John Deere 4840 4WD Specs
(1978)
John Deere 4840 4WD General Information |
|
| Brand | John Deere |
| Model | John Deere 4840 4WD |
| Tractor Series | Iron Horses Series |
| Start year | 1978 |
| End year | 1982 |
| Category / Type | Row-Crop tractor |
| Distributor | - |
| Manufacturer | John Deere |
| Factory | Waterloo, Iowa, USA |
| Serial Number Location | Rear of tractor. |
| Number of total built | - |
| Original Price (in USD) | $60,000 (1982 ) |
John Deere 4840 4WD Chassis, dimensions, weight and tires |
|
| Cabin Type | Sound-Gard cab. |
| Wheelbase | 118.5 in |
| Length | 177 in |
| Width | 96 , 108 (long axle), 118 (long axle) in |
| Height | 117 (Cabin) in |
| Fuel Capacity | 103 |
| Weight | - lbs |
| Shipping weight | 14,900 lbs |
| Ballasted weight | 20,370 lbs |
| Operating Weight | 18,000 lbs |
| Front Tyres - Rims dimensions | 10.00-16 |
| Rear Tyres - Rims dimensions | 24.5-32 |
| Steering type | power |
| Brakes type | differential hydraulic wet disc |
| Agricultural Tires (R1) | 10.00-16 |
| Agricultural Tires (R1) | 24.5-32 |
| Turf Tires (R3) | - |
| Turf Tires (R3) | - |
| Industrial Tires (R4) | - |
| Industrial Tires (R4) | - |
John Deere 4840 4WD Electrical System |
|
| Charging System | alternator |
| Charging Voltage | - volts |
| Ground | negative |
| Charging Amperage | - A |
| Number of batteries | 2 |
| Battery - voltage | 6 volts |
| Battery - Amp / Hour | - Ah |
| Battery - Cold Cranking Amperage | - A |
| Battery - Group | - |
| Engine Starter - voltage | 12 v |
John Deere 4840 4WD Engine and Transmission Technical Data |
|
| Number of cylinders | 6-cylinder |
| Fuel Type | turbocharged intercooled diesel |
| Engine Code | John Deere |
| Engine size - Displacement - Engine capacity | 466 ci |
| Bore x Stroke | 4.5625x4.75 |
| Compression Ratio | 15.5:1 |
| Maximum power - Output - Horsepower | - hp @ 2200 rpm |
| Engine Cooling Type | liquid-cooled |
| Engine Air Filter / Cleaner | dual paper elements |
| Transmission Type | full power shift John Deere PowerShift |
| Transmission / Gearbox gears | 8 forward and 4 reverse |
| Transmission Clutch | - |
| Drive wheels - Traction - Drivetrain | 4x2 2WD |
John Deere 4840 4WD PTO - Power Take-Off |
|
| Rear PTO Type | independent |
| Rear PTO Power (Tested) | 180 hp ( 180.63 hp) |
| Rear PTO RPM | 1000 (1.75) |
John Deere 4840 4WD Drawbar |
|
| Drawbar Power (Tested) | 157 hp ( 151.21 hp) |
John Deere 4840 4WD Hydraulics |
|
| Type | closed center |
| Nº of valves | 2 or 3 |
| Pump flow | 23 gpm |
| Steering flow | - gpm |