John Deere 4640 Row-Crop Tractors Specifications
Engine
The engine is a John Deere turbocharged intercooled diesel 6-cylinder liquid-cooled with a displacement of 466ci / 7.6L and bore/stroke of 4.5625x4.75inches / 116x 121mm. It has a pre-heating system that uses ether and a compression ratio of 15.5:1. The engine is rated at 2200 rpm and has an idle rpm range of 800-2400. The operating rpm range is 1500-2200 and the firing order is 1-5-3-6-2-4. The starter volts are 12 and the oil capacity is 20qts / 18.9L while the coolant capacity is 38qts / 36.0L.
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Find Suppliers & Request SamplesTransmission
The transmission details are not specified in the data provided.
Brakes
The brakes are differential hydraulic wet disc brakes with a pedal-actuated hydraulic differential lock. The Sound-Gard cab is standard. The John Deere 4640 model has a drive system of 4x2 2WD/4x4 HFWD 4WD.
Steering
The steering is hydrostatic power and is described as a John Deere 7.6L 6-cyl diesel.
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Find Suppliers & Request SamplesCommon Problems
Users of the John Deere 4640 model have reported issues with the transmission system, particularly with shifting gears. Some users have also reported problems with the hydraulic system, including leaks and low pressure. Another common problem is with the electrical system, with some users reporting issues with the starter and alternator. Additionally, some users have reported issues with the fuel system, including clogged filters and fuel pump failures. Finally, some users have reported issues with the brakes, including premature wear and failure.
What Users Like
Users of the John Deere 4640 model appreciate the powerful engine, which provides plenty of torque and horsepower for heavy-duty tasks. They also like the comfortable and spacious cab, which provides good visibility and reduces operator fatigue. Additionally, users appreciate the easy-to-use controls and the reliable performance of the tractor. Finally, many users appreciate the versatility of the tractor, which can be used for a wide range of tasks, including plowing, planting, and harvesting crops.
Techincal Specifications
Engine Detail | |
| Description | John Deere turbocharged intercooled diesel 6-cylinder liquid-cooled |
| Displacement | 466ci / 7.6L |
| Bore/stroke | 4.5625x4.75inches / 116x 121mm |
| Pre-heating | ether |
| Compression | 15.5:1 |
| Rated Rpm | 2200 |
| Idle Rpm | 800-2400 |
| Operating Rpm | 1500-2200 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
| Oil Capacity | 20qts / 18.9L |
| Coolant Capacity | 38qts / 36.0L |
Engine | |
| Description | John Deere 7.6L 6-cyl diesel |
Mechanical | |
| Drive | 4x2 2WD/4x4 HFWD 4WD |
| Differential Lock | pedal-actuated hydraulic |
| Steering | hydrostatic power |
| Description | Differential hydraulic wet disc brakes/Sound-Gard cab standard |
Tires | |
| Ag Front | 10.00-16 |
| Ag Rear | 24.5-32 / 30.5-32 / 20.8-38 / 18.4-42 |
Dimensions And Tires | |
| Wheelbase | 118.5inches / 300cm |
| Weight | 14350 to 15700 pounds |
| Front Tire | 11.00-16 |
| Rear Tire | 18.4-38 |
Serial Numbers | |
| 1979 | 7422 |
| 1989 | 25729 |
Capacity | |
| Fuel | 83gal / 314.2L |
| Hydraulic System | 16.5gal / 62.5L |
Hydraulics | |
| Type | closed center |
| Capacity | 16.5gal / 62.5L |
| Valve | 2 or 3 |
| Pump Flow | 23gpm / 87.1lpm |
Tractor Hitch | |
| Rear Type | III/IIIN |
| Rear Lift | 7328lbs / 3323kg |
Electrical | |
| Ground | negative |
| Charging System | alternator |
| Batteries | 2 |
| Battery Volts | 6 |
Power Take Off Pto | |
| Rear Pto | independent |
| Rear Rpm | 1000 (1.75) |
Transmissions | |
| Description | 16-speed partial power shift 8-speed full power shift |
Serial Location | |
| Description | Serial number plate on the rear of the 4640, above the PTO shaft |