John Deere 7520 (1972-1975)

John Deere 7520 (1972-1975)The John Deere 7520 is a 2WD four-wheel drive tractor manufactured by John Deere in Waterloo, Iowa, USA from 1972 to 1975. The JD 7520 is equipped with a 8.7 L (531.0 cu·in) six-cylinder diesel engine and one of two transmissions: a partially synchronized transmission with 8 forward and 2 reverse gears or a partially synchronized transmission with 16 forward and 4 reverse gears.

The JD 7520 four-wheel drive used the John Deere engine. It is a 8.7 L, 8,701 cm2, (531.0 cu·in) six-cylinder turbocharged intercooled diesel engine with 121.0 mm (4.76 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 15.4:1. This engine produced 177.5 PS (130.5 kW; 175 HP) at 2,100 rpm of output power.

The John Deere 7520 is equipped with hydrostatic power steering, integral hydraulic wet disc brakes, cab, and 590.5 liters (156 US gal.; 129.9 Imp. gal) fuel tank.

John Deere 7520 Specifications

General Specifications
Model John Deere 7520
Length 5,580 mm (219.7 in)
Width 2,430 mm (95.7 in)
Height 3,120 mm (122.8 in)
Wheel base 3,040 mm (119.7 in)
Weight (shipping) 7,615 kg (16,800 lbs)
Fuel tank capacity 590.5 liters (156 US gal.; 129.9 Imp. gal)
Battery Two 6V, 204 Ah
Cabin type Cab
Engine
Engine model John Deere
Engine type Four-stroke, liquid-cooled, inline
Cylinders 6
Fuel type Diesel
Displacement 8.7 L, 8,701 cm2, (531.0 cu·in)
Bore and stroke 121.0 mm X 127.0 mm (4.76 in X 5 in)
Compression ratio 15.4:1
Horsepower 177.5 PS (130.5 kW; 175.0 HP) at 2,100 rpm
Starter Electric
Oil capacity: 24.6 L (26 US. qt, 21.6 Imp. qt.)
Coolant capacity: 37.9 L (40 US. qt, 33.3 Imp. qt.)
Transmission and chassis
Chassis 4×4 articulated 4WD
Steering type Hydrostatic power
Brakes Integral hydraulic wet disc
Transmission model Syncro-Range
Transmission type Partially synchronized
Gears 8 forward and 2 reverse
Speed Forward: 31.3 kmh (19.5 mph) Reverse: 11.0 kmh (6.8 mph)
Transmission oil capacity 71.9 L (19 US. gal, 15.8 Imp. gal.)
Transmission model Syncro-Range Hi-Lo
Transmission type Partially synchronized
Gears 16 forward and 4 reverse
Speed Forward: 36.0 kmh (22.4 mph) Reverse: 12.6 kmh (7.8 mph)
Transmission oil capacity 71.9 L (19 US. gal, 15.8 Imp. gal.)
Tires
Front tires Ag: 18.4-34, 23.1-30
Rear tires Ag: 18.4-34, 23.1-30
PTO (Power take-off shaft)
Rear PTO type Transmission
Rear PTO speed 1,000 rpm
Hydraulic system
Hydraulic type Closed center
Hydraulic capacity 71.9 L (19 US. gal, 15.8 Imp. gal.)
Pressure 2250 psi (155.1 bar)
Pump flow 21.0 gpm (79.5 lpm)