Production | |
| Manufacturer: | John Deere |
| Type: | Four-wheel Drive (4WD) tractor |
| Factory: | Waterloo, Iowa, USA |
| Total built: | 4,661 |
| Original price: | $26,400 (1975 ) |
John Deere 7520 Power | |
| Drawbar (claimed): | 160 hp 119.3 kW |
| PTO (claimed): | 175 hp 130.5 kW |
| Drawbar (tested): | 160.46 hp 119.7 kW |
| PTO (tested): | 175.82 hp 131.1 kW |
Mechanical | |
| Chassis: | 4x4 articulated 4WD |
| Steering: | hydrostatic power |
| Brakes: | integral hydraulic wet disc |
| Cab: | Cab standard. Air-conditioning optional. |
| Transmissions: | 8-speed partially synchronized |
| 16-speed partially synchronized | |
Capacity | |
| Fuel: | 156 gal 590.5 L *Total capacity of wo 78-gallon fuel tanks. |
| Hydraulic system: | 19 gal 71.9 L |
Hydraulics | |
| Type: | closed center |
| Capacity: | 19 gal 71.9 L |
| Pressure: | 2250 psi 155.1 bar |
| Pump flow: | 21 gpm 79.5 lpm |
Power Take-off (PTO) | |
| Rear PTO: | transmission |
| Rear RPM: | 1000 |
7520 Serial Numbers | |
| Location: | Serial number plate on the rear of the tractor, above the PTO. |
| 1972: | 1000 |
| 1973: | 1615 |
| 1974: | 3054 |
| 1975: | 4999 |
| Final: | 5705 |
Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 55 |
| 72*Alternator with air-conditioned cab. | |
| Charging volts: | 12 |
| Batteries: | 2 |
| Battery volts: | 6 |
| Battery AH: | 204 |
Engine Detail | |
| John Deere | |
| turbocharged intercooled diesel | |
| 6-cylinder | |
| liquid-cooled inline | |
| Displacement: | 531 ci 8.7 L |
| Bore/Stroke: | 4.75x5.00 inches 121 x 127 mm |
| Fuel system: | direct injection |
| Air cleaner: | aspirator and dual paper elements |
| Compression: | 15.4:1 |
| Rated RPM: | 2100 |
| Operating RPM: | 1500-2100 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Oil capacity: | 26 qts 24.6 L |
| Coolant capacity: | 40 qts 37.9 L |
| Intake valve clearance: | 0.018 inches 0.457 mm |
| Exhaust valve clearance: | 0.028 inches 0.711 mm |
Dimensions | |
| Wheelbase: | 120 inches 304 cm |
| Length: | 220 inches 558 cm |
| Width: | 95.9 inches 243 cm |
| Height (cab): | 123 inches 312 cm |
| 131 inches 332 cm *With air-conditioning unit. | |
| Shiping weight: | 16790 lbs 7615 kg |
| Operating weight: | 22320 lbs 10124 kg |