170 cm] |
| 2WD turn radius: | 13 feet [4.0 m] |
| Hart-Parr 40 Tires | |
| Ag front: | 28x5 (steel) |
| Ag rear: | 52x13 (steel) |