John Deere 4640 Specs ( 1978-1982 )
Production
| Description | Row-Crop tractor / Built in Waterloo, Iowa, USA |
|---|---|
| Manufacturer | John Deere |
| Original price | $46,316 (1982 Quad-Range ROPS 2WD ) |
Engine
| Engine type | John Deere 7.6L 6-cyl diesel |
|---|---|
| Fuel tank | 83 gal (314.2 L) |
| Bore/Stroke | 4.5625x4.75 inches (116 x 121 mm) |
| Compression | 15.5:1 |
| Coolant capacity | 38 qts (36.0 L) |
| Description | John Deere / turbocharged intercooled diesel / 6-cylinder / liquid-cooled |
| Displacement | 466 ci (7.6 L) |
| Firing order | 1-5-3-6-2-4 |
| Fuel system | direct injection |
| Idle RPM | 800-2400 |
| Oil capacity | 20 qts (18.9 L) |
| Operating RPM | 1500-2200 |
| Power (gross) | 185.1 hp (138.0 kW) |
| Power (net) | 174.3 hp (130.0 kW) |
| Pre-heating | ether |
| Rated RPM | 2200 |
| Starter | electric |
| Starter volts | 12 |
| Torque | 529.6 lb-ft (718.1 Nm) |
| Torque RPM | 1400 |
| Drawbar (tested) | 132.44 hp (98.8 kW) |
| Engine (gross) | 185.1 hp (138.0 kW) |
| Engine (net) | 174.3 hp (130.0 kW) |
| PTO (claimed) | 155 hp (115.6 kW) |
| PTO (tested) | 156.30 hp (116.6 kW) |
Transmission
| Clutch | hydraulic wet disc / hydraulic wet discs |
|---|---|
| Description | Clutchless shift-on-the-move power shift between all eight forward and four reverse gears. Inching pedal provided for hooking up implements and other precision work. |
| Gears | 16 forward and 6 reverse / 8 forward and 4 reverse |
| Oil capacity | 100 qts (94.6 L) / 80 qts (75.7 L) |
| Transmission | John Deere Quad-Range / John Deere PowerShift |
| Type | partial power shift / full power shift |
| Transmission type | 16-speed partial power shift / 8-speed full power shift |
| Transmission type | 16-speed partial power shift / 8-speed full power shift |
Mechanical
| Cab | Cab standard. |
|---|---|
| Description | Differential hydraulic wet disc brakes / Sound-Gard cab standard. |
| Differential lock | pedal-actuated hydraulic |
| Drive | 4x2 2WD |
| Final drives | planetary |
| Steering | hydrostatic power |
Capacity
| Fuel | 83 gal (314.2 L) |
|---|---|
| Hydraulic system | 16.5 gal (62.5 L) |
Hydraulics
| Capacity | 16.5 gal (62.5 L) |
|---|---|
| Pump flow | 23 gpm (87.1 lpm) |
| Type | closed center |
| Valves | 2 or 3 |
Hitch
| Control | position and draft control |
|---|---|
| Rear lift | 7328 lbs (3323 kg) |
| Rear Type | III/IIIN |
PTO
| Clutch | hydraulic wet disc |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 1000 (1.75) |
Electrical
| Batteries | 2 |
|---|---|
| Battery AH | 88 |
| Battery volts | 6 |
| Charging amps | 88 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Clearance (drawbar) | 14.8 inches (37 cm) |
|---|---|
| Clearance (front axle) | 26 inches (66 cm) |
| Clearance (rear axle) | 28 inches (71 cm) |
| Front tread | 58 to 100 inches (147 to 254 cm) |
| Ground clearance | 14.9 inches (37 cm) |
| Height (cab) | 117 inches (297 cm) |
| Length | 171 inches (434 cm) |
| Rack-and-pinion rear axle | 3.937 by 96 inches (99 by 2438 mm) / 3.937 by 108 inches (99 by 2743 mm) / 3.937 by 118 inches (99 by 2997 mm) |
| Rear tread | 60 to 131.5 inches (152 to 334 cm) |
| Shipping weight | 14350 lbs (6509 kg) |
| Wheelbase | 118.5 inches (300 cm) |
| Width | 96 inches (243 cm) |
| Front tire | 11.00-16 |
| Rear tire | 18.4-38 |
| Weight | 14350 to 15700 pounds |
| Wheelbase | 118.5 inches (300 cm) |
| Ag front | 11.00-16 / 10.00-16 |
| Ag rear | 18.4-38 / 24.5-32 |
| Optional tires (ag) | Front: 18.4-38. Rear: |
4640 Serial Number Location
| Description | Serial number plate on the rear of the 4640, above the PTO shaft. |
|---|
4640 Serial Numbers
| 1978 | 1000 |
|---|---|
| 1979 | 7422 |
| 1980 | 13860 |
| 1981 | 19459 |
| 1982 | 25729 |
| Description | FAQ: How to read a serial number table. |
John Deere 4640 Weight
| Ballasted | 18585 lbs (8430 kg) |
|---|---|
| Operating | 15700 lbs (duals) (7121 kg) |
| Shipping | 14350 lbs (6509 kg) |
John Deere 4640 attachments
| Description | front-end loader |
|---|
Nebraska Tractor Test 1264
| Description | Diesel 16-speed 2WDNovember 2 - 21, 1977Link: Nebraska Tractor Test 1264 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 10.0 gal/hour (37.9 l/hour) / 9.8 gal/hour (37.1 l/hour) |
| Max power | 130.33 hp (97.2 kW) |
| Max pull | 15,362 lbs (6968 kg) |
| Power at rated engine speed | 156.30 hp (116.6 kW) |
Nebraska Tractor Test 1358
| Description | Diesel 8-speed 2WDAugust 18 - 28, 1980Link: Nebraska Tractor Test 1358 file / PTO performance / Drawbar performance / Gear 4 used for power test. / Gear 2 used for pull test. |
|---|---|
| Fuel use | 9.9 gal/hour (37.5 l/hour) / 9.9 gal/hour (37.5 l/hour) / 9.8 gal/hour (37.1 l/hour) |
| Max power | 132.44 hp (98.8 kW) |
| Max pull | 15,989 lbs (7252 kg) |
| Power at rated engine speed | 155.96 hp (116.3 kW) |
| Power at rated PTO speed | 157.01 hp (117.1 kW) |
References
| Description | The New Iron Horses published in 1978, by John Deere / Tractors 90 to 180 HP published in 1979, by John Deere / Tractors 90, 110, 130, 155, 180 HP published in 1979, by John Deere / Row-Crop Tractors Product Information Handbook published in 1977, by John Deere / 40 Series Row-Crop Tractors Product Information Handbook published in 1982, by John Deere / Performance on the Leading Edge published in 1978, by John Deere / Performance on the Leading Edge published in 1978, by John Deere |
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Speeds
| Description | With 20.8-38 rear tires. / With 20.8-38 rear tires. |
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Tractor Tests
| Description | NTTL 1264: diesel 16-speed 2WD / NTTL 1358: diesel 8-speed 2WD |
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