Overview
The J.I. Case DC is a row-crop farm tractor manufactured in Racine, Wisconsin, from 1939 to 1953 in both narrow-front (DC-3) and wide-front (DC-4) configurations. It is equipped with a 4.3L four-cylinder engine and a four-speed gear transmission, utilizing a mechanical wet disc clutch and the Case Eagle Hitch system. Nebraska Tractor Test 340 recorded the model producing 37.28 hp at the belt and 33.06 hp at the drawbar.
Ideal Applications
Tested Drawbar and Belt Performance:
Nebraska Tractor Test 340 recorded a maximum drawbar pull of 4,128 lbs and a maximum belt power of 37.28 hp while operating at a fuel consumption rate of 3.4 gallons per hour.
Engine and Mechanical Specifications:
The tractor features a 259.5 ci liquid-cooled engine rated at 1100 RPM, a 6-volt negative ground electrical system, and a continuous 540 RPM rear PTO.
Chassis and Variant Dimensions:
The DC series includes the DC-3 with an 88.875-inch wheelbase and the DC-4 with a 74.5-inch wheelbase, both sharing a total weight of 5,300 lbs and a rear tread width adjustable up to 84 inches.
Production
| Description | Row-Crop tractor / Built in Racine, Wisconsin, USA / Original price was $2,600 in 1955 / DC series is two models, the DC-3 narrow front and the DC-4 wide front |
|---|---|
| Manufacturer | J.I. Case |
| Total built | 54,925 (DC-3) |
Engine
| Air cleaner | oil bath |
|---|---|
| Bore/Stroke | 3.875x5.50 inches (98 x 140 mm) / 3.875x5.50 inches (98 x 140 mm) |
| Compression | 5.58:1 |
| Coolant capacity | 26 qts (24.6 L) |
| Description | J.I. Case / gasoline / 4-cylinder / liquid-cooled / J.I. Case / LP gas / 4-cylinder / liquid-cooled |
| Displacement | 259.5 ci (4.3 L) / 259.5 ci (4.3 L) |
| Rated RPM | 1100 |
| Starter volts | 6 / 6 |
| Engine type | J.I. Case 4.3L 4-cyl gasoline / J.I. Case 4.3L 4-cyl LP gas |
| Aux. fuel | 2 gal (7.6 L) |
| Engine type | J.I. Case 4.3L 4-cyl gasoline / J.I. Case 4.3L 4-cyl LP gas |
| Gas Fuel tank | 19 gal (71.9 L) |
| Belt (tested) | 37.28 hp (27.8 kW) |
| Drawbar (claimed) | 33 hp (24.6 kW) |
| Drawbar (tested) | 33.06 hp (24.7 kW) |
| Plows | 3 |
| PTO (claimed) | 37 hp (27.6 kW) |
Transmission
| Clutch | mechanical wet disc |
|---|---|
| Gears | 4 forward and 1 reverse |
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
Hitch
| Type | Case Eagle Hitch |
|---|
PTO
| Rear PTO | continuous |
|---|---|
| Rear PTO Type | 540 |
Electrical
| Battery volts | 6 |
|---|---|
| Charging system | generator |
| Ground | negative |
Dimensions & Tires
| Clearance (rear axle) | 24.75 inches (62 cm) |
|---|---|
| DC3 Length | 144 inches (365 cm) |
| DC3 Wheelbase | 88.875 inches (225 cm) |
| DC4 Clearance (front axle) | 14 inches (35 cm) |
| DC4 Length | 130 inches (330 cm) |
| DC4 Wheelbase | 74.5 inches (189 cm) |
| Front tread | 9.5 to inches (24 to 0 cm) |
| Height (hood) | 58 inches (147 cm) |
| Rear tread | 48 to 84 inches (121 to 213 cm) |
| Weight | 5300 lbs (2404 kg) |
| Width | 80.75 inches (205 cm) |
| DC3 Wheelbase | 88.875 inches (225 cm) |
| DC4 Wheelbase | 74.5 inches (189 cm) |
| Front tire | 5.50-16 |
| Rear tire | 11.25-36 |
| Weight | 5300 lbs (2404 kg) |
| Ag front | 5.50-16 / 25x4 (steel) |
| Ag rear | 11.25-36 / 48x2.50 (steel) |
Belt Pulley
| Diameter | 12.25 inches (31 cm) |
|---|---|
| RPM | 818 |
| Speed | 2620 ft/min (798.58 meters/min) |
| Width | 7.25 inches (18 cm) |
DC Serial Number Location
| Description | Serial number plate on the DC's instrument panel, above the steering shaft. |
|---|
DC Serial Numbers
| 1939 | 4300001 |
|---|---|
| 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 / 8300001 |
| Description | FAQ: How to read a serial number table. |
Nebraska Tractor Test 340
| Belt fuel use (max) | 3.4 gal/hour (12.9 l/hour) |
|---|---|
| Belt power (max) | 37.28 hp (27.8 kW) |
| Description | Gasoline 4-speed 2WDApril 18 - May 4, 1940Link: Nebraska Tractor Test 340 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 33.06 hp (24.7 kW) |
| Max pull | 4,128 lbs (1872 kg) |
References
| Description | Case Eagle Hitch Tractors published in 1953, by J.I. Case |
|---|
Speeds
| Description | With 9.00-36 rear tires. |
|---|
Variants
| D | standard-tread |
|---|---|
| DC | row-crop |
| DC-3 | narrow front |
| DC-4 | wide-front |
| DH | wide-front without turning brakes |