David Brown 850 tractor specifications

1960 - 1965

1960 - 1965 Utility tractor

Production

Production Manufacturer:David Brown
Type:Utility tractor
Factory:Meltham Mills, Huddersfield, England

David Brown 850 Power

David Brown 850 Power Engine:35 hp
26.1 kW
Drawbar (claimed):30 hp
22.4 kW
PTO (claimed):33 hp
24.6 kW
Drawbar (tested):30.93 hp
23.1 kW
PTO (tested):33.56 hp
25.0 kW
power test details ...

1960 - 1965

Utility tractor

Nebraska Tractor Test 734

Nebraska Tractor Test 734
Diesel 6-speed 2WD March 12 - 26, 1960 Link: Nebraska Tractor Test 734 file
PTO performance
Power at rated engine speed:	33.56 hp 25.0 kW
Fuel use:	2.2 gal/hour 8.3 l/hour
Power at rated PTO speed:	28.24 hp 21.1 kW
Fuel use:	1.7 gal/hour 6.4 l/hour
Drawbar performance
Max power:	30.93 hp 23.1 kW
Fuel use:	2.3 gal/hour 8.7 l/hour
Gear 3 used for power test.

Nebraska Tractor Test 735

Nebraska Tractor Test 735
Gasoline 6-speed 2WD March 14 - April 2, 1960 Link: Nebraska Tractor Test 735 file
PTO performance
Power at rated engine speed:	32.00 hp 23.9 kW
Fuel use:	3.0 gal/hour 11.4 l/hour
Power at rated PTO speed:	28.52 hp 21.3 kW
Fuel use:	2.6 gal/hour 9.8 l/hour
Drawbar performance
Max power:	27.64 hp 20.6 kW
Fuel use:	3.0 gal/hour 11.4 l/hour
Gear 3 used for power test.

David Brown 850 Engines

David Brown 850 Engines David Brown 2.5L 4-cyl diesel David Brown 2.5L 4-cyl gasoline Fuel tank:10.6 gal
40.1 L
Engine details ...

1960 - 1965

Utility tractor

Engines overview

Engines overview
David Brown 2.5L 4-cyl diesel
David Brown 2.5L 4-cyl gasoline

Engine Detail

Engine Detail
David Brown
diesel
4-cylinder
liquid-cooled
Displacement:	154 ci 2.5 L
Bore/Stroke:	3.50x4.00 inches 89 x 102 mm
Power:	35 hp 26.1 kW
Fuel system:	direct injection
Air cleaner:	oil bath
Compression:	17:1
Rated RPM:	2000
Idle RPM:	700-2000
Starter volts:	12
Oil capacity:	10.1 qts 9.6 L
Coolant capacity:	14.4 qts 13.6 L

Engine Detail

Engine Detail
David Brown
gasoline
4-cylinder
liquid-cooled
Displacement:	154 ci 2.5 L
Bore/Stroke:	3.50x4.00 inches 89 x 102 mm
Air cleaner:	oil bath
Compression:	6.25:1
Rated RPM:	2000
Starter volts:	12

Mechanical

Mechanical Chassis:4x2 2WD
Final drives:spur gear
Steering:manual
Brakes:differential mechanical expanding shoe
Cab:Open operator station.
Transmission:6-speed unsynchronized gear
Transmission details ...

1960 - 1965

Utility tractor

Transmission

Transmission
Type:	unsynchronized gear
Gears:	6 forward and 2 reverse
Clutch:	dry disc
Three gears (1-3) plus reverse (R) in two ranges (low and high).

Speeds

Speeds
With 10-28 rear tires.

Tractor hitch

Tractor hitch Rear Type:I

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:transmission
live*Optional
Clutch:dry disc
Rear RPM:540/1000 (1.375)
Engine RPM:540@1800
540@1100
1000@2000

Dimensions & Tires

Dimensions & Tires Wheelbase:75.25 inches
191 cm
Weight:3750 to 4179 pounds
Front tire:5.00-15
Rear tire:10-28
Full dimensions and tires ...

1960 - 1965

Utility tractor

David Brown 850 Tires

David Brown 850 Tires
Ag front:	5.00-15
Ag rear:	10-28

Dimensions

Dimensions
Wheelbase:	75.25 inches 191 cm
Length:	113.5 inches 288 cm
Height (hood):	51.75 inches 131 cm
Front tread:	52/56/60/64/68/72 inches 132/142/152/162/172/182 cm
Rear tread:	52/56/60/64/68/72 inches 132/142/152/162/172/182 cm