| Manufacturer | Chamberlain |
| Price | - |
| Model | Countryman |
| Equipment Type | Standard-Tread Tractors |
| Factory | Welshpool, Australia |
VARIANTS
| MkI | 1958-1959 |
| MkII | 1960 |
| MkIII | 1961-1962 |
CHAMBERLAIN COUNTRYMAN POWER
| Engine | 76hp / 56.7kW |
| Drawbar (claimed) | 60hp / 44.7kW |
| Belt (claimed) | 67hp / 50.0kW |
ENGINE DETAIL
The Chamberlain Countryman tractor, powered by the Meadows 4DC330 diesel engine, features a robust 332ci displacement with a 76hp output at 1800 RPM, making it suitable for moderate agricultural tasks. With a compression ratio of 16:1 and a square bore and stroke (120mm), it offers efficient thermal management and balance, resulting in reliable torque delivery. However, the relatively high compression may necessitate precise fuel quality for optimal performance, posing a challenge in regions with lower-grade diesel fuels.
| Description | Meadows 4DC330 diesel 4-cylinder liquid-cooled |
| Displacement | 332ci / 5.4L |
| Bore/Stroke | 4.724x4.724inches / 120x 120mm |
| Power | 76hp / 56.7kW |
| Compression | 16:1 |
| Rated RPM | 1800 |
| Starter volts | 12 |
CHAMBERLAIN COUNTRYMAN ENGINE
The Chamberlain Countryman tractor features a robust Meadows 5.4L 4-cylinder diesel engine, providing substantial torque and reliability for agricultural applications. With a generous fuel capacity of 28.2 gallons (106.7 liters), it offers extended operating time, ideal for large-scale operations. However, the considerable weight and size may present maneuverability challenges in tighter spaces or uneven terrain.
| Description | Meadows 5.4L 4-cyl diesel |
| Fuel tank | 28.2gal / 106.7L |
TRANSMISSION
The Chamberlain Countryman tractor features a gear type transmission with 9 forward and 3 reverse gears, enabling versatile operation across varied terrains. The 355.6mm dry disc clutch enhances engagement reliability, although it may require more maintenance than wet clutches under heavy use. This setup is advantageous for agricultural tasks that demand precise speed control, but operators should be aware of potential challenges in quick gear changes compared to modern syncromesh systems.
| Type | gear |
| Gears | 9 forward and 3 reverse |
| Clutch | 355.6mm dry disc |
| Description | Three gears, plus reverse, in three ranges |
SPEEDS
| Description | With 15x30 rear tires |
MECHANICAL
The Chamberlain Countryman tractor's 4x2 2WD chassis offers simplicity and lower maintenance costs, ideal for light agricultural tasks but may struggle in adverse terrain. Its internal expanding brakes provide reliable stopping power, though they may require frequent adjustment for optimal performance. The 9-speed gear transmission enhances versatility in speed control, making it suitable for various applications, while the open operator station enhances visibility but may expose operators to harsh weather conditions.
| Chassis | 4x2 2WD |
| Brakes | internal expanding |
| Cab | Open operator station |
| Transmission | 9-speed gear |
HYDRAULICS
| Total flow | 7.7gpm / 29.1lpm (MkIII) |
POWER TAKE-OFF (PTO)
| Rear PTO | indepenent |
| Rear RPM | 540 (1.375) |
| Engine RPM | 540@1600 |
CHAMBERLAIN COUNTRYMAN TIRES
The Chamberlain Countryman tractor features an 8.25x20 front tire and a 15x30 rear tire configuration, providing a favorable torque distribution for enhanced agricultural operations. The larger rear tires offer improved traction and stability during heavy towing or plowing tasks, but may limit maneuverability in tighter spaces. Overall, this setup is advantageous for powering through tough terrains, but operators should be cautious of potential soil compaction caused by the heavier rear tire footprint.
| Ag front | 8.25x20 |
| Ag rear | 15x30 |
DIMENSIONS
| Wheelbase | 86.5inches / 219cm |
| Length | 146inches / 370cm |
| Width | 88inches / 223cm |
| Height (steering wheel) | 70.5inches / 179cm |
| Weight | 9000lbs / 4082kg |
| Ground clearance | 18inches / 45cm |
DIMENSIONS & TIRES
The Chamberlain Countryman tractor features a compact wheelbase of 86.5 inches (219 cm), enabling improved maneuverability in tight agricultural spaces. With a substantial weight of 9,000 lbs (4,082 kg) and rear tires measuring 15x30 inches, it offers excellent traction for heavier implements but may pose challenges in transportability and compaction of soil. The choice of front tires at 8.25x20 aids in maintaining stability; however, tire selection may require consideration based on specific terrain conditions.
| Wheelbase | 86.5inches / 219cm |
| Weight | 9000lbs / 4082kg |
| Front tire | 8.25x20 |
| Rear tire | 15x30 |
COUNTRYMAN SERIAL NUMBERS
| 1958 | 101 |
| 1959 | 1158 |
| 1960 | 1344 |
| 1961 | 1609 (Mk 3) |
| 1962 | 1828 (Mk 3) |
| Final | 2003 (Mk 3) |
BELT PULLEY
| Diameter | 10.25inches / 26cm |
| Width | 6.25inches / 15cm |
| Speed | 3100ft/min / 944.88meters/min |