The John Deere 4640 is a 2WD/4WD row-crop tractor from the Iron Horses series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1978 to 1982. The JD 4640 is equipped with a 7.6 L six-cylinder diesel engine and one of two transmissions: partial power shift transmission with 16 forward and 6 reverse gears or full power shift transmission with 8 forward and 4 reverse.
The John Deere 4640 row-crop tractor used the John Deere engine. It is a 7.6 L, 7,636 cm2, (466.0 cu·in) six-cylinder diesel engine with 116.0 mm (4.57 in) of the cylinder bore and 121.0 mm (4.76 in) of the piston stroke. This engine produced 157.2 PS (115.6 kW; 155.0 HP) of PTO output power.
The JD 4640 is equipped with hydrostatic power steering, differential hydraulic wet disc brakes, Sound-Gard cab and 314.2 liters (83 US gal.; 69.1 Imp. gal) fuel tank. This tractor could be equipped with the John Deere 168 loader.
John Deere 4640 Specifications
General Specifications | |
Model | John Deere 4640 |
Length | 4,340 mm (170.9 in) |
Width | 2,430 mm (95.7 in) |
Height | 2,970 mm (116.9 in) |
Wheel base | 3,000 mm (118.1 in) |
Weight | 7,121 kg (15,700 lbs) |
Fuel tank capacity | 314.2 liters (83.0 US gal.; 69.0 Imp. gal) |
Battery | 6V x 2 |
Cabin type | Sound-Gard cab |
Engine | |
Engine model | John Deere |
Engine type | Four-stroke, liquid-cooled, inline |
Cylinders | 6 |
Fuel type | Diesel |
Displacement | 7.6 L, 7,636 cm2, (466.0 cu·in) |
Bore and stroke | 116.0 mm X 121.0 mm (4.57 in X 4.76 in) |
Compression ratio | 15.5:1 |
Horsepower | 157.2 PS (115.6 kW; 155.0 HP) |
Starter | Electric |
Oil capacity: | 18.9 L (20 US. qt, 16.6 Imp. qt.) |
Coolant capacity: | 36.0 L (38 US. qt, 31.7 Imp. qt.) |
Transmission and chassis | |
Chassis | 4×2 2WD or 4×4 MFWD 4WD |
Steering type | Hydrostatic power |
Brakes | Differential hydraulic wet disc |
Differential lock | Pedal-actuated hydraulic |
Transmission model | John Deere Quad-Range |
Transmission type | Partial power shift |
Gears | 16 forward and 6 reverse |
Speed | Forward: 31.5 kmh (19.6 mph) Reverse: 20.3 (12.6 mph) |
Transmission model | John Deere PowerShift |
Transmission type | Full power shift |
Gears | 8 forward and 4 reverse |
Speed | Forward: 31.4 kmh (19.5 mph) Reverse: 10.8 (6.7 mph) |
Tires | |
Front tires | Ag: 11.00-16, 10.00-16, 14L-16.1, 16.5L-16.1, 9.50-20 |
Rear tires | Ag: 18.4-38, 24.5-32, 30.5-32, 20.8-38, 18.4-42 |
Three-Point Hitch | |
Caterogy | III/IIIN |
Control type | – |
Lift capacity (at ends) | 3,320 kg (7,320 lbs) |
PTO (Power take-off shaft) | |
Rear PTO type | Independent |
Rear PTO spped | 1,000 rpm |
Hydraulic system | |
Hydraulic type | Closed center |
Hydraulic capacity | 62.5 L (66.04 US. qt, 54.99 Imp. qt.) |
Valves | 2 to 3 |
Pump flow | 23.0 gpm (87.1 lpm) |
We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.
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