| Manufacturer |
Case |
| Price |
- |
| Model |
12-20 |
| Equipment Type |
- |
| Factory |
Racine, Wisconsin, USA |
NEBRASKA TRACTOR TEST 91
| Description |
Kerosene 2-speed 2WD April 6 - 17, 1923 Link: Nebraska Tractor Test 91 file Drawbar performance |
| Belt power (max) |
25.54hp / 19.0kW |
| Belt fuel use (max) |
3.6gal/hour / 13.6l/hour |
| Max power |
17.52hp / 13.1kW |
| Max pull |
3,150lbs / 1428kg |
J.I. CASE 12-20 POWER
| Drawbar (claimed) |
12hp / 8.9kW |
| Belt (claimed) |
20hp / 14.9kW |
| Plows |
2 |
| Drawbar (tested) |
17.52hp / 13.1kW |
| Belt (tested) |
25.54hp / 19.0kW |
ENGINE DETAIL
The Case 12-20 tractor features a kerosene-powered, 4-cylinder engine with a displacement of 267.3 ci (4.4 L), providing a balance of torque and fuel economy suitable for heavy-duty agricultural tasks. With a relatively low rated RPM of 1050, it delivers high torque at low engine speeds, making it ideal for plowing and pulling operations. However, the hand-crank starter may pose challenges in starting, especially in colder conditions or for operators unfamiliar with manual starting techniques.
| Description |
J.I. Case kerosene 4-cylinder liquid-cooled |
| Displacement |
267.3ci / 4.4L |
| Bore/Stroke |
4.125x5.00inches / 105 x 127mm |
| Rated RPM |
1050 |
| Starter type |
hand-crank |
J.I. CASE 12-20 ENGINE
The J.I. Case 12-20 tractor features a 4.4L four-cylinder kerosene engine, offering enhanced efficiency through liquid fuel utilization. This engine type provides smoother operation and potentially lower emissions compared to gasoline. However, challenges include the need for a specialized starting procedure in colder climates due to kerosene's lower volatility.
| Description |
J.I. Case 4.4L 4-cyl kerosene |
TRANSMISSION
The Case 12-20 tractor employs a J.I. Case gear transmission, featuring a simple 2 forward and 1 reverse gear configuration. This design offers ease of use and reliability, though the limited gear range may restrict operational versatility in varying terrain or tasks. Ideal for light agricultural tasks and flat fields, this setup may present challenges in hilly or demanding landscapes where more gears could enhance performance.
| Transmission |
J.I. Case |
| Type |
gear |
| Gears |
2 forward and 1 reverse |
MECHANICAL
The Case 12-20 tractor features a 4x2 2WD chassis, which provides simplicity and lower initial costs but may limit traction on uneven terrains compared to 4WD systems. The manual steering, while straightforward, can lead to fatigue during prolonged operation, especially in tight maneuvers. The 2-speed gear transmission offers versatility for different operational speeds but may not provide the same ease of use as modern hydrostatic transmissions in varied applications such as tilling or hauling.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station |
| Transmission |
2-speed gear |
J.I. CASE 12-20 TIRES
The Case 12-20 tractor features 42x12 steel rear agricultural tires, offering enhanced durability and traction on various terrains. These larger tires provide better stability during operations, which is beneficial for handling heavier loads or rough ground conditions. However, the steel construction may result in a stiffer ride, potentially affecting operator comfort during extended use.
DIMENSIONS
| Wheelbase |
63inches / 160cm |
| Length |
109inches / 276cm |
| Width |
58inches / 147cm |
| Height |
55.5inches / 140cm |
| Weight |
4,232lbs / 1919kg |
DIMENSIONS & TIRES
The Case 12-20 tractor features a 63-inch wheelbase, which provides a balance of stability and maneuverability, making it suitable for tight agricultural operations. Its weight of 4,232 lbs enhances traction on various terrains while the rear tire size of 42x12 offers good flotation and grip, ideal for diverse soil conditions. However, its relatively heavy build could challenge mobility on softer ground, requiring careful consideration in wet conditions.
| Wheelbase |
63inches / 160cm |
| Weight |
4,232lbs / 1919kg |
| Rear tire |
42x12 |
BELT PULLEY
| Diameter |
14.5inches / 36cm |
| Width |
6.375inches / 16cm |
| RPM |
1050 |
