Introduction
John Deere 3020 Agricultural Tractor
The John Deere 3020 is a row-crop tractor manufactured between 1964 and 1972 at the Waterloo, Iowa, facility. Part of the John Deere 2020 series lineage, this model was designed to offer versatility across various agricultural configurations, including row-crop, standard, orchard, and high-crop variants.
Engine and Performance
The tractor is powered by a 227 cubic inch (3.7 L) liquid-cooled, inline 4-cylinder engine designed for LP gas fuel. It operates at a rated speed of 2500 RPM. The engine features a 9.0:1 compression ratio and utilizes an oil bath air cleaner for filtration in challenging field conditions.
Transmission and Drivetrain
Two transmission options were available: the Syncro-Range, a partially synchronized unit providing 8 forward and 2 reverse gears, and the full power shift transmission offering 8 forward and 4 reverse gears. Both systems are designed to manage the tractor's 77 hp output, with the power shift version utilizing a hydraulic wet disc clutch system.
Hydraulics and PTO
The 3020 utilizes a closed-center hydraulic system delivering a total flow of 14 gallons per minute (53.0 lpm) at 2100 psi. The independent rear PTO supports 540 and 1000 RPM speeds, while a 1000 RPM mid-PTO option provides further compatibility for specialized implements.
Mechanical and Dimensions
This two-wheel-drive machine features power-assisted steering and differential hydraulic wet disc brakes for enhanced control. The tractor has a wheelbase of 90 inches (228 cm) and an overall length of 138.5 inches (351 cm). Rear tread settings are adjustable to accommodate different row spacings, depending on the axle configuration selected.
Conclusion
The John Deere 3020 served as a reliable workhorse for mid-range farming operations. Its combination of multiple transmission choices, adjustable tread widths, and robust hydraulic capacity allowed it to adapt to a wide array of row-crop and utility applications throughout its production lifecycle.
Production Information of John Deere, 3020
- Original price was $10,000 in 1972
- Row-Crop tractor
| Manufacturer | John Deere |
|---|---|
| Total built | 74,463 (Row Crop) |
| Total built(optional) | Mexico |
| Total built(optional) | 508 (High-Crop) |
| Total built(optional) | 6,307 (Standard) |
| Factories | Waterloo, Iowa, USA |
| Factories(optional) | 139 (Orchard) |
| Factories(optional) | 324 (Special Utility) |
| Factories(optional) | 1,314 (Row-Crop Utility) |
Dimension and Tires Information of John Deere, 3020
| Rear tread | 60 to 113 inches [152 to 287 cm (extra long axle)] |
|---|---|
| Wheelbase | 90 inches [228 cm] |
| Height (exhaust) | 87.5 inches [222 cm] |
| Height (steering wheel) | 75.5 inches [191 cm] |
| Length | 138.5 inches [351 cm] |
| Bar rear axle | 3.125 by 120 inches [79 by 3048 mm] |
| Bar rear axle | 3.125 by 91 inches [79 by 2311 mm] |
| Width | 89.625 inches [227 cm] |
| Rear tread | 60 to 97 inches [152 to 246 cm (long axle)] |
| Rear tread | 60 to 91 inches [152 to 231 cm] |
| Bar rear axle | 3.125 by 104 inches [79 by 2641 mm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 13.6-38 |
| Ag rear(optional) | 11.00-12 (single) |
| Ag rear(optional) | 7.50-15 |
| Ag rear(optional) | 15.5-38 |
| Ag rear(optional) | 7.50-16 (single) |
Engine Specifications of John Deere, 3020
- John Deere
- Liquid-cooled inline
- LP gas
- 4-cylinder
| Intake valve clearance | 0.015 inches [0.381 mm] |
|---|---|
| Point gap | 0.022 inches [0.559 mm] |
| Compression | 9.0:1 |
| Exhaust valve clearance | 0.028 inches [0.711 mm] |
| Operating RPM | 1500-2500 |
| Firing order | 1-3-4-2 |
| Rated RPM | 2500 |
| Displacement | 227 ci [3.7 L] |
| Air cleaner | Oil bath |
| Bore/Stroke | 4.25x4.00 inches [108 x 102 mm] |
| Sparkplug gap | 0.015 inches [0.381 mm] |
| Oil capacity | 9 qts [8.5 L] |
| Starter volts | 12 |
Transmission Information of John Deere, 3020
Transmission variants 1
| Transmission | John Deere Syncro-Range |
|---|---|
| Oil capacity | 32 qts [30.3 L] |
| Clutch | Dry disc |
| Type | Partially synchronized |
| Gears | 8 forward and 2 reverse |
Transmission variants 2
| Transmission | John Deere Powershift |
|---|---|
| Oil capacity | 44 qts [41.6 L] |
| Clutch | Hydraulic wet disc |
| Type | Full power shift |
| Gears | 8 forward and 4 reverse |
- 8-speed partially synchronized
- 8-speed full power shift
Mechanical Specs of John Deere, 3020
- Two-wheel drive
- Differential hydraulic wet disc brakes
- Open operator station.
| Steering | Power assist |
|---|---|
| Final drives | Planetary |
| Differential lock(optional) | Mechanical rear |
Power Information of John Deere, 3020
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 1000@2100 |
| Engine RPM | 540@2100 |
| Rear PTO Type | 540/1000 (1.375) |
| Mid PTO Type | 1000 |
| Mid PTO Type(optional) | 1000 |
Hydraulics Specifications of John Deere, 3020
| Total flow | 14 gpm [53.0 lpm] |
|---|---|
| Type | Closed center |
| Valves | 1 |
| Pressure | 2100 psi [144.8 bar] |
| Syncro-Range Capacity | 8 gal [30.3 L] |
| SCV flow | 6 gpm [22.7 lpm] |
| Power Shift Capacity | 11 gal [41.6 L] |
Three-Point Hitch of John Deere, 3020
| Rear Type | II |
|---|
Electrical System of John Deere, 3020
| Ground | Positive (12V) |
|---|---|
| Ground(optional) | 2 (24V) |
| Batteries | 1 (12V) |
| Batteries(optional) | Floating (24V) |
| Battery volts | 12 |
| Charging system | Generator |
Where it sits
With 77 hp[P] HP, the John Deere 3020 sits just above 3010 (66 HP) in John Deere's range. Its power puts it in the 76th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the John Deere 3020 have?
The John Deere 3020 delivers 77 hp[P] HP.
What years was the John Deere 3020 produced?
The John Deere 3020 was produced in 1964-1972.
What engine does the John Deere 3020 have?
The John Deere 3020 is powered by a LP gas, 4-cylinder engine.
What transmission does the John Deere 3020 use?
The John Deere 3020 uses a John Deere Syncro-Range transmission.
Is the John Deere 3020 4WD?
The John Deere 3020 is available in 2WD.