| Manufacturer |
J.I. Case |
| Price |
- |
| Model |
LA |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Racine, Wisconsin, USA |
NEBRASKA TRACTOR TEST 480
| Description |
Gasoline 4-speed 2WD/August 15 - 28, 1952/Link: Nebraska Tractor Test 480 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
58.53 hp/43.6 kW |
| Belt fuel use (max) |
5.8 gal/hour/22.0 l/hour |
| Max power |
51.68 hp/38.5 kW |
| Max pull |
6,659 lbs/3020 kg |
NEBRASKA TRACTOR TEST 481
| Description |
Tractor fuel 4-speed 2WD/August 18 - 29, 1952/Link: Nebraska Tractor Test 481 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
48.86 hp/36.4 kW |
| Belt fuel use (max) |
5.0 gal/hour/18.9 l/hour |
| Max power |
44.51 hp/33.2 kW |
| Max pull |
6,444 lbs/2922 kg |
NEBRASKA TRACTOR TEST 482
| Description |
LP gas 4-speed 2WD/August 21 - September 6, 1952/Link: Nebraska Tractor Test 482 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
59.60 hp/44.4 kW |
| Belt fuel use (max) |
6.7 gal/hour/25.4 l/hour |
| Max power |
51.73 hp/38.6 kW |
NEBRASKA TRACTOR TEST 482
| Max pull |
6,874 lbs/3118 kg |
J.I. CASE LA POWER
| Drawbar (claimed) |
51 hp/38.0 kW |
| Belt (claimed) |
58 hp/43.3 kW |
| Drawbar (tested) |
51.73 hp/38.6 kW |
| Belt (tested) |
59.60 hp/44.4 kW |
ENGINES OVERVIEW
The J.I. Case LA tractor is equipped with a robust 6.6L 4-cylinder engine, offering versatility as it can run on gasoline or LP gas, providing adaptability for different agricultural needs. The choice of fuel can impact operational costs and environmental factors, with LP gas generally being cleaner burning but requiring a specialized fuel system. Be aware of potential challenges, such as fuel availability and costs, which may vary regionally, especially for LP gas usage.
| Description |
J.I. Case 6.6L 4-cyl gasoline/J.I. Case 6.6L 4-cyl tractor fuel/J.I. Case 6.6L 4-cyl LP gas |
ENGINE DETAIL 1
The J.I. Case LA tractor's 4-cylinder, liquid-cooled gasoline engine with a displacement of 403.2 ci (6.6 L) and low compression ratio of 4.83:1 provides reliable operation but limits overall power output, making it ideal for lighter agricultural tasks. The oil bath air cleaner enhances filtration efficiency, while the 6-volt starter system is straightforward but may require upgrading for improved cranking in colder conditions. Regular maintenance, such as monitoring valve clearances and spark plug gaps, is essential to optimize engine performance and longevity.
| Description |
J.I. Case/gasoline/4-cylinder/liquid-cooled |
| Displacement |
403.2 ci/6.6 L |
| Bore/Stroke |
4.625x6 inches/117 x 152 mm |
| Air cleaner |
oil bath |
| Compression |
4.83 : 1 |
| Rated RPM |
1100 |
| Firing order |
1-3-4-2 |
| Starter volts |
6 |
| Oil capacity |
15 qts/14.2 L |
| Coolant capacity |
61 qts/57.7 L |
| Sparkplug gap |
0.030 inches/0.762 mm |
| Intake valve clearance |
0.018 inches/0.457 mm *Cold |
| Exhaust valve clearance |
0.018 inches/0.457 mm *Cold |
ENGINE DETAIL 2
The J.I. Case LA tractor features a robust 4-cylinder, liquid-cooled engine with a substantial displacement of 403.2 ci (6.6 L), providing ample torque for heavy-duty applications. Its low compression ratio of 4.09:1 and rated RPM of 1100 suggest optimized performance for low-speed, high-load scenarios typical in agricultural tasks. However, the older 6-volt starter system may present challenges in reliability compared to modern 12-volt systems, necessitating careful maintenance and potential upgrades for consistent functionality.
| Description |
J.I. Case/tractor fuel/4-cylinder/liquid-cooled |
| Displacement |
403.2 ci/6.6 L |
| Bore/Stroke |
4.625x6 inches/117 x 152 mm |
| Air cleaner |
oil bath |
| Compression |
4.09 : 1 |
| Rated RPM |
1100 |
| Firing order |
1-3-2-4 |
| Starter volts |
6 |
| Oil capacity |
15 qts/14.2 L |
| Sparkplug gap |
0.030 inches/0.762 mm |
| Intake valve clearance |
0.018 inches/0.457 mm cold |
| Exhaust valve clearance |
0.018 inches/0.457 mm cold |
ENGINE DETAIL 3
The J.I. Case LA tractor features a 4-cylinder liquid-cooled engine with a substantial displacement of 403.2 ci (6.6 L) and a compression ratio of 7.58:1, optimizing torque delivery at a rated RPM of 1150. The oil bath air cleaner offers enhanced filtration and durability, making it suitable for dusty agricultural environments, while the firing order of 1-3-2-4 contributes to smooth operation and reduced vibration. Challenges may include limited RPM range affecting top-end power for certain applications, making it better suited for low to mid-range tasks in farming and light industrial use.
| Description |
J.I. Case/LP gas/4-cylinder/liquid-cooled |
| Displacement |
403.2 ci/6.6 L |
| Bore/Stroke |
4.625x6.00 inches/117 x 152 mm |
| Air cleaner |
oil bath |
| Compression |
7.58:1 |
| Rated RPM |
1150 |
| Firing order |
1-3-2-4 |
J.I. CASE LA ENGINES
The J.I. Case LA tractor is equipped with a robust 6.6L 4-cylinder engine, compatible with gasoline or LP gas, providing versatility in fuel options. With a substantial fuel tank capacity of 31 gallons for gasoline and 29 gallons for tractor fuel, it offers extended operational time, beneficial for large agricultural tasks or extended fieldwork scenarios. However, the auxiliary fuel capacity of only 2 gallons may limit operational flexibility, and careful fuel management is essential to prevent running low during demanding jobs.
| Description |
J.I. Case 6.6L 4-cyl gasoline/J.I. Case 6.6L 4-cyl tractor fuel/J.I. Case 6.6L 4-cyl LP gas |
| Fuel tank |
31 gal/117.3 L (gas)/29 gal/109.8 L (tractor fuel) |
| Aux. fuel |
2 gal/7.6 L |
TRANSMISSION
The J.I. Case LA tractor features an unsynchronized gear transmission with 4 forward and 1 reverse gear, providing basic operational flexibility suitable for agricultural tasks. The lack of synchronization may lead to grinding during gear shifts, which can challenge ease of use, especially for inexperienced operators. However, the simplicity of the gear system may enhance reliability and reduce maintenance needs in less demanding scenarios.
| Type |
unsynchronized gear |
| Gears |
4 forward and 1 reverse |
MECHANICAL
The J.I. Case LA tractor features a 4x2 2WD chassis, providing basic traction and simplicity for light to moderate agricultural tasks. Its manual steering and differential mechanical disc brakes may enhance operator control but could pose challenges in maneuverability and stopping power compared to modern hydraulic systems. The 4-speed unsynchronized gear transmission limits speed versatility, making it suitable for specific tasks but potentially less adaptable for varying loads or terrains.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Brakes |
differential mechanical disc |
| Cab |
Open operator station. |
| Transmission |
4-speed unsynchronized gear |
POWER TAKE-OFF (PTO)
J.I. CASE LA TIRES
The J.I. Case LA tractor features a front tire size of 7.50-18 and a rear tire size of 15-30, which provides a balanced load distribution and enhances stability during operations. The larger rear tires improve traction for plowing and field work while enabling better mobility in varying terrains. However, the relatively narrow front tires may present challenges in front-end lift capabilities and steering stability, particularly in soft or uneven ground.
| Ag front |
7.50-18 |
| Ag rear |
15-30 |
DIMENSIONS
| Operating weight |
7515 lbs/3408 kg |
| Ballasted weight |
10860 lbs/4926 kg |
DIMENSIONS & TIRES
The J.I. Case LA tractor, with a weight of 7515 lbs (3408 kg), provides stability for various agricultural tasks, particularly in muddy or uneven terrain due to its robust build. Its front tires (7.50-18) enable tight turning radii, while the larger rear tires (15-30) improve traction and power transfer for fieldwork. However, the weight may pose challenges for transport, necessitating consideration for appropriate towing equipment.
| Weight |
7515 lbs/3408 kg |
| Front tire |
7.50-18 |
| Rear tire |
15-30 |
LA SERIAL NUMBERS
| 1940 |
4400001 |
| 1941 |
4500001 |
| 1942 |
4600001 |
| 1943 |
4700001 |
| 1944 |
4800001 |
| 1945 |
4900001 |
| 1946 |
5000001 |
| 1947 |
5100001 |
| 1948 |
5200001 |
| 1949 |
5300001 |
| 1950 |
5400001 |
| 1951 |
5500001 |
| 1952 |
5600001 |
| 1953 |
5700001 |
BELT PULLEY
| Diameter |
13 inches/33 cm |
| Width |
8.25 inches/20 cm |
| RPM |
814 |
| Speed |
2770 ft/min/844.30 meters/min |
