Tractorpedia.com

J.I. Case LA

J.I. Case LA tractor
View Images
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.
J.I. Case LACase LA tractorfarm tractor6.6L engine4-speed transmissiontractor specificationsagricultural tractor
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

Cooling:liquid-cooled
Cylinders:4-cylinder
Fuel type:LP gas
Rated RPM:1150
Air cleaner:oil bath
Bore/Stroke:4.625x6.00 inches (117 x 152 mm)
Compression:7.58:1
Displacement:403.2 ci (6.6 L)
Firing order:1-3-2-4
Manufacturer:J.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

Cooling:liquid-cooled
Cylinders:4-cylinder
Fuel type:gasoline
Rated RPM:1100
Air cleaner:oil bath
Bore/Stroke:4.625x6.00 inches (117 x 152 mm)
Compression:4.83:1
Displacement:403.2 ci (6.6 L)
Firing order:1-3-4-2
Manufacturer:J.I. Case
Oil capacity:15 qts (14.2 L)
Sparkplug gap:0.030 inches (0.762 mm)
Starter volts:6
Coolant capacity:61 qts (57.7 L)
Intake valve clearance:0.018 inches (0.457 mm) Cold
Exhaust valve clearance:0.018 inches (0.457 mm) Cold

Details tractor fuel

Cooling:liquid-cooled
Cylinders:4-cylinder
Fuel type:tractor fuel
Rated RPM:1100
Air cleaner:oil bath
Bore/Stroke:4.625x6 inches (117 x 152 mm)
Compression:4.09 : 1
Displacement:403.2 ci (6.6 L)
Firing order:1-3-2-4
Manufacturer:J.I. Case
Oil capacity:15 qts (14.2 L)
Sparkplug gap:0.030 inches (0.762 mm)
Starter volts:6
Intake valve clearance:0.018 inches (0.457 mm)
Exhaust valve clearance:0.018 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