John Deere 8640
Contents:
Production | |
| Manufacturer: | John Deere |
| Type: | Four-wheel Drive (4WD) tractor |
| Factory: | Waterloo, Iowa, USA |
| Original price: | $80,000 (1982 ) |
John Deere 8640 Power | |
| Engine: | 275 hp 205.1 kW |
| PTO (claimed): | 225 hp 167.8 kW |
| Drawbar (tested): | 203.34 hp 151.6 kW |
| PTO (tested): | 228.75 hp 170.6 kW |
Mechanical | |
| Chassis: | 4x4 articulated 4WD |
| Differential lock: | hydraulic front and rear |
| Steering: | articulated power |
| Brakes: | hydraulic wet disc |
| Cab: | Cab standard |
| Transmission: | 16-speed partial power shift |
Capacity | |
| Fuel: | 214 gal 810.0 L |
| Hydraulic system: | 41 gal 155.2 L |
Hydraulics | |
| Type: | closed center |
| Capacity: | 41 gal 155.2 L |
| Valves: | 2 |
| Pump flow: | 33 gpm 124.9 lpm |
Tractor hitch | |
| Rear Type: | III/IIIN |
| Rear lift: | 8545 lbs 3876 kg |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 1000 |
| Engine RPM: | 1000@2100 |
8640 Serial Numbers | |
| Location: | On the tractor transmission case, rear. |
| 1979: | 1500 |
| 1980: | 3198 |
| 1981: | 5704 |
| 1982: | 7960 |
Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 90 |
| Batteries: | 2 |
| Battery CCA: | 975 |
| Battery volts: | 6 |
Engine Detail | |
| John Deere | |
| turbocharged diesel | |
| 6-cylinder | |
| liquid-cooled | |
| Displacement: | 619 ci 10.1 L |
| Bore/Stroke: | 5.12x5.00 inches 130 x 127 mm |
| Power: | 275 hp 205.1 kW |
| Air cleaner: | dual paper elements |
| Compression: | 15.2:1 |
| Rated RPM: | 2100 |
| Idle RPM: | 800-2300 |
| Operating RPM: | 1500-2100 |
| Starter volts: | 12 |
| Oil capacity: | 26 qts 24.6 L |
| Coolant capacity: | 48 qts 45.4 L |
Transmission | |
| Transmission: | John Deere Quad-Range |
| Type: | partial power shift |
| Gears: | 16 forward and 6 reverse |
| Clutch: | hydraulic wet disc |
| Oil capacity: | 164 qts 155.2 L |
| Four gears (1-4) in four ranges (A-D). Tractor must be stopped to select range. Power shift between gears 1-2 and 3-4 within range. | |
Dimensions | |
| Wheelbase: | 125 inches 317 cm |
| Length: | 223.5 inches 567 cm |
| Operating weight: | 28,270 lbs 12823 kg |
| Ground clearance: | 18.4 inches 46 cm |
| Front axle: | Rack-and-pinion: 3.937 by 95.8 inches 99 by 2433 mm |
| Front axle: | Rack-and-pinion: 3.937 by 118.4 inches 99 by 3007 mm |
| Rear axle: | Rack-and-pinion: 3.937 by 95.8 inches 99 by 2433 mm |
| Rear axle: | Rack-and-pinion: 3.937 by 118.4 inches 99 by 3007 mm |
| Front tread: | 63 to 130 inches 160 to 330 cm |
| Rear tread: | 63 to 130 inches 160 to 330 cm |
