Wikitractor

David Brown 850

Production ended · 2WD

PTO power · claimed

33 hp

Weight
4,094 lb
Engines
2 Diesel · Gasoline
Built
no record
Price new
no record

Power

Engine35 hp unspecified
PTO33 hp claimed
PTO, tested33.6 hp
Drawbar30 hp claimed
Drawbar, tested30.9 hp
Listed power35 hp engine basis

Engines

David Brown 2.5L 4-cyl dieselDiesel · 4 cyl154 ci
David Brown 2.5L 4-cyl gasolineGasoline · 4 cyl154 ci
Engine details
David Brown 2.5L 4-cyl diesel
Bore × stroke
3.5 in × 4 in
Rated speed
2,000 rpm
Rated power
35 hp
Compression
17:1
Cooling
liquid-cooled
David Brown 2.5L 4-cyl gasoline
Bore × stroke
3.5 in × 4 in
Rated speed
2,000 rpm
Compression
6.25:1
Cooling
liquid-cooled

Transmissions

6-speed unsynchronized gearunsynchronized gear6F / 2R
Transmission notes

6-speed unsynchronized gear: Three gears (1-3) plus reverse (R) in two ranges (low and high).

Weight

Weight4,094 lb operating; Gas
Shipping3,750 lb
Ballasted5,874 lb

Dimensions

Wheelbase75.2 in
Length113.5 in

Capacities

Fuel tank10.6 gal

Hydraulics

Pump flowno record

Hitch

Rear hitch categoryI
Rear lift capacityno record

PTO

Rear PTOtransmission
Rear PTO speeds540/1000 (1.375)
Clutchdry disc
Engine rpm at PTO speed540@1800

Chassis

Drive2WD
SteeringManual steering
BrakesDifferential mechanical expanding shoe brakes
Final drivesspur gear
CabOpen operator station

Tires

Front5.00-15
Rear10-28

Production

FactoriesMeltham Mills, Huddersfield, England
Built byDavid Brown