John Deere 7020 tractor specifications

1971 - 1975

1971 - 1975 Four-wheel Drive (4WD) tractor

Series:

Series:7020 → 75208430 ↓

1972 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020 ←	7520
		8630 ↓

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 ...

John Deere 7520 Engine

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

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 ...

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 ...

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

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 ...

1971 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020	→ 7520
	8430 ↓

Nebraska Tractor Test 1063

Nebraska Tractor Test 1063
Diesel 16-speed 4WD April 20 - May 4, 1971 Link: Nebraska Tractor Test 1063 file
PTO performance
Power at rated engine speed:	146.17 hp 109.0 kW
Fuel use:	10.2 gal/hour 38.6 l/hour
Drawbar performance
Max power:	127.72 hp 95.2 kW
Fuel use:	10.0 gal/hour 37.9 l/hour
Gear 4-Lo used for power test.
Max pull:	18,726 lbs 8494 kg
Gear 1-Hi used for pull test.

John Deere 7020 Engine

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

1971 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020	→ 7520
	8430 ↓

Engine Detail

Engine Detail
John Deere
turbocharged intercooled diesel
6-cylinder
liquid-cooled
Displacement:	404 ci 6.6 L
Bore/Stroke:	4.25x4.75 inches 108 x 121 mm
Air cleaner:	dual paper elements with pre-cleaner
Compression:	15.7:1
Rated RPM:	2200
Firing order:	1-5-3-6-2-4
Starter volts:	12
Oil capacity:	17 qts 16.1 L
Coolant capacity:	32 qts 30.3 L

Mechanical

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

1971 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020	→ 7520
	8430 ↓

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:	88 qts 83.3 L

Transmission

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

Speeds

Speeds

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 ...

1971 - 1975

Four-wheel Drive (4WD) tractor

Series:

Series:	7020	→ 7520
	8430 ↓

John Deere 7020 Tires

John Deere 7020 Tires
Ag front:	18.4-34S
Ag rear:	18.4-34S

Dimensions

Dimensions
Wheelbase:	120 inches 304 cm
Weight:	18,495 lbs 8389 kg

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...