David Brown 3800 Selectamatic Specs & Features

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David Brown 3800 Selectamatic Technical Specifications

David Brown 3800 Selectamatic is a Row-Crop tractor that was produced by the John Deere between 1968 – 1971.

Below you will find detailed technical specifications for David Brown 3800 Selectamatic covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

David Brown 3800 Selectamatic Production

Manufacturer:
Manufacturer:	David Brown
Type:	Utility tractor
Factory:	Meltham Mills, Huddersfield, England
Original price:	$4,000 (1971)

David Brown 3800 Selectamatic Mechanical

Chassis:

4×2 2WD

Final drives:

spur gear

Differential lock:

rear diff lock standard

Steering:

manual

power-assist optional

Brakes:

mechanical shoe

Cab:

Open operating station.

Transmissions:

6-speed gear

12-speed gear

Capacity

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

Hydraulics

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

Tracktor Hitch

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

Power Take-off (PTO)

Rear PTO:	live
Rear RPM:	540/1000

David Brown 3800 Selectamatic Engine detail

Engine Detail
David Brown
gasoline
3-cylinder
liquid-cooled
Displacement:	146.1 ci 2.4 L
Bore/Stroke:	3.939×4.000 inches 100 x 102 mm
Air cleaner:	oil bath
Compression:	6.75:1
Rated RPM:	2200
Operating RPM:	700-2200
Torque:	115 lb-ft 155.9 Nm
Torque RPM:	1400
Starter volts:	12
Oil capacity:	6.75 qts 6.4 L
Coolant capacity:	9 qts 8.5 L

David Brown 3800 Selectamatic Transmission overview

Engine Oil

Type:	gear
Gears:	6 forward and 2 reverse
Clutch:	dry disc
Oil capacity:	24 qts 22.7 L

David Brown 3800 Selectamatic Dimensions

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

David Brown 3800 Selectamatic Tests

Nebraska Tractor Test 1018

Nebraska Tractor Test 1018
Gasoline 6-speed 2WD September 2 – 11, 1969 Link: Nebraska Tractor Test 1018 file
PTO performance
Power at rated engine speed:	39.16 hp 29.2 kW
Fuel use:	3.6 gal/hour 13.6 l/hour
Power at rated PTO speed:	37.24 hp 27.8 kW
Fuel use:	3.3 gal/hour 12.5 l/hour
Drawbar performance
Max power:	32.13 hp 24.0 kW
Fuel use:	3.4 gal/hour 12.9 l/hour
Gear 3 used for power test.
Max pull:	4419 lbs 2004 kg
Gear 1 used for pull test.

FAQ

Is David Brown 3800 Selectamatic a good tractor?

The David Brown 3800 Selectamatic is one of the great tractors in the David Brown stable, and it has earned David Brown a fantastic reputation.

How much oil does a David Brown 3800 Selectamatic take?

Check out the David Brown 3800 Selectamatic oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year David Brown made the 3800 Selectamatic?

The David Brown 3800 Selectamatic was an agricultural tractor model made from 1968 – 1971