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| info | |
| 1978 - 1982 Iron Horses Series, Row-Crop tractor | |
| Next model: | John Deere 4650 |
| Series next: | John Deere 4840 |
| Series back: | John Deere 4440 |
| Production | |
| Manufacturer: | John Deere |
| Factory: | Waterloo, Iowa, USA |
| Original price (USD), $51.500 (1982 ), | |
| Capacity | |
| Fuel: | 83 gal [314.2 L] |
| Hydraulic system: | 16.5 gal [62.5 L] |
| 3-Point Hitch | |
| Rear Type: | III/IIIN |
| Rear lift: | 7328 lbs [3323 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 1000 (1.75) |
| Dimensions & Tires | |
| Wheelbase: | 118.5 inches [300 cm] |
| Weight: | 14350 to 15700 pounds |
| Front tire: | 11.00-16 |
| Rear tire: | 18.4-38 |
| 4640 Serial Numbers | |
| Location: | Rear of transmission case |
| John Deere 4640 Power | |
| PTO (claimed): | 155 hp [115.6 kW] |
| Drawbar (tested): | 132.44 hp [98.8 kW] |
| PTO (tested): | 156.30 hp [116.6 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD, 4x4 HFWD 4WD |
| Differential lock: | pedal-actuated hydraulic |
| Steering: | hydrostatic power |
| Brakes: | differential hydraulic wet disc |
| Cab: | Sound-Gard cab standard. |
| Hydraulics | |
| Type: | closed center |
| Capacity: | 16.5 gal [62.5 L] |
| Valves: | 2 or 3 |
| Pump flow: | 23 gpm [87.1 lpm] |
| Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Battery | |
| Number: | 2 |
| Volts: | 6 |
| info | |
| Bore/Stroke: | 4.5625x4.75 inches [116 x 121 mm] |
| Pre-heating: | ether |
| Compression: | 15.5:1 |
| Rated RPM: | 2200 |
| Idle RPM: | 800-2400 |
| Operating RPM: | 1500-2200 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Oil capacity: | 20 qts [18.9 L] |
| Coolant capacity: | 38 qts [36.0 L] |
| Engine Detail | |
| John Deere, turbocharged intercooled diesel, 6-cylinder, liquid-cooled, 466 ci [7.6 L] |
| info | |
| Next model: | John Deere 4650 |
| Series next: | John Deere 4840 |
| Series back: | John Deere 4440 |
| Transmission | |
| Transmission: | John Deere Quad-Range |
| Type: | partial power shift |
| Gears: | 16 forward and 6 reverse |
| Four gears (1-4) in four ranges (A-D). Power shift between pairs 1-2 and 3-4 in each range, with synchronized shift between 2-3. Two reverses in ranges A-C. Tractor must be stopped, and clutch used, to shift ranges. Power shift is provided hy a hydraulically-controlled planetary that provides an under-drive to each gear. | |
| info | |
| Next model: | John Deere 4650 |
| Series next: | John Deere 4840 |
| Series back: | John Deere 4440 |
| Dimensions | |
| Weight (shipping): | 14350 lbs [6509 kg] |
| Weight (operating): | 15700 lbs [7121 kg] (duals) |
| Weight (ballasted): | 18585 lbs [8430 kg] |
| Wheelbase: | 118.5 inches [300 cm] |
| Length: | 171 inches [434 cm] |
| Width: | 96 inches [243 cm], 108 inches [274 cm] (long axle), 118 inches [299 cm] (long axle) |
| Height (cab): | 117 inches [297 cm] |
| Ground clearance: | 14.9 inches [37 cm] |
| Clearance (front axle): | 26 inches [66 cm] |
| Clearance (rear axle): | 28 inches [71 cm] |
| Rear axle: | Rack-and-pinion: 3.937 by 96 inches [99x2438 mm] Rack-and-pinion: 3.937 by 108 inches [99x2743 mm] Rack-and-pinion: 3.937 by 118 inches [99x2997 mm] |
| Front tread: | 58 to 100 inches [147 to 254 cm] |
| Rear tread: | 60 to 131.5 inches [152 to 334 cm] |
| 2WD turn radius: | 14.7 feet [4.5 m], 13.4 feet [4.1 m] (with brakes) |
| John Deere 4640 Tires | |
| Ag front: | 10.00-16, 14L-16.1, 16.5L-16.1, 9.50-20 |
| Ag rear: | 24.5-32, 30.5-32, 20.8-38, 18.4-42 |
| info | |
| Next model: | John Deere 4650 |
| Series next: | John Deere 4840 |
| Series back: | John Deere 4440 |
| Loader | |
| Loader type: | John Deere 168 |
| Weight: | 1871 lbs [848 kg] |
| Height (to pin): | 151 inches [383 cm] |
| Clearance, dumped bucket: | 132 inches [335 cm] |
| Dump reach: | 32 inches [81 cm] |
| Dump angle: | 37 |
| Clearance, level bucket: | 151 inches [383 cm] |
| Rollback angle: | 12 |
| Breakout force (lift): | 5000 lbs [2268 kg] |
| Lift to full height (at pin): | 3800 lbs [1723 kg] |
| Bucket capacity: | 0.9 cu yd [0.7 cu m] |
| Bucket width: | 96 inches [243 cm] |