Allis Chalmers 4W-305: all source data
All 64 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) | Four-wheel Drive (4WD) tractor |
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| Original price | $93,685 |
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Engine| (no label) | Allis Chalmers 12.0L 6-cyl diesel |
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| Fuel tank | 200 gal | 757.0 L |
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Transmission| (no label) | 20-speed two-speed power shift |
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Power| Engine | 305 hp | 227.4 kW |
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| PTO (claimed) | 250 hp | 186.4 kW |
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Mechanical| (no label) | Four-wheel drive |
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| Final drives | planetary |
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| (no label) | Wet disc brakes |
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| (no label) | Cab standard with air-conditioning. |
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Hydraulics| Type | closed center load-sensing |
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| Valves | 3 |
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| SCV flow | 21 gpm | 79.5 lpm |
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| Total flow | 92 gpm | 348.2 lpm |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 1000 (1.75) |
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Dimensions| Wheelbase | 126 inches | 320 cm |
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| Weight | 27100 lbs | 12292 kg |
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| Front tire | 18.4x38 |
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| Rear tire | 18.4x38 |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Allis Chalmers 6120T |
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| (no label) | turbocharged diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled inline |
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| Displacement | 731 ci | 12.0 L |
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| Bore/Stroke | 5.25x5.625 inches | 133 x 143 mm |
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| Power | 305 hp | 227.4 kW |
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| Air cleaner | dry |
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| Compression | 16.25:1 |
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| Rated RPM | 2300 |
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| Idle RPM | 950-2580 |
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| Starter volts | 12 |
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| Oil capacity | 60 qts | 56.8 L |
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| Coolant capacity (Coolant) | 72 qts | 68.1 L |
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Transmission
Transmission| Transmission | Power Director |
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| Type | two-speed power shift |
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| Gears | 20 forward and 4 reverse |
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Dimensions
Tires| Ag front | 18.4x38 |
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| Ag rear | 18.4x38 |
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| Ag front | 23.1x30 |
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| Ag front | 24.5x32 |
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| Ag front | 30.5x32 |
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| Ag front | 20.8x38 |
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| Ag rear | 23.1x30 |
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| Ag rear | 24.5x32 |
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| Ag rear | 30.5x32 |
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| Ag rear | 20.8x38 |
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Dimensions| Wheelbase | 126 inches | 320 cm |
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| Length | 285 inches | 723 cm |
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| Height (hood) | 97 inches | 246 cm |
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| Height (cab) | 139 inches | 353 cm |
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| Shipping weight | 27100 lbs | 12292 kg |
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| Clearance (front axle) | 25.8 inches | 65 cm |
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| Clearance (rear axle) | 29.9 inches | 75 cm |
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| Front axle | 95.5 inch length | 2425 mm |
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| Front axle | 119.5 inch length | 3035 mm |
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| Rear axle | 95.5 inch length | 2425 mm |
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| Rear axle | 119.5 inch length | 3035 mm |
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