Zetor 8640: all source data
All 60 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 | Zetor |
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| (no label) | Row-Crop tractor |
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| (no label) | Built in Brno, Czech Republic |
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| (no label) | Original price was $34,000 in 1999 |
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Engine| (no label) | Zetor 4.2L 4-cyl diesel |
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| Fuel tank | 28 gal | 106.0 L |
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Transmission| (no label) | 18-speed synchromesh |
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Power| Engine | 82 hp | 61.1 kW |
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| PTO (claimed) | 74 hp | 55.2 kW |
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Mechanical| Drive | 4x4 MWD 4WD |
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| Differential lock | electro-hydraulic rear |
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| (no label) | Power steering |
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| (no label) | Hydraulic wet disc brakes |
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| (no label) | Cab standard with available air-conditioning. Two-post ROPS available. |
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Hydraulics| Type | open center |
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| Pressure | 2600 psi | 179.3 bar |
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| Valves | 3 |
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| Pump flow | 16 gpm | 60.6 lpm |
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| Steering flow | 6.5 gpm | 24.6 lpm |
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Hitch| Rear Type | II |
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| Control | position and draft control |
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| Rear lift | 9000 lbs | 4082 kg |
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Pto| Rear PTO | independent |
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| Clutch | wet disc |
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| Rear PTO Type | 540/1000 (1.375) |
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Dimensions| Wheelbase | 93.5 inches | 237 cm |
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| Weight | 8430 lbs | 3823 kg |
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| Front tire | 12.4-24 |
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| Rear tire | 16.9-38 |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 55 |
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| Battery CCA | 1150 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Zetor Z 1201 |
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| (no label) | diesel |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 254 ci | 4.2 L |
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| Bore/Stroke | 4.134x4.724 inches | 105 x 120 mm |
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| Power | 82 hp | 61.1 kW |
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| Fuel system | direct injection |
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| Pre-heating | glow plugs |
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| Rated RPM | 2200 |
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| Starter | electric |
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| Starter volts | 12 |
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Transmission
Transmission| Type | synchromesh |
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| Gears | 18 forward and 6 reverse |
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| Clutch | 330mm hydraulic dry disc |
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| (no label) | Three gears in high/low/reverse ranges with a three-speed torque multiplier. |
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Dimensions
Tires| Ag front | 12.4-24 |
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| Ag rear | 16.9-38 |
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Dimensions| Wheelbase | 93.5 inches | 237 cm |
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| Length | 156 inches | 396 cm |
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| Width | 76 inches | 193 cm |
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| Height (cab) | 105 inches | 266 cm |
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| Weight | 8430 lbs | 3823 kg |
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| Ground clearance | 17 inches | 43 cm |
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| Front tread | 64 to 79.5 inches | 162 to 201 cm |
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| Rear tread | 59 to 71 inches | 149 to 180 cm |
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