Case industrial tractors
J.I. Case LAI
The J.I. Case LAI is an industrial tractor produced from 1941 to 1952 by J.I. Case in Racine, Wisconsin, USA. It features a 6.6L 4-cylinder engine available in gasoline, tractor fuel, and LP gas variants. The tractor has a 4-speed unsynchronized gear transmission with 4 forward and 1 reverse gears. It delivers a claimed belt power of 58 hp (43.3 kW) and includes two-wheel drive, manual steering, and differential mechanical disc brakes. The LAI has an open operator station and a rear PTO type 550. It weighs 7515 lbs (3408 kg) operating weight and 10860 lbs (4926 kg) ballasted. The belt pulley diameter is 13 inches (33 cm) with a width of 8.25 inches (20 cm), running at 814 RPM and a speed of 2770 ft/min (844.30 meters/min). The LAI is an industrial variant related to the farm LA model and succeeded the J.I. Case LI model produced from 1929 to 1940.
Power-
Founded-
ModelLAI
Technical Specifications
Detailed specifications and technical data for J.I. Case LAI
Power
| Belt (claimed) | 58 hp (43.3 kW) |
|---|
Engine
| LP gas engine | 4-cylinder, liquid-cooled, displacement 403.2 ci (6.6 L), bore/stroke 4.625x6.00 inches (117 x 152 mm), oil bath air cleaner, compression 7.58:1, rated RPM 1150, firing order 1-3-2-4 |
|---|---|
| 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 |
| Gasoline engine | 4-cylinder, liquid-cooled, displacement 403.2 ci (6.6 L), bore/stroke 4.625x6 inches (117 x 152 mm), oil bath air cleaner, 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 |
| Tractor fuel engine | 4-cylinder, liquid-cooled, displacement 403.2 ci (6.6 L), bore/stroke 4.625x6 inches (117 x 152 mm), oil bath air cleaner, 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), exhaust valve clearance 0.018 inches (0.457 mm) |
Variants
| LA | farm |
|---|---|
| LAI | industrial |
Dimensions
| 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 | Industrial tractor |
|---|---|
| Built in | Racine, Wisconsin, USA |
| Total built | 6125 |
| Manufacturer | J.I. Case |
| Years produced | 1941 - 1952 |
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 |
Power Take-off (PTO)
| Rear PTO Type | 550 |
|---|
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