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David Brown 770-1200

69DB990
69DB1200
65DB880
65DB990halkileikkaus
69DB1200tehot
69DB990
69DB1200
65DB880
65DB990halkileikkaus
69DB1200tehot
Manufacturer
Models
David Brown 770 Selectamatic, David Brown 780 Selectamatic, David Brown 880 Selectamatic, David Brown 990 Selectamatic, David Brown 990 Selectamatic, David Brown 1200 Selectamatic, David Brown 1200 Selectamatic
Years
1965-71
Info

At the end of 1965, David Brown Implematics were replaced by white Selectamatics. The new series got its name from the upgraded hydraulics, which offered adjustment of working depth, position control, and use of external hydraulics with a single control lever. The smallest model in the lineup was the 36-horsepower 2.4-liter 770. Of the models imported to Finland, the 990’s 3.0-liter engine remained unchanged, but the 880’s displacement had increased to 2.7 liters. The SAE horsepower ratings in Finland were 48.5 and 58 hp. The power take-off also featured a 1000 rpm speed. The 990 had an 11-inch clutch instead of 10 inches. AS models featured a dual clutch allowing for a power take-off independent of the clutch and had 12+4 gears. The basic gearbox’s lowest speed was quite high. A problem with the lifting device was the small lifting range.

In spring 1967, the flagship of the lineup was introduced: the 67-horsepower (71 SAE) 1200 Selectamatic. The 3.6-liter four-cylinder engine had the same cylinder dimensions as the 3-cylinder 880. The transmission was more robust than that of the smaller models. The dual-clutch plates were 11 inches and power was controlled by a hand lever. Unlike the smaller models, the hydraulic pump was independent of the clutch. A dual pump was available for the hydraulics, increasing flow from 22.7 liters to 52 liters. The 1200’s power was increased by five horsepower the following year. Another new model in 1967 was the 780, in which the 2.7-liter engine from the 880 was installed in the lighter structure of the 770. The 780 was also not imported to Finland. In 1970, four-wheel-drive versions of the 990 and 1200 were introduced, but these were not imported to Finland either.

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Technical data
ModelDavid Brown 770 SelectamaticDavid Brown 780 SelectamaticDavid Brown 880 SelectamaticDavid Brown 990 SelectamaticDavid Brown 990 SelectamaticDavid Brown 1200 SelectamaticDavid Brown 1200 Selectamatic
Manufacturer nameDavid BrownDavid BrownDavid BrownDavid BrownDavid BrownDavid BrownDavid Brown
Imported to FinlandNoNoYesYesYesYesYes
Years1965-701967-711965-711965-681968-711967-681968-71
Engine modelDB AD3/49DB AD3/55DB AD3/55DB AD4/47DB AD4/49DB AD4/55DB AD4/55
Cyl/Turbo/Intercooler3334444
Displacement2400 cm³2695 cm³2695 cm³3045 cm³3195 cm³3592 cm³3592 cm³
Bore x stroke100×101,6 mm100×114,3 mm100×114,3 mm92,1×114,3 mm100×101,6 mm100×114,3 mm100×114,3 mm
Rated power36/2000 hp DIN/rpm46/2200 hp DIN/rpm46/2200 hp DIN/rpm55/2200 hp DIN/rpm55/2200 hp DIN/rpm67/2300 hp DIN/rpm72/2300 hp DIN/rpm
Torque-------
Gears6+2/12+46+2/12+46+2/12+46+2/12+46+2/12+46+2/12+46+2/12+4
Speeds in km/h3,2-24,83,2-26,24,3-29,23,3-26,03,3-28,0/ 1,6-31,04,0-23,74,0-23,7
Hydr. flow l/min22.7 l/min22.7 l/min22.7 l/min22.7 l/min28 l/min22,7 (52) l/min26 (52) l/min
Hydraulic pressure140 bar140 bar140 bar140 bar140 bar140 bar140 bar
Lift controlsmech.mech.mech.mech.mech.mech.mech.
Lift capacity900 kg1200 kg1200 kg1500 kg1500 kg1940/2080 kg1940/2080 kg
PTO speeds540540540/1000540/1000540/1000540/1000540/1000
Brakesdrum brakesdrum brakesdrum brakesdrum brakesdrum brakesdrum brakesdrum brakes
Steeringmech.mech.mech.mech.mech.mech.mech.
Turning circle m 2WD6.566.777.027.027.887.88
Front tyres 2WD6.00-166.00-166.00-167.50-167.50-167.50-167.50-16
Rear tyres 2WD12.4-2812.4-2812.4-3212.4-3612.4-3613.6-3612.4-38
Weight 2WD(1720) kg(1690) kg(1810)/2050 kg(2080)/2225 kg(2200)/2315 kg(2610) kg(2600)/2790 kg
Length (2WD/4WD)325 cm290 cm308 cm320 cm320 cm363 cm363/4v. 360 cm
Wheelbase (2WD/4WD)196 cm190.5 cm203 cm200 cm200/4v. 195 cm225 cm225/4v. 220 cm
Fuel tank36 l36 l52.3 l61.4 l61.4 l81.7 l81.7 l
Max. speed -27.9 km/h---27 km/h27 km/h
Height with cab-(142) cm(150) cm(163) cm(163) cm(164) cm(164) cm
Front tyres 4WD----9.5-24-11.2-24
Rear tyres 4WD----12.4-36-13.6-36
Weight 4WD----2630 kg-3035 kg