Case
J.I. Case LA
The J.I. Case LA is a standard-tread farm tractor produced from 1940 to 1953 by J.I. Case in Racine, Wisconsin, USA. A total of 35,493 units were built. It was often repowered with a Detroit Diesel 3-71 engine. The tractor features a 6.6L 4-cylinder gasoline, tractor fuel, or LP gas engine, a 4-speed unsynchronized gear transmission, and two-wheel drive with manual steering. It has an open operator station and differential mechanical disc brakes. The LA has a drawbar power of about 51 hp and belt power of about 58 hp. It can pull 5 plows and has a rear PTO type 550. Dimensions include a wheelbase of 82 inches, length of 140 inches, and operating weight of 7515 lbs. Tires vary with agricultural steel and rubber options.
Power64 hp[B]
Founded1940 - 1953
ModelLA
Technical Specifications
Detailed specifications and technical data for J.I. Case LA
Power
| Plows | 5 |
|---|---|
| Belt (tested) | 59.60 hp (44.4 kW) |
| Belt (claimed) | 58 hp (43.3 kW) |
| Drawbar (tested) | 51.73 hp (38.6 kW) |
| Drawbar (claimed) | 51 hp (38.0 kW) |
Tires
| Ag rear | 15-30, 14-30, 48x12 (steel) |
|---|---|
| Ag front | 7.50-18, 30x6 (steel) |
Engine
| Aux. fuel | 2 gal (7.6 L) |
|---|---|
| Fuel tank | 31 gal (gas) (117.3 L), 29 gal (tractor fuel) (109.8 L) |
| Details LP gas | Coolingliquid-cooled Cylinders4-cylinder Fuel typeLP gas Rated RPM1150 Air cleaneroil bath Bore/Stroke4.625x6.00 inches (117 x 152 mm) Compression7.58:1 Displacement403.2 ci (6.6 L) Firing order1-3-2-4 ManufacturerJ.I. Case |
| Engine options | 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 |
| Details gasoline | Coolingliquid-cooled Cylinders4-cylinder Fuel typegasoline Rated RPM1100 Air cleaneroil bath Bore/Stroke4.625x6.00 inches (117 x 152 mm) Compression4.83:1 Displacement403.2 ci (6.6 L) Firing order1-3-4-2 ManufacturerJ.I. Case Oil capacity15 qts (14.2 L) Sparkplug gap0.030 inches (0.762 mm) Starter volts6 Coolant capacity61 qts (57.7 L) Intake valve clearance0.018 inches (0.457 mm) Cold Exhaust valve clearance0.018 inches (0.457 mm) Cold |
| Details tractor fuel | Coolingliquid-cooled Cylinders4-cylinder Fuel typetractor fuel Rated RPM1100 Air cleaneroil bath Bore/Stroke4.625x6 inches (117 x 152 mm) Compression4.09 : 1 Displacement403.2 ci (6.6 L) Firing order1-3-2-4 ManufacturerJ.I. Case Oil capacity15 qts (14.2 L) Sparkplug gap0.030 inches (0.762 mm) Starter volts6 Intake valve clearance0.018 inches (0.457 mm) Exhaust valve clearance0.018 inches (0.457 mm) |
Variants
| LA | farm |
|---|---|
| LAI | industrial |
Dimensions
| Width | 67 inches (steel) (170 cm), 76.75 inches (rubber) (194 cm) |
|---|---|
| Length | 140 inches (355 cm) |
| Wheelbase | 82 inches (208 cm) |
| Height (hood) | 58.5 inches (steel) (148 cm), 59.5 inches (rubber) (151 cm) |
| Ballasted weight | 10860 lbs (4926 kg) |
| Operating weight | 7515 lbs (3408 kg) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Differential mechanical disc brakes |
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Notes | The stout Case LA was often a candidate for re-powering with a Detroit Diesel 3-71 engine. |
| Built in | Racine, Wisconsin, USA |
| Total built | 35,493 |
| Years produced | 1940 - 1953 |
Belt Pulley
| RPM | 814 |
|---|---|
| Speed | 2770 ft/min (844.30 meters/min) |
| Width | 8.25 inches (20 cm) |
| Diameter | 13 inches (33 cm) |
Transmission
| Type | unsynchronized gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | mechanical wet disc |
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 |
Power Take-off (PTO)
| Rear PTO Type | 550 |
|---|