John Deere 7020 Specs ( 1971-1975 )
Overview
The John Deere 7020 is a four-wheel drive farm tractor produced in Waterloo, Iowa, between 1971 and 1975, with a total production run of 2,586 units. It features a 6.6L 6-cylinder turbocharged intercooled diesel engine and was offered with either an 8-speed or 16-speed Synchro-Range transmission. Standard equipment includes a cab, hydrostatic power steering, and a 1000 RPM rear PTO.
Ideal Applications
Tested Power Output:
According to Nebraska Tractor Test 1063, the 7020 achieved a maximum drawbar power of 127.72 hp and a maximum pull of 18,726 lbs while utilizing Gear 1-Hi for the pull test.
Engine and Fluid Capacities:
The liquid-cooled diesel engine is supported by a 156-gallon fuel tank, a 32-quart coolant system, and a 17-quart oil capacity to manage its 2200 rated RPM operation.
Transmission and Chassis Configuration:
The 18,495 lb vehicle is built on a 120-inch wheelbase and utilizes a partially synchronized transmission system alongside a 26 gpm closed-center hydraulic pump.
Production
| Description | Built in Waterloo, Iowa, USA / Original price was $22,000 in 1975 |
|---|---|
| Drive type | Four-wheel Drive (4WD) tractor |
| Manufacturer | John Deere |
| Total built | 2,586 |
Engine
| Engine type | John Deere 6.6L 6-cyl diesel |
|---|---|
| Air cleaner | dual paper elements with pre-cleaner |
| Bore/Stroke | 4.25x4.75 inches (108 x 121 mm) |
| Compression | 15.7:1 |
| Coolant capacity | 32 qts (30.3 L) |
| Description | John Deere / turbocharged intercooled diesel / 6-cylinder / liquid-cooled |
| Displacement | 404 ci (6.6 L) |
| Firing order | 1-5-3-6-2-4 |
| Oil capacity | 17 qts (16.1 L) |
| Rated RPM | 2200 |
| Starter volts | 12 |
| Drawbar (tested) | 127.72 hp (95.2 kW) |
| PTO (tested) | 146.17 hp (109.0 kW) |
Transmission
| Description | Eight-speed Deere Synchro-Range transmission with added high and low gears. |
|---|---|
| Gears | 8 forward and 2 reverse / 16 forward and 4 reverse |
| Oil capacity | 88 qts (83.3 L) |
| Transmission | Syncro-Range / Syncro-Range Hi-Lo |
| Type | partially synchronized / partially synchronized |
| Transmission type | 8-speed partially synchronized / 16-speed partially synchronized |
| Transmission type | 8-speed partially synchronized / 16-speed partially synchronized |
Mechanical
| Cab | Cab standard |
|---|---|
| Drive type | Four-wheel drive |
| Steering | hydrostatic power |
Capacity
| Fuel | 156 gal (590.5 L) |
|---|---|
| Hydraulic system | 22 gal (83.3 L) |
Hydraulics
| Capacity | 22 gal (83.3 L) |
|---|---|
| Pump flow | 26 gpm (98.4 lpm) |
| Type | closed center |
| Valves | 2 (early) |
PTO
| Rear PTO | transmission |
|---|---|
| Rear PTO Type | 1000 |
Electrical
| Batteries | 2 |
|---|---|
| Battery volts | 6 |
| Charging system | Motorola alternator *Early |
| Ground | negative |
Dimensions & Tires
| Weight | 18,495 lbs (8389 kg) |
|---|---|
| Wheelbase | 120 inches (304 cm) |
| Front tire | 18.4-34S |
| Rear tire | 18.4-34S |
| Weight | 18,495 lbs (8389 kg) |
| Wheelbase | 120 inches (304 cm) |
| Ag front | 18.4-34S |
| Ag rear | 18.4-34S |
7020 Serial Number Location
| Description | Serial number plate on the rear of the tractor, above the PTO. |
|---|
7020 Serial Numbers
| 1971 | 773R001000 |
|---|---|
| 1972 | 773R002007 |
| 1973 | 773R002548 |
| 1974 | 773R003122 |
| 1975 | 773R003542 |
| Description | FAQ: How to read a serial number table. |
| Final | 773R003708 |
Nebraska Tractor Test 1063
| Description | Diesel 16-speed 4WDApril 20 - May 4, 1971Link: Nebraska Tractor Test 1063 file / PTO performance / Drawbar performance / Gear 4-Lo used for power test. / Gear 1-Hi used for pull test. |
|---|---|
| Fuel use | 10.2 gal/hour (38.6 l/hour) / 10.0 gal/hour (37.9 l/hour) |
| Max power | 127.72 hp (95.2 kW) |
| Max pull | 18,726 lbs (8494 kg) |
| Power at rated engine speed | 146.17 hp (109.0 kW) |
References
| Description | The John Deere 20 Series New Generation Tractors by Benjamin Hain |
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