Allis Chalmers H3: all source data
All 58 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Allis Chalmers |
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| (no label) | Agricultural Crawler tractor |
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| (no label) | Built in Springfield, Illinois, USA |
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| (no label) | The Allis-Chalmers H3 crawler was based on the gas-powered D15 farm tractor. |
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Engine| (no label) | Allis Chalmers 2.4L 4-cyl gasoline |
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Transmission| (no label) | 8-speed two-speed power shift |
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| (no label) | 4-speed mechanical shuttle |
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Power| Drawbar (tested) | 25.48 hp | 19.0 kW |
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| PTO (tested) | 32.11 hp | 23.9 kW |
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Mechanical| Drive | crawler |
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| Steering | mechanical clutches |
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| (no label) | Mechanical contracting band brakes |
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| (no label) | Open operator station. |
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Capacity| Fuel | 14 gal | 53.0 L |
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| Hydraulic system | 16.5 gal | 62.5 L |
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Hydraulics| Type | open center |
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| Capacity | 16.5 gal | 62.5 L |
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| Valves | 1 to 3 |
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| Pump flow | 15 gpm | 56.8 lpm |
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| Pump flow | 25 gpm (optional) | 94.6 lpm |
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Pto| Rear PTO | optional |
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| Rear PTO Type | 540 |
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Dimensions| Wheelbase | 64 inches | 162 cm |
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| Weight | 7395 lbs | 3354 kg |
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| (no label) | 7-inch tracks |
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Engine
Engine detail| (no label) | Allis Chalmers |
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| (no label) | gasoline |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 149 ci | 2.4 L |
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| Bore/Stroke | 3.50x3.875 inches | 89 x 98 mm |
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| Fuel system | Marvel-Schebler carburetor |
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| Air cleaner | oil bath |
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| Compression | 7.5:1 |
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| Rated RPM | 1650 |
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| Starter | electric |
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| Starter volts | 12 |
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| Coolant capacity (Coolant) | 9 qts | 8.5 L |
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Transmission
Transmission options| (no label) | 8-speed two-speed power shift |
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| (no label) | 4-speed mechanical shuttle |
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Transmission| Transmission | Power Director |
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| Type | two-speed power shift |
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| Gears | 8 forward and 2 reverse |
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| Clutch | wet disc (Power Director) |
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| Clutch | dry disc (gear) |
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| (no label) | Four gears (1-4) plus reverse (R) with two-speed high/low power shift. |
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| Type | mechanical shuttle |
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| Gears | 4 forward and reverse |
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Dimensions
Tracks| Width | 7 inches | 17 cm |
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| Width | 10 inches | 25 cm |
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| Width | 12 inches | 30 cm |
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| Width | 14 inches | 35 cm |
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Dimensions| Wheelbase | 64 inches | 162 cm |
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| Length | 108.75 inches | 276 cm |
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| Height (hood) | 48.3 inches | 122 cm |
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| Height (exhaust) | 71.7 inches | 182 cm |
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| Weight | 7395 lbs | 3354 kg |
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| Gauge | 48 inches | 121 cm |
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