The David Brown 50TD is a agricultural crawler manufactured by David Brown in Meltham Mills, Huddersfield, England from 1953 to 1958. The David Brown 50TD is equipped with a 4.1 L (248.1 cu·in) six-cylinder diesel engine and a gear-type transmission with dry disc clutch and 6 forward and 2 reverse gears.
The David Brown 50TD agricultural crawler used the David Brown engine. It is a 4.1 L, 4,065 cm2, (248.0 cu·in) six-cylinder natural aspirated diesel engine with 92.0 mm (3.62 in) of the cylinder bore and 102.0 mm (4.02 in) of the piston stroke. The compression ratio rating is 15.9:1. This engine produced 50.7 PS (37.3 kW; 50.0 HP) at 1,800 rpm of output power.
The David Brown 50TD is equipped with controlled differential steering, open operator station, and 66.0 liters (17.4 US gal.; 14.5 Imp. gal) fuel tank.
David Brown 50TD Specifications
| General Specifications | |
| Model | David Brown 50TD |
| Length | 3,070 mm (120.9 in) |
| Width | 1,800 mm (70.9 in) |
| Height | 1,420 mm (55.9 in) |
| Wheel base | – |
| Ground clearance | – |
| Weight | 2,025 kg (4,464 lbs) |
| Fuel tank capacity | 66.0 liters (17.4 US gal.; 14.5 Imp. gal) |
| Battery | 12V, 108Ah |
| Cabin type | Open operator station |
| Engine | |
| Engine model | David Brown |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 4.1 L, 4,065 cm2, (248.0 cu·in) |
| Bore and stroke | 92.0 mm X 102.0 mm (3.62 in X 4.02 in) |
| Compression ratio | 15.9:1 |
| Horsepower | 50.7 PS (37.3 kW; 50 HP) at 1,800 rpm |
| Starter | Electric |
| Oil capacity: | 13.6 L (14.4 US. qt, 12 Imp. qt.) |
| Coolant capacity: | 18.0 L (19 US. qt, 15.8 Imp. qt.) |
| Transmission and chassis | |
| Chassis | Crawler |
| Steering type | Controlled differential |
| Brakes | – |
| Transmission model | David Brown |
| Transmission type | Gear type with dry disc clutch |
| Gears | 6 forward and 2 reverse |
| Speed | Forward: 8.5 kmh (5.3 mph) Reverse: 4.2 (2.6 mph) |
| Transmission oil capacity | 54.0 L (14.3 US. gal, 11.9 Imp. gal.) |
| Tracks | |
| Standard | 14-inch tracks |
| Optional | 16-inch tracks, 18-inch tracks |
| PTO (Power take-off shaft) | |
| Rear PTO type | – |
| Rear PTO speed | 540 rpm |
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