| Manufacturer | John Deere |
| Price | - |
| Model | 20A |
| Equipment Type | Orchard Vineyard Tractors |
| Factory | Goldoni |
JOHN DEERE 20A POWER
| Engine | 21hp / 15.7kW |
| PTO (claimed) | 17hp / 12.7kW |
ENGINE DETAIL
The John Deere 20A is equipped with a Lombardini 12LD475-2 diesel engine, delivering 21hp at 3000 RPM and 53 lb-ft of torque at 2300 RPM, making it suitable for light agricultural tasks. Its compact displacement of 1.0L and air-cooled design promote fuel efficiency and ease of maintenance but may face overheating challenges under heavy loads. Additionally, a valve clearance of 0.06 inches ensures optimal performance; however, consistent monitoring is essential to maintain engine longevity.
| Description | Lombardini 12LD475-2 diesel 2-cylinder air-cooled |
| Displacement | 58.2ci / 1.0L |
| Bore/Stroke | 3.54x2.95inches / 90x 75mm |
| Power | 21hp / 15.7kW |
| Rated RPM | 3000 |
| Torque | 53lb-ft / 71.9Nm |
| Torque RPM | 2300 |
| Firing order | 1-2 |
| Starter volts | 12 |
| Intake valve clearance | 0.06inches / 1.524 mm |
| Exhaust valve clearance | 0.06inches / 1.524 mm |
ENGINE OIL
The John Deere 20A tractor has an oil capacity of 3.17 quarts (3.0 liters), which is relatively modest, indicating lower oil usage in smaller engines. This can be advantageous for routine maintenance, as it simplifies oil changes and minimizes costs. However, operators should ensure regular oil level checks to prevent potential engine wear due to inadequate lubrication under heavy load conditions.
| Oil capacity | 3.17qts / 3.0L |
JOHN DEERE 20A ENGINE
The John Deere 20A features a Lombardini 1.0L 2-cylinder diesel engine, providing efficient fuel consumption and compact power output suitable for small agricultural tasks. Its lightweight design enhances maneuverability, making it ideal for confined spaces or smaller fields. However, the limited horsepower may pose challenges for heavier-duty applications, so it's best utilized for light to moderate farming activities.
| Description | Lombardini 1.0L 2-cyl diesel |
TRANSMISSION
The John Deere 20A tractor features a manual transmission with 6 forward and 3 reverse gears, optimizing control for various field conditions. A key advantage is the simple control layout with two levers for range and gear selection, though it requires the tractor to be stopped and the clutch engaged for shifting, which may slow operation. With an oil capacity of 6.34 quarts (6.0L), proper lubrication is crucial for maintaining transmission performance and longevity.
| Type | gear |
| Gears | 6 forward and 3 reverse |
| Oil capacity | 6.34qts / 6.0L |
| Description | Two levers control the transmission The left-side range lever selects low, high, or reverse The right-side gear lever selects one of three gears Tractor must be stopped and clutch used to shift either range or gears |
SPEEDS
| Description | With 6.5/80x15 tires |
MECHANICAL
The John Deere 20A tractor features a 4x4 articulated 4WD chassis, providing enhanced traction and stability in diverse terrains, ideal for agricultural applications requiring maneuverability. The hydrostatic power steering ensures precise control, particularly beneficial in tight spaces, while the hydraulic wet disc brakes enhance stopping power in demanding conditions. The 6-speed gear transmission offers versatility for speed adjustments, though its mechanical complexity may require proficient maintenance expertise.
| Chassis | 4x4 articulated 4WD |
| Steering | hydrostatic power |
| Brakes | hydraulic wet disc |
| Cab | Two-post ROPS |
| Transmission | 6-speed gear |
CAPACITY
| Fuel | 6 gal /22.7 L |
| Hydraulic system | 1.7gal / 6.4L |
HYDRAULICS
| Type | open center |
| Capacity | 1.7gal / 6.4L |
| Pressure | 1813psi / 125.0bar |
| Total flow | 9gpm / 34.1lpm |
| Steering press. | 1305psi / 90.0bar |
TRACTOR HITCH
| Rear Type | 1/1N |
| Rear lift | 1,100lbs / 498kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540 |
JOHN DEERE 20A TIRES
The John Deere 20A tractor features both front and rear tires of size 6.5/80x15, which provide enhanced stability and traction, suitable for various agricultural applications. However, this tire configuration may limit flotation in softer soils and reduce overall ride comfort on uneven terrain. In scenarios requiring increased versatility, consideration for alternate tire sizes or types might be necessary to better accommodate specific field conditions.
| Ag front | 6.5/80x15 |
| Ag rear | 6.5/80x15 |
DIMENSIONS
| Wheelbase | 39.3inches / 99cm |
| Length | 98inches / 248cm |
| Width | 32inches / 81cm |
| Height | 40inches / 101cm |
| Shiping weight | 1,654lbs / 750kg |
| Ground clearance | 9.25inches / 23cm (front axle) |
DIMENSIONS & TIRES
The John Deere 20A tractor features a compact wheelbase of 39.3 inches, enhancing maneuverability in tight spaces, making it ideal for small farms or landscaping projects. Weighing 1,654 lbs, its stability is favorable for various applications, but may limit transportability without a suitable trailer. Both front and rear tires are 6.5/80x15, which provide uniform traction across diverse terrains, although tire pressure management is crucial for optimal performance.
| Wheelbase | 39.3inches / 99cm |
| Weight | 1,654lbs / 750kg |
| Front tire | 6.5/80x15 |
| Rear tire | 6.5/80x15 |
20A SERIAL NUMBERS
| Location | On the left-front, just ahead of the front tire, behind the muffler |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 14 |
| Battery volts | 12 |
| Battery AH | 45 |