7020 by John Deere

1971 - 1975

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

Series:

Series:7020 → 75208430 ↓

1972 - 1975

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

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

Series:

Series:7020 → 7520
8430 ↓

Nebraska Tractor Test 1063

Nebraska Tractor Test 1063

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

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

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

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...

Electrical

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

7020 relate tractors