Zetor
Zetor 8640
The Zetor 8640 is a row-crop tractor produced from 1996 to 1999 by Zetor in Brno, Czech Republic. It features a 4.2L 4-cylinder liquid-cooled diesel engine producing 82 hp, paired with an 18-speed synchromesh transmission. The tractor has 4WD drive, electro-hydraulic rear differential lock, and hydraulic wet disc brakes. It includes a standard cab with optional air-conditioning and two-post ROPS. The hydraulics system is open center with 2600 psi pressure and 3 valves. The rear hitch is category II with position and draft control and a lift capacity of 9000 lbs. The PTO is independent with wet disc clutch and operates at 540/1000 RPM. Dimensions include a 93.5 inch wheelbase, 156 inch length, and 8430 lbs weight. Tires are 12.4-24 front and 16.9-38 rear. Electrical system features a 12 volt negative ground with 55 amp alternator.
Power82 hp
Founded1989 - 1999
Model8640
Technical Specifications
Detailed specifications and technical data for Zetor 8640
Power
| Engine power | 82 hp (61.1 kW) |
|---|---|
| PTO (claimed) | 74 hp (55.2 kW) |
Engine
| Type | diesel |
|---|---|
| Model | Zetor Z 1201 |
| Power | 82 hp (61.1 kW) |
| Cooling | liquid-cooled |
| Starter | electric |
| Cylinders | 4-cylinder |
| Rated RPM | 2200 |
| Bore/Stroke | 4.134x4.724 inches (105 x 120 mm) |
| Fuel system | direct injection |
| Pre-heating | glow plugs |
| Displacement | 254 ci (4.2 L) |
| Starter volts | 12 |
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 1150 |
| Battery volts | 12 |
| Charging amps | 55 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Valves | 3 |
| Pressure | 2600 psi (179.3 bar) |
| Pump flow | 16 gpm (60.6 lpm) |
| Steering flow | 6.5 gpm (24.6 lpm) |
Mechanical
| Cab | standard with available air-conditioning. Two-post ROPS available. |
|---|---|
| Drive | 4x4 MWD 4WD |
| Brakes | Hydraulic wet disc brakes |
| Power steering | yes |
| Differential lock | electro-hydraulic rear |
Production
| Type | Row-Crop tractor |
|---|---|
| Built in | Brno, Czech Republic |
| Original price | $34,000 in 1999 |
| Years produced | 1996 - 1999 |
Transmission
| Type | synchromesh |
|---|---|
| Gears | 18 forward and 6 reverse |
| Clutch | 330mm hydraulic dry disc |
| Description | Three gears in high/low/reverse ranges with a three-speed torque multiplier. |
Tractor hitch
| Control | position and draft control |
|---|---|
| Rear Type | II |
| Rear lift capacity | 9000 lbs (4082 kg) |
Dimensions & Tires
| Width | 76 inches (193 cm) |
|---|---|
| Length | 156 inches (396 cm) |
| Weight | 8430 lbs (3823 kg) |
| Rear tire | 16.9-38 |
| Wheelbase | 93.5 inches (237 cm) |
| Front tire | 12.4-24 |
| Rear tread | 59 to 71 inches (149 to 180 cm) |
| Front tread | 64 to 79.5 inches (162 to 201 cm) |
| Height (cab) | 105 inches (266 cm) |
| Ground clearance | 17 inches (43 cm) |
Power Take-off (PTO)
| Clutch | wet disc |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540/1000 (1.375) |