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| info | |
| 1997 - 1999 8000/8000T Series, Agricultural Crawler tractor | |
| Next model: | John Deere 8410T |
| Series back: | John Deere 8300T |
| Production | |
| Manufacturer: | John Deere |
| Factory: | Waterloo, Iowa, USA |
| Variants | |
| 8400: | wheeled tractor |
| 8400T: | crawler tractor |
| Capacity | |
| Fuel: | 130 gal [492.1 L] |
| Hydraulic system: | 65 gal [246.0 L] |
| 3-Point Hitch | |
| Rear Type: | III/IIIN |
| Rear lift: | 15,650 lbs [7098 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 1000 |
| Dimensions & Tires | |
| Wheelbase: | 89 inches [226 cm] |
| Weight: | 25000 to 27330 pounds |
| Front tire: | tracks |
| Rear tire: | tracks |
| 8400T Serial Numbers | |
| Location: | Rear of tractor |
| John Deere 8400T Power | |
| PTO (claimed): | 225 hp [167.8 kW] |
| Drawbar (tested): | 195.75 hp [146.0 kW] |
| PTO (tested): | 255.16 hp [190.3 kW] |
| Mechanical | |
| Chassis: | crawler |
| Steering: | hydrostatic power |
| Brakes: | hydraulic wet disc |
| Cab: | CommandView Cab standard |
| Hydraulics | |
| Type: | pressure/flow compensated (PFC) |
| Capacity: | 65 gal [246.0 L] |
| Pressure: | 2900 psi [200.0 bar] |
| Valves: | 3 to 5 |
| Pump flow: | 30 gpm [113.6 lpm], 38 gpm [143.8 lpm] (optional) |
| Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 140 |
| Battery | |
| Number: | 2 |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 4.56x5.06 inches [116 x 129 mm] |
| Air cleaner: | two paper elements |
| Compression: | 16.5:1 |
| Rated RPM: | 2200 |
| Starter volts: | 12 |
| Oil capacity: | 22.7 qts [21.5 L] |
| Coolant capacity: | 35.9 qts [34.0 L] |
| Engine Detail | |
| John Deere, turbocharged intercooled, 6-cylinder, liquid-cooled, 496 ci [8.1 L] |
| info | |
| Next model: | John Deere 8410T |
| Series back: | John Deere 8300T |
| Transmission | |
| Type: | full powershift |
| Gears: | 16 forward and 4 reverse |
| Oil capacity: | 260 qts [246.1 L] |
| info | |
| Next model: | John Deere 8410T |
| Series back: | John Deere 8300T |
| Dimensions | |
| Weight (operating): | 25,000 lbs [11340 kg] |
| Weight (ballasted): | 27,330 lbs [12396 kg] |
| Wheelbase: | 89 inches [226 cm] |
| Length: | 207 inches [525 cm], 219.6 inches [557 cm] (with front weights) |
| Width: | 103.7 inches [263 cm] (minimum) |
| Height (cab): | 122.9 inches [312 cm] |
| Ground clearance: | 17.7 inches [44 cm] (drawbar), 21.7 inches [55 cm] (rear axle) |
| 4WD turn radius: | 0 feet [0.0 m] |
| John Deere 8400T Tires | |
| Ag front: | 24, 30-inch tracks |
| Ag rear: | 24, 30-inch tracks |