Introduction
David Brown Cropmaster Utility Tractor
Produced between 1947 and 1953, the David Brown Cropmaster is a two-wheel-drive utility tractor designed for general agricultural operations. It represents a significant post-war development in tractor utility, focusing on mechanical simplicity and operational versatility.
Engine and Performance
The tractor is powered by a David Brown 4-cylinder, liquid-cooled engine with a displacement of 154 cubic inches (2.5 liters). Designed to run on kerosene, it produces 25 horsepower (18.6 kW) at a rated speed of 2000 RPM. The engine features a bore/stroke ratio of 3.50 by 4.00 inches (89 x 102 mm).
Transmission and Drivetrain
The Cropmaster utilizes a dry disc clutch and offers two transmission configurations. The standard model features a 4-speed gearbox with 4 forward and 1 reverse gears. An optional 6-speed configuration provides 6 forward and 2 reverse gears, divided into two ranges (low and high) with three gears per range, allowing for greater speed control in field operations.
Chassis and Dimensions
The tractor has a wheelbase of 71.5 inches (181 cm) and an overall length of 111.75 inches (283 cm). With a total weight of 2950 lbs (1338 kg) and a ground clearance of 16 inches (40 cm), it is built to handle varied terrain. The front tread is adjustable from 49.3 to 62.1 inches, while the rear tread is adjustable from 48 to 67.5 inches, providing flexibility for different row-crop requirements.
Operator Station and Controls
The machine is equipped with an open operator station. Steering is manual, and braking is managed through mechanical drum brakes. It includes a Type I rear hitch, allowing for the attachment of various standard agricultural implements of the era.
Conclusion
The David Brown Cropmaster is a robust, lightweight utility tractor suited for small-to-medium farming applications. Its adjustable track widths and multiple transmission options make it a versatile tool for historical field work and general utility tasks.
David Brown Cropmaster Manuals & Documentation
Download the manuals and documentation available for the David Brown Cropmaster: repair and workshop manuals, operator's handbooks, spare-parts catalogs and technical leaflets — free PDF files.
Archive documentation provided for reference, hosted by Tractor-Info.
Production Information of David Brown, Cropmaster
- Utility tractor
| Manufacturer | David Brown |
|---|
Dimension and Tires Information of David Brown, Cropmaster
| 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
- David Brown
- Liquid-cooled
- Kerosene
- 4-cylinder
| Power | 25 hp [18.6 kW] |
|---|---|
| Displacement | 154 ci [2.5 L] |
| Rated RPM | 2000 |
| Bore/Stroke | 3.50x4.00 inches [89 x 102 mm] |
| Idle RPM | 600-2000 |
Transmission Information of David Brown, Cropmaster
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
- Two-wheel drive
- Open operator station.
- Mechanical drum brakes
| Steering | Manual |
|---|
Power Information of David Brown, Cropmaster
| Engine | 25 hp [18.6 kW] |
|---|
Three-Point Hitch of David Brown, Cropmaster
| Rear Type | I |
|---|
Where it sits
With 25 HP, the David Brown Cropmaster sits between 2D (14 HP) and 25 (32 HP) in David Brown's range. Its power puts it in the 30th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the David Brown Cropmaster have?
The David Brown Cropmaster delivers 25 HP.
What years was the David Brown Cropmaster produced?
The David Brown Cropmaster was produced in 1947-1953.
What engine does the David Brown Cropmaster have?
The David Brown Cropmaster is powered by a 4-cylinder engine.
What transmission does the David Brown Cropmaster use?
The David Brown Cropmaster uses a Gear transmission.
How much does the David Brown Cropmaster weigh?
The David Brown Cropmaster weighs 2950 lbs [1338 kg].
Is the David Brown Cropmaster 4WD?
The David Brown Cropmaster is available in 2WD.