John Deere 7520: all source data
All 76 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) | Four-wheel Drive (4WD) tractor |
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| (no label) | Built in Waterloo, Iowa, USA |
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| Total built | 4,661 |
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| (no label) | Original price was $26,400 in 1975 |
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Engine| (no label) | John Deere 8.7L 6-cyl diesel |
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Transmission| (no label) | 8-speed partially synchronized |
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| (no label) | 16-speed partially synchronized |
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Power| Drawbar (claimed) | 160 hp | 119.3 kW |
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| PTO (claimed) | 175 hp | 130.5 kW |
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| Drawbar (tested) | 160.46 hp | 119.7 kW |
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| PTO (tested) | 175.82 hp | 131.1 kW |
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Mechanical| (no label) | Four-wheel drive |
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| Steering | hydrostatic power |
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| (no label) | Integral hydraulic wet disc brakes |
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| (no label) | Cab standard. Air-conditioning optional. |
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Capacity| Fuel | 156 gal | 590.5 L |
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| Hydraulic system | 19 gal | 71.9 L |
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Hydraulics| Type | closed center |
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| Capacity | 19 gal | 71.9 L |
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| Pressure | 2250 psi | 155.1 bar |
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| Pump flow | 21 gpm | 79.5 lpm |
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Pto| Rear PTO | transmission |
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| Rear PTO Type | 1000 |
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Dimensions| Wheelbase | 120 inches | 304 cm |
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| Weight | 16790 to 22320 pounds |
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| Front tire | 18.4-34 |
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| Rear tire | 18.4-34 |
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Serial location| (no label) | Serial number plate on the rear of the tractor, above the PTO. |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 55 |
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| Charging amps | 72 |
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| Charging volts | 12 |
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| Batteries | 2 |
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| Battery volts | 6 |
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| Battery AH | 204 |
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Engine
Engine detail| (no label) | John Deere |
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| (no label) | turbocharged intercooled diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled inline |
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| Displacement | 531 ci | 8.7 L |
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| Bore/Stroke | 4.75x5.00 inches | 121 x 127 mm |
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| Fuel system | direct injection |
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| Air cleaner | aspirator and dual paper elements |
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| Compression | 15.4:1 |
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| Rated RPM | 2100 |
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| Operating RPM | 1500-2100 |
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| Firing order | 1-5-3-6-2-4 |
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| Starter volts | 12 |
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| Oil capacity | 26 qts | 24.6 L |
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| Coolant capacity (Coolant) | 40 qts | 37.9 L |
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| Intake valve clearance | 0.018 inches | 0.457 mm |
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| Exhaust valve clearance | 0.028 inches | 0.711 mm |
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Transmission
Transmission options| (no label) | 8-speed partially synchronized |
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| (no label) | 16-speed partially synchronized |
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Transmission| Transmission | Syncro-Range |
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| Type | partially synchronized |
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| Gears | 8 forward and 2 reverse |
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| Oil capacity | 76 qts | 71.9 L |
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| Transmission | Syncro-Range Hi-Lo |
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| Type | partially synchronized |
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| Gears | 16 forward and 4 reverse |
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| Oil capacity | 76 qts | 71.9 L |
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| (no label) | Eight-speed Deere Synchro-Range transmission with added high and low gears. |
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Dimensions
Tires| Ag front | 18.4-34 |
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| Ag rear | 18.4-34 |
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| Ag front | 23.1-30 |
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| Ag rear | 23.1-30 |
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Dimensions| Wheelbase | 120 inches | 304 cm |
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| Length | 220 inches | 558 cm |
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| Width | 95.9 inches | 243 cm |
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| Height (cab) | 123 inches | 312 cm |
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| Height (cab) | 131 inches | 332 cm |
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| Shipping weight | 16790 lbs | 7615 kg |
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| Operating weight | 22320 lbs | 10124 kg |
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