Equipment

Brands

David Brown 850 Tractor (1960-1965)

Manufacturer:

David Brown

Price:

N/A

Series:

Model:

850

Factory:

Meltham Mills, Huddersfield, England

Full Specifications

NEBRASKA TRACTOR TEST 734

Description

Diesel 6-speed 2WD/March 12 - 26, 1960/Link: Nebraska Tractor Test 734 file/PTO performance/Drawbar performance/Gear 3 used for power test.

Power at rated engine speed

33.56 hp/25.0 kW

Fuel use

2.3 gal/hour/8.7 l/hour

Power at rated PTO speed

28.24 hp/21.1 kW

Max power

30.93 hp/23.1 kW

NEBRASKA TRACTOR TEST 735

Description

Gasoline 6-speed 2WD/March 14 - April 2, 1960/Link: Nebraska Tractor Test 735 file/PTO performance/Drawbar performance/Gear 3 used for power test.

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

Max power

27.64 hp/20.6 kW

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

ENGINES OVERVIEW

Description

David Brown 2.5L 4-cyl diesel/David Brown 2.5L 4-cyl gasoline

ENGINE DETAIL 1

Description

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 2

Description

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

DAVID BROWN 850 ENGINES

Description

David Brown 2.5L 4-cyl diesel/David Brown 2.5L 4-cyl gasoline

Fuel tank

10.6 gal/40.1 L

TRANSMISSION

Type

unsynchronized gear

Gears

6 forward and 2 reverse

Clutch

dry disc

Description

Three gears (1-3) plus reverse (R) in two ranges (low and high).

SPEEDS

Description

With 10-28 rear tires./

MECHANICAL

Chassis

4x2 2WD

Final drives

spur gear

Steering

manual

Brakes

differential mechanical expanding shoe

Cab

Open operator station.

Transmission

6-speed unsynchronized gear

TRACTOR HITCH

Rear Type

I

POWER TAKE-OFF (PTO)

Rear PTO

transmission/live

Clutch

dry disc

Rear RPM

540/1000 (1.375)

Engine RPM

540@1800/540@1100/1000@2000

DAVID BROWN 850 TIRES

Ag front

5.00-15

Ag rear

10-28

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

DAVID BROWN 850 WEIGHT

Shipping

3750 lbs/1701 kg

Gas Operating

4094 lbs/1857 kg

Diesel Operating

4179 lbs/1895 kg

Ballasted

5874 lbs/2664 kg

DIMENSIONS & TIRES

Wheelbase

75.25 inches/191 cm

Weight

3750 to 4179 pounds

Front tire

5.00-15

Rear tire

10-28