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David Brown 3800 Selectamatic

David Brown 3800 Selectamatic tractor
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The David Brown 3800 Selectamatic is a utility tractor produced from 1968 to 1971 in Meltham Mills, Huddersfield, England. It features a 2.4L 3-cylinder liquid-cooled gasoline engine, with estimated engine power around 43.3 hp. The tractor offers transmission options of 6-speed or 12-speed gearboxes with dry disc clutch. It has a PTO power of about 39 hp and drawbar tested power of 32.13 hp. The hydraulics system is Selectamatic type with 6 gallons capacity and 2000 psi pressure. The tractor has two-wheel drive with manual steering and optional power assist. Dimensions include a 76 inch wheelbase, 115.625 inch length, and operating weight of 3885 lbs. It uses agricultural tires sized 6.00-16 front and 13.6/12-28 rear. The tractor hitch is type I with position and draft control and rear lift capacity of 1600 lbs working weight.
David Brown 3800Selectamatictractorutility tractorengine specstransmissionPTOhydraulicsdimensionsDavid Brown tractors
Power43 hp[P]
Founded1968 - 1971
Model3800

Technical Specifications

Detailed specifications and technical data for David Brown 3800 Selectamatic

Power

PTO (tested):39.16 hp (29.2 kW)
PTO (claimed):39 hp (29.1 kW)
Drawbar (tested):32.13 hp (24.0 kW)

Tires

Ag rear:13.6/12-28, 14.9/13-28
Ag front:6.00-16, 14.9/13-24

Engine

Make:David Brown
Type:gasoline
Torque:115 lb-ft (155.9 Nm)
Cooling:liquid-cooled
Cylinders:3-cylinder
Rated RPM:2200
Torque RPM:1400
Air cleaner:oil bath
Bore/Stroke:3.939x4.000 inches (100 x 102 mm)
Displacement:146.1 ci (2.4 L)
Oil capacity:6.75 qts (6.4 L)
Operating RPM:700-2200
Starter volts:12
Coolant capacity:9 qts (8.5 L)
Compression ratio:6.75:1

Capacity

Fuel:9.5 gal (36.0 L)
Hydraulic system:6 gal (22.7 L)

Dimensions

Width:64.5 inches (min) (163 cm)
Length:115.625 inches (293 cm)
Wheelbase:76 inches (193 cm)
Rear tread:48 to 76 inches (121 to 193 cm), 60 to 80 inches (152 to 203 cm) (PAVT)
Front tread:48 to 72 inches (121 to 182 cm)
Height (hood):51.25 inches (130 cm)
Ballasted weight:5835 lbs (2646 kg)
Operating weight:3885 lbs (1762 kg)
Clearance (drawbar):11.75 inches (29 cm)
Clearance (front axle):17.5 inches (44 cm)

Hydraulics

Type:Selectamatic
Capacity:6 gal (22.7 L)
Pressure:2000 psi (137.9 bar)
Pump flow:7.3 gpm (27.6 lpm)

Mechanical

Drive:Two-wheel drive
Brakes:Mechanical shoe brakes
Steering:manual, power-assist optional
Final drives:spur gear
Differential lock:rear diff lock standard
Operating station:Open operating station

Production

Type:Utility tractor
Built in:Meltham Mills, Huddersfield, England
Original price:$4,000 (1971)
Years produced:1968 - 1971

Transmission

Type:gear
Clutch:dry disc
Oil capacity:24 qts (22.7 L)
Gears (option 1):6 forward and 2 reverse
Gears (option 2):12 forward and 4 reverse

Tractor hitch

Control:position and draft control
Rear Type:I
Rear lift (static):1950 lbs (884 kg)
Rear lift (working):1600 lbs (725 kg)

Power Take-off (PTO)

Rear PTO:live
Rear PTO Type:540/1000

Related Models

David Brown 4600

Model:4600