| 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
|
| Photos |
| | John Deere 8640 photos... |
| 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
|
| Dimensions & Tires |
| Wheelbase: | 125 inches
317 cm
|
| Weight: | 28,270 lbs
12823 kg
|
| Front tire: | 18.4-34
|
| Rear tire: | 18.4-34
|
| Full dimensions and tires ... |
| 8640 Serial Numbers |
| Location: | On the tractor transmission case, rear.
|
photo of 8640 serial number
| | 1979: | 1500
|
| 1980: | 3198
|
| 1981: | 5704
|
| 1982: | 7960
|
how to read serial numbers...
|
| Electrical |
| Ground: | negative
|
| Charging system: | alternator
|
| Charging amps: | 90
|
| Batteries: | 2
|
| Battery CCA: | 975
|
| Battery volts: | 6
|
|
