John Deere 620: all source data
All 94 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 | 20,848 |
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| (no label) | Original price was $3,000 in 1956 |
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Engine| (no label) | John Deere 5.0L 2-cyl gasoline |
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| (no label) | John Deere 5.0L 2-cyl all-fuel |
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| (no label) | John Deere 5.0L 2-cyl LP gas |
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| Fuel tank | 20.5 gal (all-fuel) | 77.6 L |
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| Fuel tank | 22.25 gal (gasoline) | 84.2 L |
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| Fuel tank | 33 gal (LP gas) | 124.9 L |
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| Aux. fuel | 1 gal | 3.8 L |
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Transmission| (no label) | 6-speed unsynchronized gear |
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Power| Drawbar (claimed) | 44 hp | 32.8 kW |
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| PTO (claimed) | 48 hp | 35.8 kW |
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| Drawbar (tested) | 44.81 hp | 33.4 kW |
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| Belt (tested) | 49.19 hp | 36.7 kW |
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Mechanical| (no label) | Two-wheel drive |
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| Steering | power assist |
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| (no label) | Differential mechanical contracting band brakes |
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| (no label) | Open operator station. |
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Hydraulics| Pressure | 1200 psi | 82.7 bar |
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| Valves | 1 or 2 |
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| Pump flow | 8.9 gpm | 33.7 lpm |
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Dimensions| Wheelbase | 90 inches | 228 cm |
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| Weight | 5858 to 6800 pounds |
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| Front tire | 6.00-16 |
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| Rear tire | 12.4-38 |
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Serial location| (no label) | Serial number plate on the right side of the 620 tractor frame, below the belt 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 5.0L 2-cyl gasoline |
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| (no label) | John Deere 5.0L 2-cyl all-fuel |
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| (no label) | John Deere 5.0L 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 | 302.9 ci | 5.0 L |
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| Bore/Stroke | 5.50x6.375 inches | 140 x 162 mm |
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| Rated RPM | 1125 |
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| Firing order | 1-2 |
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| Starter volts | 12 |
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| Oil capacity | 8 qts | 7.6 L |
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| Coolant capacity (Coolant) | 26 qts | 24.6 L |
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| Coolant capacity (Coolant) | 28 qts (orchard) | 26.5 L |
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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 | 302.9 ci | 5.0 L |
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| Bore/Stroke | 5.50x6.375 inches | 140 x 162 mm |
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| Air cleaner | oil bath |
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| Compression | 4.78:1 |
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| Rated RPM | 1125 |
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| Firing order | 1-2 |
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| Starter volts | 12 |
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| Oil capacity | 8 qts | 7.6 L |
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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 | 302.9 ci | 5.0 L |
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| Bore/Stroke | 5.50x6.375 inches | 140 x 162 mm |
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| Air cleaner | oil bath |
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| Compression | 8.1:1 |
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| Rated RPM | 1125 |
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| Firing order | 1-2 |
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| Starter volts | 12 |
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| Oil capacity | 8 qts | 7.6 L |
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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 | mechanical dry disc |
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| Oil capacity | 24 qts | 22.7 L |
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Dimensions
Tires| Ag front | 6.00-16 |
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| Ag front | 7.50-20 (high-crop) |
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| Ag rear | 12.4-38 |
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| Ag rear | 13-30 (standard) |
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Dimensions| Wheelbase | 90 inches | 228 cm |
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| Length | 135.25 inches | 343 cm |
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| High-crop Length (High-crop) | 147.1875 inches | 373 cm |
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| Width | 86.625 inches | 220 cm |
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| High-crop Width (High-crop) | 74 inches | 187 cm |
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| Height | 88.125 inches | 223 cm |
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| High-crop Height (High-crop) | 96.75 inches | 245 cm |
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| Rear tread | 58 to 88 inches | 147 to 223 cm |
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| Rear tread | 58 to 104 inches (long axle) | 147 to 264 cm |
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Weight| Shipping | 5,858 lbs | 2657 kg |
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| Operating | 6,800 lbs | 3084 kg |
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| Ballasted | 8,769 lbs | 3977 kg |
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