David Brown 50TD agricultural crawler: review and specs

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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