Introduction
David Brown Cropmaster Diesel (1949-1953)
The David Brown Cropmaster Diesel is a utility tractor produced between 1949 and 1953. Designed for versatility in agricultural operations, it represents a standard configuration for mid-century utility tractors, featuring a liquid-cooled diesel engine and a 2WD drivetrain.
Engine and Performance
The tractor is powered by a 154 cubic-inch (2.5-liter) 4-cylinder diesel engine. It generates 34 horsepower (25.4 kW) at a rated speed of 1800 RPM. The engine cooling is managed by a liquid system, and the unit features a compression ratio of 15.9:1, ensuring consistent power delivery for standard field duties.
Transmission and Drivetrain
The Cropmaster Diesel offers flexible gear selection through two main configurations: a 4-speed transmission with one reverse gear, or a 6-speed transmission featuring three gears across two ranges (low/high) plus two reverse gears. Both options utilize a dry disc clutch for engagement, transmitting power to a two-wheel drive system.
Mechanical and Hydraulic Systems
The tractor is operated from an open station. Steering is handled via a manual system, while stopping power is provided by mechanical drum brakes. For implement attachment, it is equipped with a Category I rear hitch, allowing for the operation of compatible mounted agricultural tools.
Dimensions and Chassis
With a wheelbase of 71.5 inches (181 cm) and a total length of 111.75 inches (283 cm), the machine has a base weight of 2,950 lbs (1,338 kg). It provides a ground clearance of 16 inches (40 cm). The front tread is adjustable between 49.3 and 62.1 inches, and the rear tread between 48 and 67.5 inches, facilitating operation in various row-crop configurations.
Conclusion
The David Brown Cropmaster Diesel is a robust utility tractor suited for general agricultural tasks. Its combination of a 34-horsepower diesel engine, selectable gear ratios, and adjustable tread widths makes it a practical choice for small to medium-scale farming operations from the post-war era.
Production Information of David Brown, Cropmaster Diesel
- Utility tractor
| Manufacturer | David Brown |
|---|
Dimension and Tires Information of David Brown, Cropmaster Diesel
| Front tread | 49.3 to 62.1 inches [125 to 157 cm] |
|---|---|
| Wheelbase | 71.5 inches [181 cm] |
| Weight | 2950 lbs [1338 kg] |
| Height | 55.25 inches [140 cm] |
| Length | 111.75 inches [283 cm] |
| Rear tread | 48 to 67.5 inches [121 to 171 cm] |
| Ground clearance | 16 inches [40 cm] |
| Width | 60.625 inches [153 cm] |
| Ag front | 6.00-19 |
|---|---|
| Ag rear | 42x10 steel |
| Ag rear | 9.00-28 |
| Ag front | 26x5 steel |
Engine Specifications of David Brown, Cropmaster Diesel
- David Brown
- Liquid-cooled
- Diesel
- 4-cylinder
| Power | 34 hp [25.4 kW] |
|---|---|
| Displacement | 154 ci [2.5 L] |
| Compression | 15.9:1 |
| Bore/Stroke | 3.50x4.00 inches [89 x 102 mm] |
| Idle RPM | 700-1800 |
| Rated RPM | 1800 |
Transmission Information of David Brown, Cropmaster Diesel
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | Dry disc |
Transmission variants 2
- Three gears (1-3) plus reverse (R) in two ranges (low/high).
| Type | Gear |
|---|---|
| Gears | 6 forward and 2 reverse |
| Clutch | Dry disc |
- 4-speed gear
- 6-speed gear
Mechanical Specs of David Brown, Cropmaster Diesel
- Two-wheel drive
- Open operator station.
- Mechanical drum brakes
| Steering | Manual |
|---|
Power Information of David Brown, Cropmaster Diesel
| Engine | 34 hp [25.4 kW] |
|---|
Three-Point Hitch of David Brown, Cropmaster Diesel
| Rear Type | I |
|---|
Where it sits
With 34 HP, the David Brown Cropmaster Diesel sits between 25 (32 HP) and 850 (35 HP) in David Brown's range. Its power puts it in the 52th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the David Brown Cropmaster Diesel have?
The David Brown Cropmaster Diesel delivers 34 HP.
What years was the David Brown Cropmaster Diesel produced?
The David Brown Cropmaster Diesel was produced in 1949-1953.
What engine does the David Brown Cropmaster Diesel have?
The David Brown Cropmaster Diesel is powered by a Diesel, 4-cylinder engine.
What transmission does the David Brown Cropmaster Diesel use?
The David Brown Cropmaster Diesel uses a Gear transmission.
How much does the David Brown Cropmaster Diesel weigh?
The David Brown Cropmaster Diesel weighs 2950 lbs [1338 kg].
Is the David Brown Cropmaster Diesel 4WD?
The David Brown Cropmaster Diesel is available in 2WD.