The John Deere 2640 is a 2WD utility tractor from the 2040 series. This tractor was manufactured by John Deere in Dubuque, Iowa, USA from 1976 to 1982 (the first generation: 1976-1979, the second generation: 1980-1982). The first generation of the John Deere 2640 was equipped with a 4.5 L (276.0 cu·in) four-cylinder diesel engine and one of three transmissions: a collar shift transmission with 8 forward and 4 reverse gears, a two-speed power transmission with 16 forward and 8 reverse gears or a power shuttle transmission with 8 forward and 8 reverse gears.
The John Deere 2640 utility tractor used the John Deere engine. It is a 4.5 L, 4,523 cm2, (276.0 cu·in) four-cylinder natural aspirated diesel engine with 106.0 mm (4.17 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 16.7:1. This engine produced 71 PS (52.2 kW; 70.0 HP) at 2,500 rpm of PTO output power.
The JD 2640 is equipped with mechanical steering with power assist, differential hydraulic wet disc brakes, open operator station and 73.8 liters (19.5 US gal.; 16.2 Imp. gal) fuel tank.
John Deere 2640 Specifications
| General Specifications | |
| Model | John Deere 2640 |
| Length | 3,540 mm (139.4 in) |
| Width | 1,760 mm (69.3 in) |
| Height | 2,580 mm (101.6 in) |
| Wheel base | 2,170 mm (85.4 in) |
| Ground clearance | 650 mm (25.6 in) |
| Weight | 2,630 kg (5,798 lbs) |
| Fuel tank capacity | 73.8 liters (19.5 US gal.; 16.2 Imp. gal) |
| Battery | 12V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Diesel |
| Displacement | 4.5 L, 4,523 cm2, (276.0 cu·in) |
| Bore and stroke | 106.0 mm X 127.0 mm (4.17 in X 5 in) |
| Compression ratio | 16.7:1 |
| Horsepower | 71 PS (52.2 kW; 70.0 HP) at 2,500 rpm |
| Starter | Electric |
| Coolant capacity: | 11.4 L (12 US. qt, 10 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Mechanical with power assist |
| Brakes | Differential hydraulic wet disc |
| Final drive | Planetary Differential lock: mechanical rear |
| Differential lock | Mechanical rear |
| Transmission model | – |
| Transmission type | Collar shift |
| Gears | 8 forward and 4 reverse |
| Speed | Forward: 26.2 kmh (16.3 mph) Reverse: 8.6 (5.3 mph) |
| Transmission model | Hi-Lo |
| Transmission type | Two-speed power shift with dry disc clutch |
| Gears | 16 forward and 8 reverse |
| Speed | Forward: 26.2 kmh (16.3 mph) Reverse: 8.6 (5.3 mph) |
| Transmission model | Direction Reverser |
| Transmission type | Power shuttle |
| Gears | 8 forward and 8 reverse |
| Tires | |
| Front tires | Ag: 6.00-16 |
| Rear tires | Ag: 16.9-28 |
| Three-Point Hitch | |
| Caterogy | II/I |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 540, 540/1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center |
| Hydraulic capacity | 37.9 L (40.05 US. qt, 33.35 Imp. qt.) |
| Pressure | 2250 psi (155.1 bar) |
| Pump flow | 9.0 gpm (34.1 lpm) 15.0 gpm (56.8 lpm) |
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