Deere 7520 tractor specifications

1972 - 1975

1972 - 1975 Four-wheel Drive (4WD) tractor

Series:

Series:7020 ← 75208630 ↓

1971 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020	→ 7520
	8430 ↓

Production

Production
Manufacturer:	John Deere
Type:	Four-wheel Drive (4WD) tractor
Factory:	Waterloo, Iowa, USA
Total built:	2,586
Original price:	$22,000 (1975 )

John Deere 7020 Power

John Deere 7020 Power
Drawbar (tested):	127.72 hp 95.2 kW
PTO (tested):	146.17 hp 109.0 kW
power test details ...

John Deere 7020 Engine

John Deere 7020 Engine
John Deere 6.6L 6-cyl diesel
Engine details ...

Mechanical

Mechanical
Chassis:	4x4 articulated 4WD
Steering:	hydrostatic power
Cab:	Cab standard
Transmissions:	8-speed partially synchronized
	16-speed partially synchronized
Transmission details ...

Capacity

Capacity
Fuel:	156 gal 590.5 L
Hydraulic system:	22 gal 83.3 L

Hydraulics

Hydraulics
Type:	closed center
Capacity:	22 gal 83.3 L
Valves:	2 (early)
	3 (late)
Pump flow:	26 gpm 98.4 lpm

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	transmission
Rear RPM:	1000

Dimensions & Tires

Dimensions & Tires
Wheelbase:	120 inches 304 cm
Weight:	18,495 lbs 8389 kg
Front tire:	18.4-34S
Rear tire:	18.4-34S
Full dimensions and tires ...

7020 Serial Numbers

7020 Serial Numbers
Location:	Serial number plate on the rear of the tractor, above the PTO.
photo of 7020 serial number
1971:	773R001000
1972:	773R002007
1973:	773R002548
1974:	773R003122
1975:	773R003542
Final:	773R003708
how to read serial numbers...

Electrical

Electrical
Ground:	negative
Charging system:	Motorola alternator*Early
	Delco alternator*Late
Batteries:	2
Battery volts:	6

Production

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

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
power test details ...

1972 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020 ←	7520
		8630 ↓

Nebraska Tractor Test 1101

Nebraska Tractor Test 1101
Diesel 16-speed 4WD May 25 - June 6, 1972 Link: Nebraska Tractor Test 1101 file
PTO performance
Power at rated engine speed:	175.82 hp 131.1 kW
Fuel use:	11.6 gal/hour 43.9 l/hour
Drawbar performance
Max power:	160.46 hp 119.7 kW
Fuel use:	11.7 gal/hour 44.3 l/hour
Gear 4-Lo used for power test.
Max pull:	22,517 lbs 10213 kg
Gear 1-Hi used for pull test.

John Deere 7520 Engine

John Deere 7520 Engine John Deere 8.7L 6-cyl diesel Engine details ...

1972 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020 ←	7520
		8630 ↓

Engine Detail

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

Mechanical

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
Transmission details ...

1972 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020 ←	7520
		8630 ↓

Transmissions overview

Transmissions overview
8-speed partially synchronized
16-speed partially synchronized

Transmission

Transmission
Transmission:	Syncro-Range
Type:	partially synchronized
Gears:	8 forward and 2 reverse
Oil capacity:	76 qts 71.9 L

Speeds

Speeds

Transmission

Transmission
Transmission:	Syncro-Range Hi-Lo
Type:	partially synchronized
Gears:	16 forward and 4 reverse
Oil capacity:	76 qts 71.9 L
Eight-speed Deere Synchro-Range transmission with added high and low gears.

Speeds

Speeds

Capacity

Capacity Fuel:156 gal
590.5 L *Total capacity of wo 78-gallon fuel tanks.
Hydraulic system:19 gal
71.9 L

Hydraulics

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)

Power Take-off (PTO) Rear PTO:transmission
Rear RPM:1000

Dimensions & Tires

Dimensions & Tires Wheelbase:120 inches
304 cm
Weight:16790 to 22320 pounds
Front tire:18.4-34
Rear tire:18.4-34
Full dimensions and tires ...

1972 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020 ←	7520
		8630 ↓

John Deere 7520 Tires

John Deere 7520 Tires
Ag front:	18.4-34
Ag rear:	18.4-34
Ag front:	23.1-30
Ag rear:	23.1-30

Dimensions

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

7520 Serial Numbers

7520 Serial Numbers Location:Serial number plate on the rear of the tractor, above the PTO.
photo of 7520 serial number
1972:1000
1973:1615
1974:3054
1975:4999
Final:5705

how to read serial numbers...

Electrical

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