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| info | |
| 1977 - 1984 84 Series, Utility tractor | |
| Previous model: | International Harvester 574 |
| Next model: | CaseIH 685 |
| Series next: | International Harvester 784 |
| Series back: | International Harvester Hydro 84 |
| Production | |
| Manufacturer: | International Harvester |
| Factory: | Doncaster, England |
| Original price (USD), $21,100 (1984 ), | |
| Capacity | |
| Fuel: | 20 gal [75.7 L] |
| Hydraulic system: | 9 gal [34.1 L] |
| 3-Point Hitch | |
| Rear Type: | II |
| Control: | position and draft control |
| Rear lift: | 3600 lbs [1632 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Clutch: | hydraulic wet disc |
| Rear RPM: | 540 |
| Dimensions & Tires | |
| Utility Wheelbase: | 88 inches [223 cm] |
| Row-crop Wheelbase: | 84.5 inches [214 cm] |
| 4WD Wheelbase: | 85.2 inches [216 cm] |
| Low-profile Wheelbase: | 83.75 inches [212 cm] |
| Weight: | 5620 to 6765 pounds |
| Front tire: | 7.50-16 |
| Rear tire: | 16.9-30 |
| 684 Serial Numbers | |
| Location: | Front axle support on right side of tractor. |
| International Harvester 684 Power | |
| Engine: | 69 hp [51.5 kW] |
| Drawbar (claimed): | 55.9 hp [41.7 kW] |
| PTO (claimed): | 62.5 hp [46.6 kW] |
| Plows: | 4 |
| Drawbar (tested): | 54.56 hp [40.7 kW] |
| PTO (tested): | 62.52 hp [46.6 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD, 4x4 MFWD 4WD |
| Steering: | power |
| Brakes: | independent hydraulic wet disc |
| Cab: | ROPS canopy or cab optional |
| Hydraulics | |
| Type: | open center |
| Capacity: | 9 gal [34.1 L] |
| Valves: | 1 or 2 |
| Pump flow: | 13 gpm [49.2 lpm], 15.4 gpm [58.3 lpm] (optional) |
| Electrical | |
| Ground: | negative |
| Charging amps: | 45 |
| Battery | |
| Number: | 1 |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 3.875x5.06 inches [98 x 129 mm] |
| Power: | 69 hp [51.5 kW] |
| Air cleaner: | dry |
| Rated RPM: | 2400 |
| Starter volts: | 12 |
| Oil capacity: | 8.8 qts [8.3 L] |
| Coolant capacity: | 14.4 qts [13.6 L] |
| Engine Detail | |
| International Harvester D-239, diesel, 4-cylinder, liquid-cooled, 239 ci [3.9 L] |
| info | |
| Speeds: | With 16.9-30 rear tires. |
| Transmission | |
| Type: | syncromesh |
| Gears: | 8 forward and 4 reverse |
| Clutch: | dry disc |
| Oil capacity: | 36 qts [34.1 L] |
| Four synchronized gears in high, low, and reverse ranges. | |
| info | |
| Previous model: | International Harvester 574 |
| Next model: | CaseIH 685 |
| Series next: | International Harvester 784 |
| Series back: | International Harvester Hydro 84 |
| Dimensions | |
| Utility Weight (shipping): | 5720 lbs [2594 kg] |
| Row-crop Weight (shipping): | 5970 lbs [2707 kg] |
| 4WD Weight (shipping): | 6765 lbs [3068 kg] |
| Low-profile Weight (shipping): | 5620 lbs [2549 kg] |
| Weight (ballasted): | 9660 lbs [4381 kg] |
| Utility Wheelbase: | 88 inches [223 cm] |
| Row-crop Wheelbase: | 84.5 inches [214 cm] |
| 4WD Wheelbase: | 85.2 inches [216 cm] |
| Low-profile Wheelbase: | 83.75 inches [212 cm] |
| Utility Length: | 142 inches [360 cm] |
| Row-crop Length: | 139 inches [353 cm] |
| 4WD Length: | 147.2 inches [373 cm] |
| Low-profile Length: | 142 inches [360 cm] |
| Utility Width: | 74 inches [187 cm] |
| Row-crop Width: | 75 inches [190 cm] |
| 4WD Width: | 74 inches [187 cm] |
| Low-profile Width: | 78.5 inches [199 cm] |
| Utility Height (steering wheel): | 63 inches [160 cm] |
| Row-crop Height (steering wheel): | 63 inches [160 cm] |
| 4WD Height (steering wheel): | 63 inches [160 cm] |
| Low-profile Height (steering wheel): | 56.5 inches [143 cm] |
| Height (ROPS): | 100 inches [254 cm] |
| Utility Ground clearance: | 17.75 inches [45 cm] |
| Row-crop Ground clearance: | 17.75 inches [45 cm] |
| 4WD Ground clearance: | 17.75 inches [45 cm] |
| Low-profile Ground clearance: | 10.7 inches [27 cm] |
| 2WD turn radius: | 12.75 feet [3.9 m], 11 feet [3.4 m] (with brakes) |
| International Harvester 684 Tires | |
| Ag front: | 7.50-16 |
| Ag rear: | 16.9-30 |