Gray Tractor 20-36: all source data
All 35 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 | Gray Tractor |
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| (no label) | Standard-tread tractor |
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| (no label) | Built in Minneapolis, Minnesota, USA |
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| (no label) | Original price was $1,975 in 1922 |
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Engine| (no label) | Waukesha 6.5L 4-cyl gasoline |
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Transmission| (no label) | 2-speed gear |
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Power| Drawbar (claimed) | 20 hp | 14.9 kW |
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| Belt (claimed) | 36 hp | 26.8 kW |
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| Plows | 4 |
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Mechanical| Drive | 3x1 drum drive |
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| (no label) | Manual steering |
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| (no label) | Open operator station. |
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Dimensions| Wheelbase | 104 inches | 264 cm |
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| Weight | 6300 lbs | 2857 kg |
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| Front tire | 40x8 |
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| Rear tire | 54x54 |
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Belt pulley| Diameter | 11.5 inches | 29 cm |
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| Width | 8 inches | 20 cm |
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| Speed | 3000 ft/min | 914.40 meters/min |
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Engine
Engine detail| (no label) | Waukesha DU |
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| (no label) | gasoline |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled inline |
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| Displacement | 398 ci | 6.5 L |
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| Bore/Stroke | 4.50x6.25 inches | 114 x 159 mm |
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| Rated RPM | 1000 |
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Transmission
Transmission| Type | gear |
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| Gears | 2 forward and 1 reverse |
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Dimensions
Tires| Ag front | 40x8 steel |
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| Ag rear | 54x54 steel |
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Dimensions| Wheelbase | 104 inches | 264 cm |
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| Length | 174 inches | 441 cm |
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| Width | 81 inches | 205 cm |
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| Height | 63 inches | 160 cm |
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| Weight | 6300 lbs | 2857 kg |
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