| Manufacturer |
J.I. Case |
| Price |
892(USD) |
| Model |
R |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
|
VARIANTS
NEBRASKA TRACTOR TEST 308
| Description |
Gasoline 3-speed 2WD October 10 - 20, 1938 Link: Nebraska Tractor Test 308 file Drawbar performance Gear 2 used for power test |
| Belt power (max) |
20.52hp / 15.3kW |
| Belt fuel use (max) |
2.2gal/hour / 8.3l/hour |
| Max power |
18.23hp / 13.6kW |
J.I. CASE R POWER
| Drawbar (claimed) |
14hp / 10.4kW |
| PTO (claimed) |
18hp / 13.4kW |
| Drawbar (tested) |
18.23hp / 13.6kW |
| Belt (tested) |
20.52hp / 15.3kW |
ENGINE DETAIL
The J.I. Case R tractor, powered by a Waukesha 4-cylinder gasoline engine, offers a moderate displacement of 132.7 cubic inches (2.2 liters) and operates at a low-rated RPM of 1425, making it suitable for steady, low-speed applications like tilling or hauling. Its bore and stroke specification (3.25x4.00 inches or 83x102 mm) indicates a relatively long stroke, which can enhance torque output at low speeds, but may limit high-speed performance. The 17-quart (16.1 L) coolant capacity ensures efficient thermal management, essential for prolonged operation in demanding conditions, though it may necessitate careful monitoring in high-temperature scenarios.
| Description |
Waukesha gasoline 4-cylinder liquid-cooled |
| Displacement |
132.7ci / 2.2L |
| Bore/Stroke |
3.25x4.00inches / 83x 102mm |
| Rated RPM |
1425 |
| Coolant capacity |
17qts / 16.1L |
J.I. CASE R ENGINE
The J.I. Case R tractor, powered by a Waukesha 2.2L 4-cylinder gasoline engine, offers a balance of moderate power and efficiency, ideal for light to medium-duty agricultural tasks. However, its smaller engine displacement may limit towing capacity and overall performance in heavier applications compared to diesel counterparts. Users should consider fuel costs versus workload to maximize operational efficiency in specific farming scenarios.
| Description |
Waukesha 2.2L 4-cyl gasoline |
TRANSMISSIONS OVERVIEW
The J.I. Case R tractor features a 4-speed transmission coupled with a unique 3-speed option, offering versatile gear ratios suitable for various field conditions. The multi-speed configuration enhances its operational flexibility, allowing efficient handling of different tasks, from plowing to hauling. However, users should consider the complexity of shifting between these speeds, which may require additional training for optimal performance.
| Description |
4-speed/3-speed |
TRANSMISSION 1
The J.I. Case R tractor features a simple transmission system with four forward gears and one reverse gear, facilitating straightforward operation for various agricultural tasks. This limited gear selection may enhance reliability and ease of maintenance but could restrict versatility in diverse terrain and speed requirements. Optimal for small to medium-sized farms, this setup is ideal for operations demanding steady power delivery, albeit less suitable for applications requiring rapid gear changes or high-speed travel.
| Gears |
4 forward and 1 reverse |
TRANSMISSION 2
The J.I. Case R tractor features a basic transmission system with 3 forward gears and 1 reverse, providing limited speed options which may hinder performance in varied tasks. This simplicity can reduce maintenance complexity, making it easier for operators to manage compared to multi-speed models. However, for demanding agricultural or heavy-duty applications, the lack of gearing options may pose a challenge in achieving optimal torque and speed regulation.
| Gears |
3 forward and 1 reverse |
MECHANICAL
The J.I. Case R tractor features a 4x2 2WD chassis, providing simplicity in design but limiting traction on uneven terrain compared to 4WD models. Its open operator station enhances visibility and ventilation, though it may expose the operator to environmental conditions. The 4-speed, 3-speed transmission offers versatility for various field operations, but may present challenges in maintaining optimal power delivery during demanding tasks.
| Chassis |
4x2 2WD |
| Cab |
Open operator station |
| Transmissions |
4-speed 3-speed |
J.I. CASE R TIRES
The J.I. Case R tractor features 5.00-15 front tires providing good maneuverability for narrow spaces, while the 11.24-24 rear tires offer enhanced traction and stability for heavy-duty work. The combination of tire sizes suggests a design optimized for agriculture, enabling effective plowing and hauling. However, users may need to consider potential challenges with tire wear on uneven terrain and ensure proper maintenance to maximize performance.
| Ag front |
5.00-15 |
| Ag rear |
11.24-24 |
DIMENSIONS
DIMENSIONS & TIRES
The J.I. Case R tractor's weight of 4,150 lbs (1,882 kg) provides a stable base for field operations, enhancing traction and reducing the risk of overturning on uneven terrain, especially with its wider rear tires (11.24-24). The front tire specification (5.00-15) enables precise steering but may limit load-carrying capability compared to larger front tire options. This configuration is well-suited for agricultural applications requiring maneuverability in tight spaces, but the smaller front tires may not perform optimally in heavy-duty tasks or across soft soils.
| Weight |
4150lbs / 1882kg |
| Front tire |
5.00-15 |
| Rear tire |
11.24-24 |
R SERIAL NUMBERS
| Location |
Plate near instrument panel |
| 1936 |
300901 |
| 1937 |
301001 |
| 1938 |
4200001 |
| 1939 |
4300001 |
| 1940 |
4400001 |
