The John Deere 4840 is a 2WD 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 4840 is equipped with a 7.6 L six-cylinder diesel engine and full power shift transmission with 8 forward and 4 reverse gears.
The John Deere 4840 row-crop tractor used the John Deere engine. It is a 7.6 L, 7,636 cm2, (466.0 cu·in) six-cylinder turbocharged intercooled 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 202.6 PS (149.0 kW; 200.0 HP) of output power.
The John Deere 4840 is equipped with power steering, differential hydraulic wet disc brakes, Sound-Gard Cab and 390.0 liters (103 US gal.; 85.8 Imp. gal) fuel tank.
John Deere 4840 Specifications
General Specifications | |
Model | John Deere 4840 |
Length | 4,490 mm (176.8 in) |
Width | 2,430 mm (95.7 in) |
Height | 2,970 mm (116.9 in) |
Wheel base | 3,000 mm (118.1 in) |
Weight (operating) | 8,165 kg (18,000 lbs) |
Fuel tank capacity | 390.0 liters (103 US gal.; 85.8 Imp. gal) |
Battery | Two 6V |
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 | 202.6 PS (149.0 kW; 200.0 HP) |
Starter | Electric |
Coolant capacity: | 37.9 L (40 US. qt, 33.3 Imp. qt.) |
Transmission and chassis | |
Chassis | 4×2 2WD |
Steering type | Power |
Brakes | Differential hydraulic wet disc |
Differential lock | Pedal-actuated hydraulic |
Transmission model | John Deere PowerShift |
Transmission type | Full power shift |
Gears | 8 forward and 4 reverse |
Speed | Forward: 29.9 kmh (18.6 mph) Reverse: 10.3 (6.4 mph) |
Transmission oil capacity | 75.7 L (20 US. gal, 16.7 Imp. gal.) |
Tires | |
Front tires | Ag: 11.00-16 |
Rear tires | Ag: 18.4-38 |
Three-Point Hitch | |
Caterogy | III/IIIN |
Control type | – |
Lift capacity (at ends) | 3,760 kg (8,290 lbs) |
PTO (Power take-off shaft) | |
Rear PTO type | Independent |
Rear PTO speed | 1,000 rpm |
Hydraulic system | |
Hydraulic type | Closed center |
Hydraulic capacity | 62.5 L (66.04 US. qt, 54.99 Imp. qt.) |
Valves | 2 or 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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