John Deere 520: all source data
All 90 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | John Deere |
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| (no label) | Row-Crop tractor |
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| (no label) | Built in Waterloo, Iowa, USA |
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| Total built | 13,048 (total) |
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| Total built | 12,040 (gasoline) |
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| Total built | 764 (LP-gas) |
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| Total built | 244 (all-fuel) |
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| Original price | $2,300 (1958) |
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Engine| (no label) | John Deere 3.1L 2-cyl gasoline |
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| (no label) | John Deere 3.1L 2-cyl all-fuel |
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| (no label) | John Deere 3.1L 2-cyl LP gas |
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Transmission| (no label) | 6-speed unsynchronized gear |
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Power| Plows | 3 |
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| Drawbar (tested) | 33.30 hp | 24.8 kW |
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| Belt (tested) | 37.52 hp | 28.0 kW |
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Mechanical| (no label) | Two-wheel drive |
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| Steering | manual |
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| Steering | power optional |
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| (no label) | Differential mechanical expanding shoe brakes |
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| (no label) | Open operator station. |
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Capacity| Fuel | 15.5 gal (all-fuel) | 58.7 L |
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| Fuel | 18 gal (gasoline) | 68.1 L |
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| Fuel | 33 gal (LP gas) | 124.9 L |
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| Aux. fuel | 2 gal | 7.6 L |
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| Hydraulic system | 2.5 gal | 9.5 L |
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Hydraulics| Capacity | 2.5 gal | 9.5 L |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 540 |
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Dimensions| Wheelbase | 90 inches | 228 cm |
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| Weight | 4,960 lbs | 2249 kg |
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| Front tire | 5.50-16 |
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| Rear tire | 12.4-36 |
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Serial location| (no label) | Right side of tractor frame near pulley |
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Electrical| Ground | positive |
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| Batteries | 2 |
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| Battery volts | 6 |
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Engine
Engine options| (no label) | John Deere 3.1L 2-cyl gasoline |
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| (no label) | John Deere 3.1L 2-cyl all-fuel |
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| (no label) | John Deere 3.1L 2-cyl LP gas |
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Engine detail| (no label) | John Deere |
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| (no label) | gasoline |
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| (no label) | 2-cylinder 4-valve |
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| (no label) | liquid-cooled |
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| Displacement | 189.8 ci | 3.1 L |
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| Bore/Stroke | 4.6875x5.50 inches | 119 x 140 mm |
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| Air cleaner | oil bath |
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| Compression | 7:1 |
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| Rated RPM | 1325 |
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| Firing order | 1-2 |
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| Starter volts | 12 |
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| Oil capacity | 7 qts | 6.6 L |
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| Coolant capacity (Coolant) | 18 qts | 17.0 L |
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| Sparkplug gap | 0.030 inches | 0.762 mm |
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| Point gap | 0.022 inches | 0.559 mm |
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| (no label) | John Deere |
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| (no label) | all-fuel |
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| (no label) | 2-cylinder 4-valve |
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| (no label) | liquid-cooled |
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| Displacement | 189.8 ci | 3.1 L |
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| Bore/Stroke | 4.6875x5.50 inches | 119 x 140 mm |
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| Air cleaner | oil bath |
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| Rated RPM | 1325 |
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| Firing order | 1-2 |
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| Starter volts | 12 |
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| Oil capacity | 7 qts | 6.6 L |
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| Sparkplug gap | 0.030 inches | 0.762 mm |
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| Point gap | 0.022 inches | 0.559 mm |
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| (no label) | John Deere |
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| (no label) | LP gas |
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| (no label) | 2-cylinder 4-valve |
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| (no label) | liquid-cooled |
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| Displacement | 189.8 ci | 3.1 L |
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| Bore/Stroke | 4.6875x5.50 inches | 119 x 140 mm |
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| Rated RPM | 1325 |
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| Firing order | 1-2 |
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| Starter volts | 12 |
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Transmission
Transmission| Manufacturer | John Deere |
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| Type | unsynchronized gear |
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| Gears | 6 forward and 1 reverse |
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| Clutch | dry disc |
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Dimensions
Tires| Ag front | 5.50-16 |
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| Ag rear | 12.4-36 |
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Dimensions| Wheelbase | 90 inches | 228 cm |
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| Length | 132.75 inches | 337 cm |
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| Width | 86.625 inches | 220 cm |
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| Height | 83.325 inches | 211 cm |
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| Weight | 4,960 lbs | 2249 kg |
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| Ballasted weight | 6,600 lbs | 2993 kg |
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| Ground clearance | 24.75 inches | 62 cm |
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