| Manufacturer |
Case |
| Price |
2,600(USD) |
| Model |
DC |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Racine, Wisconsin, USA |
VARIANTS
| DC-3 |
narrow front |
| DC-4 |
wide-front |
| DH |
wide-front without turning brakes |
NEBRASKA TRACTOR TEST 340 2
| Description |
Gasoline 4-speed 2WD April 18 - May 4, 1940 Link: Nebraska Tractor Test 340 file Drawbar performance Gear 2 used for power test Gear 1 used for pull test |
| Belt power (max) |
37.28hp / 27.8kW |
| Belt fuel use (max) |
3.4gal/hour / 12.9l/hour |
| Max power |
33.06hp / 24.7kW |
| Max pull |
4,128lbs / 1872kg |
J.I. CASE DC POWER
| Drawbar (claimed) |
33hp / 24.6kW |
| PTO (claimed) |
37hp / 27.6kW |
| Plows |
3 |
| Drawbar (tested) |
33.06hp / 24.7kW |
| Belt (tested) |
37.28hp / 27.8kW |
ENGINES OVERVIEW
The Case DC tractor is equipped with either a 4.3L 4-cylinder gasoline or liquid propane (LP) gas engine, providing versatility in fuel choice. The gasoline variant offers higher functional power under typical load conditions, while the LP version provides cleaner emissions and reduced fuel volatility, making it environmentally friendlier. A challenge with the LP model can be the availability of refueling infrastructure, although it may lead to lower operational costs in agricultural applications.
| Description |
J.I. Case 4.3L 4-cyl gasoline J.I. Case 4.3L 4-cyl LP gas |
ENGINE DETAIL 1
The Case DC tractor features a robust 4-cylinder liquid-cooled gasoline engine with a displacement of 4.3L and a moderate compression ratio of 5.58:1, which may limit power but enhances reliability and fuel efficiency. With a bore and stroke of 98mm x 140mm, this configuration aids in torque delivery at low RPMs, making it suitable for heavy-duty operations such as plowing. However, the oil bath air cleaner requires regular maintenance to ensure optimal performance and reduce engine wear over time.
| Description |
J.I. Case gasoline 4-cylinder liquid-cooled |
| Displacement |
259.5ci / 4.3L |
| Bore/Stroke |
3.875x5.50inches / 98x 140mm |
| Air cleaner |
oil bath |
| Compression |
5.58:1 |
| Rated RPM |
1100 |
| Coolant capacity |
26qts / 24.6L |
ENGINE DETAIL 2
The Case DC tractor features a 4-cylinder LP gas engine with a 259.5ci (4.3L) displacement, emphasizing fuel efficiency and lower emissions compared to gasoline engines. Its bore and stroke measurements (3.875 x 5.50 inches) indicate a torque-oriented design, making it suitable for tasks requiring substantial pulling power. The liquid-cooled system ensures optimal operating temperatures, enhancing longevity but may introduce challenges related to maintenance of the cooling system.
| Description |
J.I. Case LP gas 4-cylinder liquid-cooled |
| Displacement |
259.5ci / 4.3L |
| Bore/Stroke |
3.875x5.50inches / 98x 140mm |
J.I. CASE DC ENGINES
The Case DC tractor offers a robust 4.3L four-cylinder engine in both gasoline and LP gas configurations, providing flexibility in fuel choice. The gasoline variant features a larger fuel tank capacity of 19 gallons, which is beneficial for extended operation without refueling, while the LP version holds 17 gallons, making it slightly less efficient for longer tasks. An auxiliary fuel tank of 2 gallons enhances operational versatility, but operators should consider fuel availability and performance implications when selecting between fuel types.
| Description |
J.I. Case 4.3L 4-cyl gasoline J.I. Case 4.3L 4-cyl LP gas |
| Gas Fuel tank |
19gal / 71.9L 17gal / 64.3L (distillate) |
| Aux. fuel |
2gal / 7.6L |
TRANSMISSION
The Case DC tractor features a 4-speed forward and 1-speed reverse gear configuration, optimizing its versatility for various field operations. The mechanical wet disc clutch provides effective engagement and smooth operation, but may require more maintenance compared to dry clutches under heavy usage. This setup is ideal for moderate agricultural tasks, offering an excellent balance between power transmission and ease of operation.
| Type |
gear |
| Gears |
4 forward and 1 reverse |
| Clutch |
mechanical wet disc |
SPEEDS
| Description |
With 9.00-36 rear tires |
MECHANICAL
The Case DC tractor features a 4x2 2WD chassis, which provides good maneuverability for light-duty applications but may limit traction on uneven terrain. The manual steering system is straightforward and cost-effective, yet can be demanding during prolonged operation or when navigating tight spaces. The 4-speed gear transmission allows for reasonable speed control, although it may not offer the versatility of a multi-range gearbox, potentially restricting its performance in varied field conditions.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station |
| Transmission |
4-speed gear |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
continuous/live*After 1953 |
| Rear RPM |
540 |
J.I. CASE DC TIRES
The Case DC tractor features a robust agricultural front tire size of 25x4 and rear tire size of 48x2.50, both made of steel, providing enhanced durability and load-bearing capacity. The larger rear tire diameter improves traction and stability on uneven terrain, which is advantageous for heavy-duty agricultural applications. However, the steel construction may result in harsher ride quality and less flexibility compared to rubber options, affecting operator comfort over extended use.
| Ag front |
25x4 (steel) |
| Ag rear |
48x2.50 (steel) |
DIMENSIONS
| DC3 Wheelbase |
88.875inches / 225cm |
| DC4 Wheelbase |
74.5inches / 189cm |
| DC3 Length |
144inches / 365cm |
| DC4 Length |
130inches / 330cm |
| Width |
80.75inches / 205cm |
| Height (hood) |
58inches / 147cm |
| Weight |
5300lbs / 2404kg |
| DC4 Clearance (front axle) |
14inches / 35cm |
| Clearance (rear axle) |
24.75inches / 62cm |
| Front tread |
9.5inches / 24cm |
| Rear tread |
48 to 84inches / 121to 213cm |
DIMENSIONS & TIRES
The Case DC3 tractor, with a wheelbase of 88.875 inches, offers greater stability and better weight distribution for heavy-duty towing and field work compared to the compact DC4 with a 74.5-inch wheelbase, which may provide increased maneuverability in tighter spaces. Weighing 5,300 lbs and equipped with larger rear tires (11.25-36), it excels in traction and can handle rugged terrain, though it may present challenges in transportability and fuel efficiency. Selecting the appropriate model will depend on whether the priority is for heavy hauling or versatility in confined areas.
| DC3 Wheelbase |
88.875inches / 225cm |
| DC4 Wheelbase |
74.5inches / 189cm |
| Weight |
5300lbs / 2404kg |
| Front tire |
5.50-16 |
| Rear tire |
11.25-36 |
DC SERIAL NUMBERS
| Location |
Serial number plate on the DC's instrument panel, above the steering shaft |
| 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 |
BELT PULLEY
| Diameter |
12.25inches / 31cm |
| Width |
7.25inches / 18cm |
| RPM |
818 |
| Speed |
2620ft/min / 798.58meters/min |
