| Manufacturer |
John Deere |
| Price |
10,000(USD) |
| Model |
3020 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Waterloo, Iowa, USA |
NEBRASKA TRACTOR TEST 848 2
| Description |
Diesel Powershift 2WD September 23 - October 2, 1963 Link: Nebraska Tractor Test 848 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
65.28hp / 48.7kW |
| Fuel use |
5.0gal/hour / 18.9l/hour |
| Power at rated PTO speed |
59.25hp / 44.2kW |
| Max power |
54.77hp / 40.8kW |
| Max pull |
7536lbs / 3418kg |
NEBRASKA TRACTOR TEST 851 2
| Description |
Gasoline Powershift 2WD September 30 - October 7, 1963 Link: Nebraska Tractor Test 851 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
64.14hp / 47.8kW |
| Fuel use |
6.2gal/hour / 23.5l/hour |
| Power at rated PTO speed |
59.33hp / 44.2kW |
| Max power |
54.60hp / 40.7kW |
| Max pull |
7,621lbs / 3456kg |
NEBRASKA TRACTOR TEST 852 2
| Description |
LP gas Powershift 2WD October 2 - 11, 1963 Link: Nebraska Tractor Test 852 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
64.70hp / 48.2kW |
| Fuel use |
7.7gal/hour / 29.1l/hour |
| Power at rated PTO speed |
56.34hp / 42.0kW |
| Max power |
54.50hp / 40.6kW |
| Max pull |
7,725lbs / 3504kg |
NEBRASKA TRACTOR TEST 940 2
| Description |
Diesel Synchro-Range 2WD May 17 - 25, 1966 Link: Nebraska Tractor Test 940 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
71.26hp / 53.1kW |
| Fuel use |
4.9gal/hour / 18.5l/hour |
| Power at rated PTO speed |
64.32hp / 48.0kW |
| Max power |
61.47hp / 45.8kW |
| Max pull |
7596lbs / 3445kg |
NEBRASKA TRACTOR TEST 941 2
| Description |
Gasoline Synchro-Range 2WD May 31 - June 7, 1966 Link: Nebraska Tractor Test 941 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
70.59hp / 52.6kW |
| Fuel use |
6.2gal/hour / 23.5l/hour |
| Power at rated PTO speed |
64.74hp / 48.3kW |
| Max power |
61.38hp / 45.8kW |
| Max pull |
7558lbs / 3428kg |
NEBRASKA TRACTOR TEST 942 2
| Description |
LP gas Synchro-Range 2WD May 31 - June 8, 1966 Link: Nebraska Tractor Test 942 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
70.66hp / 52.7kW |
| Fuel use |
8.1gal/hour / 30.7l/hour |
| Power at rated PTO speed |
62.88hp / 46.9kW |
| Max power |
63.13hp / 47.1kW |
| Max pull |
7680lbs / 3483kg |
JOHN DEERE 3020 POWER
| Drawbar (claimed) |
57hp / 42.5kW |
| PTO (claimed) |
70hp / 52.2kW (Synchro-Range) 65hp / 48.5kW (Powershift) |
| Drawbar (tested) |
63.13hp / 47.1kW |
| PTO (tested) |
71.26hp / 53.1kW |
ENGINES OVERVIEW
The John Deere 3020 tractor offers versatile engine options, including a 3.7L gasoline, 4.4L diesel, and 3.7L LP gas variants, catering to diverse fuel preferences and efficiency requirements. Key advantages include the robust performance of the diesel engine, which provides higher torque and improved fuel economy, while the gasoline and LP gas options may appeal to operations requiring cleaner emissions or reduced maintenance in warmer climates. However, operators must consider the weight distribution and power output differentials, particularly in heavy-duty applications, to ensure optimal performance and traction.
| Description |
John Deere 3.7L 4-cyl gasoline John Deere 4.4L 4-cyl diesel John Deere 3.7L 4-cyl LP gas |
ENGINE DETAIL 1
The John Deere 3020 is a robust tractor powered by a gasoline 4-cylinder engine with a displacement of 3.7L and a compression ratio of 7.5:1, providing sufficient torque for moderate agricultural tasks. Its oil bath air cleaner enhances engine longevity by promoting cleaner intake air, while the specified valve clearances (0.015 inches intake and 0.028 inches exhaust) ensure optimal performance and efficiency under operating RPMs of 1500-2500. For maintenance, pay attention to the spark plug gap of 0.025 inches and point gap of 0.022 inches to guarantee reliable ignition and smooth operation.
| Description |
John Deere gasoline 4-cylinder liquid-cooled |
| Displacement |
227ci / 3.7L |
| Bore/Stroke |
4.25x4.00inches / 108x 102mm |
| Air cleaner |
oil bath |
| Compression |
7.5:1 |
| Rated RPM |
2500 |
| Operating RPM |
1500-2500 |
| Firing order |
1-3-4-2 |
| Starter volts |
12 |
| Sparkplug gap |
0.025inches / 0.635mm |
| Point gap |
0.022inches / 0.559mm |
| Intake valve clearance |
0.015inches / 0.381mm |
| Exhaust valve clearance |
0.028inches / 0.711mm |
ENGINE OIL
The John Deere 3020 has an oil capacity of 9 quarts (8.5 liters), which is relatively standard for tractors of its class, accommodating adequate lubrication for engine longevity. Ensure regular oil changes to maintain optimal engine performance and prevent wear. However, attention must be given to the potential for oil leaks in older models, which could lead to insufficient lubrication if not monitored.
ENGINE DETAIL 2
The John Deere 3020 is powered by a 4-cylinder diesel engine with a 4.4L displacement, optimal for farm and industrial applications due to its rated RPM of 2500, maximizing torque and power for heavy-duty tasks. The oil bath air cleaner and ether injection pre-heating enhance engine longevity and start-up performance in cold conditions, though they may increase maintenance complexity. With a 16.5:1 compression ratio and precise valve clearances, this tractor provides efficient combustion and performance, making it suitable for diverse agricultural uses while ensuring adherence to service specifications is essential for reliability.
| Description |
John Deere diesel 4-cylinder liquid-cooled |
| Displacement |
270ci / 4.4L |
| Bore/Stroke |
4.25x4.75inches / 108x 121mm |
| Air cleaner |
oil bath |
| Pre-heating |
ether injection |
| Compression |
16.5:1 |
| Rated RPM |
2500 |
| Operating RPM |
1500-2500 |
| Firing order |
1-3-4-2 |
| Starter volts |
24 |
| Oil capacity |
9qts / 8.5L |
| Intake valve clearance |
0.018inches / 0.457mm |
| Exhaust valve clearance |
0.018inches / 0.457mm |
ENGINE DETAIL 3
The John Deere 3020's 4-cylinder LP gas engine provides efficient power with a displacement of 3.7L and a compression ratio of 9.0:1, making it suitable for varying agricultural tasks. Its oil bath air cleaner enhances longevity and reliability, while the system operates optimally at a rated RPM of 2500, allowing for versatile use across different operating RPMs (1500-2500). However, proper maintenance of spark plug and valve clearances (0.015in and 0.028in respectively) is crucial to ensure optimal performance and prevent misfires.
| Description |
John Deere LP gas 4-cylinder liquid-cooled |
| Displacement |
227ci / 3.7L |
| Bore/Stroke |
4.25x4.00inches / 108x 102mm |
| Air cleaner |
oil bath |
| Compression |
9.0:1 |
| Rated RPM |
2500 |
| Operating RPM |
1500-2500 |
| Firing order |
1-3-4-2 |
| Starter volts |
12 |
| Oil capacity |
9qts / 8.5L |
| Sparkplug gap |
0.015inches / 0.381mm |
| Point gap |
0.022inches / 0.559mm |
| Intake valve clearance |
0.015inches / 0.381mm |
| Exhaust valve clearance |
0.028inches / 0.711mm |
JOHN DEERE 3020 ENGINES
The John Deere 3020 offers a choice of three engine configurations: a 3.7L 4-cylinder gasoline, a 4.4L 4-cylinder diesel, and a 3.7L 4-cylinder LP gas, catering to varied power needs and fuel preferences. Key advantages include efficient fuel consumption in the diesel variant, suited for extensive agricultural tasks, while the gasoline option provides versatility for lighter workloads. However, the diesel's higher maintenance needs and the potential higher initial cost may be challenges for some users, making it essential to match the engine type with specific operational requirements.
| Description |
John Deere 3.7L 4-cyl gasoline John Deere 4.4L 4-cyl diesel John Deere 3.7L 4-cyl LP gas |
TRANSMISSIONS OVERVIEW
The John Deere 3020 features an 8-speed partially synchronized transmission, allowing for smoother gear shifts under load compared to fully unsynchronized models. Its full power shift capability enhances operational efficiency by enabling the operator to change gears without interrupting power delivery, particularly beneficial for tasks requiring frequent speed adjustments. However, the complexity of the transmission may present maintenance challenges and necessitate skilled operators for optimal performance.
| Description |
8-speed partially synchronized 8-speed full power shift |
TRANSMISSION 1
The John Deere 3020 features a partially synchronized Synchro-Range transmission with 8 forward and 2 reverse gears, allowing for smooth shifts and improved productivity in varied terrain. The dry disc clutch enhances durability but may require more precise operation during engagement compared to wet clutches. With an oil capacity of 32 quarts (30.3 liters), efficient lubrication is ensured, although regular maintenance is critical to prevent overheating and prolong performance longevity.
| Transmission |
John Deere Synchro-Range |
| Type |
partially synchronized |
| Gears |
8 forward and 2 reverse |
| Clutch |
dry disc |
| Oil capacity |
32qts / 30.3L |
SPEEDS 1
| Description |
With 15.5-38 rear tires |
TRANSMISSION 2
The John Deere 3020 features a full power shift transmission with 8 forward and 4 reverse gears, providing seamless gear transitions essential for optimal field operations. The hydraulic wet disc clutch enhances durability and performance under load, allowing for efficient power management. With an oil capacity of 44 quarts, proper maintenance is crucial to ensure reliable operation and longevity of the transmission system.
| Transmission |
John Deere Powershift |
| Type |
full power shift |
| Gears |
8 forward and 4 reverse |
| Clutch |
hydraulic wet disc |
| Oil capacity |
44qts / 41.6L |
SPEEDS 2
| Description |
With 15.5-38 rear tires |
MECHANICAL
The John Deere 3020 features a robust 4x2 2WD chassis, which provides basic maneuverability but limits traction on uneven terrain compared to 4WD models. The optional rear differential lock can enhance performance in challenging conditions, while the power-assisted steering ensures ease of handling in various operational scenarios. Its 8-speed partially synchronized and full power shift transmissions allow for versatile speed management, but users may find the open operator station less sheltered in inclement weather, affecting comfort during extended use.
| Chassis |
4x2 2WD |
| Differential lock |
rear optional |
| Steering |
power assist |
| Brakes |
differential hydraulic wet disc |
| Cab |
Open operator station |
| Transmissions |
8-speed partially synchronized 8-speed full power shift |
CAPACITY
| Fuel |
29gal / 109.8L |
| LP-Gas Fuel |
33.6gal / 127.2L |
| Syncro-Range Hydraulic system |
8gal / 30.3L |
| Power Shift Hydraulic system |
11gal / 41.6L |
HYDRAULICS
| Type |
closed center |
| Syncro-Range Capacity |
8gal / 30.3L |
| Power Shift Capacity |
11gal / 41.6L |
| Pressure |
2100psi / 144.8bar |
| Valves |
1 |
| SCV flow |
6 gpm /22.7 lpm |
| Total flow |
14gpm / 53.0lpm |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540/1000/1000 |
| Engine RPM |
540@2100 / 1000@2100 |
| Mid RPM |
1000 |
JOHN DEERE 3020 TIRES
The John Deere 3020 features versatile tire options, with the Ag front ranging from 6.00-16 to 11.00-12 single tires, and the Ag rear offering 13.6-38 or 15.5-38, providing adaptability for various agricultural tasks. The larger rear tires enhance traction and stability on uneven terrain, making it suitable for heavy tillage and hauling applications. However, operators should consider potential issues with compacted soil due to high weight distribution when using larger tires in tighter fields.
| Ag front |
6.00-16/7.50-15/7.50-16 (single) / 11.00-12 (single) |
| Ag rear |
13.6-38/15.5-38 |
DIMENSIONS
| Wheelbase |
90inches / 228cm |
| Length |
138.5inches / 351cm |
| Width |
89.625inches / 227cm |
| Height (steering wheel) |
75.5inches / 191cm |
| Height (exhaust) |
87.5inches / 222cm |
| Rear axle |
Bar |
| Rear tread |
60 to 113inches / 152to 287cm (extra long axle) |
JOHN DEERE 3020 WEIGHT
| Shipping |
7139lbs / 3238kg (gas) 7300lbs / 3311kg (LP-gas) 7342lbs / 3330kg (diesel) |
| Operating |
7695lbs / 3490kg (gas) 7945lbs / 3603kg (diesel) |
| Ballasted |
9585lbs / 4347kg |
DIMENSIONS & TIRES
The John Deere 3020 tractor, with a 90-inch wheelbase, offers stability during operations, particularly beneficial for row-crop applications. Weighing between 7139 to 7945 pounds, it provides good traction, but may pose challenges on softer soil conditions due to potential soil compaction. The tire configuration, featuring 6.00-16 front tires and 13.6-38 rear tires, allows for a balanced load distribution, enhancing its performance across diverse terrains.
| Wheelbase |
90inches / 228cm |
| Weight |
7139 to 7945 pounds |
| Front tire |
6.00-16 |
| Rear tire |
13.6-38 |
JOHN DEERE 148 LOADER
| Loader weight |
1350lbs / 612kg |
| Height (to pin) |
126inches / 320cm |
| Clearance, dumped bucket |
102inches / 259cm |
| Dump reach |
32inches / 81cm |
| Dump angle |
38° |
| Clearance, level bucket |
121inches / 307cm |
| Rollback angle |
11° |
| Breakout force (lift) |
4700lbs / 2131kg |
| Lift to full height (at pin) |
3100lbs / 1406kg |
| Bucket capacity |
0.5cu yd / 0.4cu m / 0.6cu yd / 0.5cu m / 0.8cu yd / 0.6cu m / 0.9cu yd / 0.7cu m |
| Bucket width |
60inches / 152cm 72inches / 182cm 84inches / 213cm 96inches / 243cm |
JOHN DEERE 48 LOADER
| Loader weight |
1220lbs / 553kg |
| Height (to pin) |
126inches / 320cm |
| Clearance, dumped bucket |
104inches / 264cm |
| Dump reach |
26inches / 66cm |
| Dump angle |
39° |
| Reach at ground |
68inches / 172cm |
| Breakout force (lift) |
3600lbs / 1632kg |
| Lift to full height (at pin) |
2400lbs / 1088kg |
| Bucket width |
60inches / 152cm 72inches / 182cm |
3020 SERIAL NUMBERS
| Location |
Rear of tractor, above PTO |
| 1964 |
50000 |
| 1965 |
68000 |
| 1966 |
84000 |
| 1967 |
97286 |
| 1968 |
112933 |
| 1969 |
123000 |
| 1970 |
129897 |
| 1971 |
150000 |
| 1972 |
154197 |
ELECTRICAL
| Ground |
positive (12V) / floating (24V) |
| Batteries |
1 (12V)/2 (24V) |
| Battery volts |
12 |
