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David Brown 850 Tractor

David Brown Tractor 850

Preview – the David Brown 850 Tractor

Meltham, England

Lubricants and Fluids: Quick View

Fuel -unknown-

3-Point Hitch

Rear Type: I

Power Take-off (PTO):

Rear RPMS: 540,1000

Dimensions & Tires:

Wheelbase: -unknown-
Weight: 4094 to 5874 pounds
Front tire: 5.50-16
Rear tire: 11-28

David Brown 850 Drawbar, Engine & PTO Power:

Engine (net): 35.00 hp 26.10 kW
Drawbar (claimed): 31.00 hp 23.12 kW
Drawbar (tested): 30.93 hp 23.06 kW
PTO (claimed) 34.00 hp 25.35 kW
PTO (tested): 33.56 hp 25.03 kW

Mechanical Descriptions

Chassis: 4×2 2WD
Steering: -unknown-
Brakes: differential mechanical
expanding shoe

David Brown 850 Engine: Diesel

Type: David Brown
Fuel/Aspiration. Diesel
Cylinders: 4
Valves -unknown-
Bore/Stroke: 3.5 inches x 4.0 inches
89 mm x 102 mm
Displacement: 154 ci 2.5 L
Power: 35 hp 26.1 kW
Cooling: Liquid
Air cleaner: Oil bath
Compression: 17:1
Rated RPMs: 2000
Starter Volts: 12

David Brown 850 Engine :Gasoline

Type: David Brown
Fuel/Aspiration: Gasoline
Cylinders: 4
Valves: -unknown-
Bore/Stroke: 3.50 inches x 4.00 inches
89 mm x 102 mm
Displacement: 154 ci 2.5 L
Cooling: Liquid
Air cleaner: Oil bath
Compression: 6.25:1
Rated RPMs: 2000
Starter Volts: 12

Transmission:

Gears: 6 forward and 2 reverse
Type: Unsynchronised
Oil Capacity: -unknown-

Average Dimensions:

Weight (Operating): Diesel 4179 lbs 1895 kg
Gas 4094 lbs 1857 kg
Weight (Ballasted): 5874 lbs 2664 kg
Wheelbase: -unknown-
Length: -unknown-
Width: -unknown-
Height: -unknown-

David Brown 850 Tires:

Ag front: 5.50-16
Ag rear: 11-28

Nebraska Tractor Test 734:

Test Date: March 12-26, 1960
Type: 6-Speed 2WD
Engine: diesel
PTO power (rated engine speed): 33.56 hp 25.0 kW
PTO fuel use (engine speed): 2.2 gal/hour 8.3 l/hour
PTO power (rated PTO speed): 28.24 hp 21.1 kW
PTO fuel use (PTO speed): 1.7 gal/hour 6.4 l/hour
Drawbar power (max): 30.93 hp 23.1 kW
Drawbar fuel use (max): 2.3 gal/hour 8.7 l/hour

Nebraska Tractor Test 735:

Test Date: March 14 – April 2, 1960
Type: 6-Speed 2WD
Engine: gasoline
PTO power (rated engine speed): 32.00 hp 23.9 kW
PTO fuel use (engine speed): 3.0 gal/hour 11.4 l/hour
PTO power (rated PTO speed): 28.52 hp 21.3 kW
PTO fuel use (PTO speed): 2.6 gal/hour 9.8 l/hour
Drawbar power (max): 27.64 hp 20.6 kW
Drawbar fuel use (max): 3.0 gal/hour 11.4 l/hour

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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