The David Brown 770 tractor is powered by a David Brown 2.4L 3-cyl diesel engine that provides 36 hp/26.8 kW of horsepower and 100 lb-ft/135.6 Nm torque. It has a 4x2 2WD drive configuration and a gear transmission.

Engine

The engine is a David Brown AD3/49 diesel 3-cylinder liquid-cooled engine with a displacement of 146.1 ci/2.4 L. It has a bore/stroke of 3.94x4.00 inches/100 x 102 mm and a compression ratio of 17:1. The engine is rated at 36 hp/26.8 kW with a torque of 100 lb-ft/135.6 Nm at 1400 rpm. It has a direct injection fuel system and a starter voltage of 12 volts. The engine has an oil capacity of 7.8 qts/7.4 L and a coolant capacity of 12 qts/11.4 L.


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Transmission

The transmission is a 12-speed gear transmission with 12 forward and 4 reverse gears. It has a dry disc clutch and a claimed PTO power of 32 hp/23.9 kW. The transmission is capable of handling 2 plows. The transmission is designed to work with the engine to provide optimal power and torque to the wheels. It is a reliable and efficient transmission that is easy to use and maintain.

Brakes

The brakes are mechanical drum brakes that provide reliable stopping power. They are designed to work with the transmission and engine to provide optimal control and stopping power. The brakes are easy to maintain and are designed to last a long time. The David Brown AD3/49 diesel engine provides ample power to the brakes to ensure that they are effective in all conditions. The brakes are an important safety feature of the tractor.



Steering

The steering is manual and is powered by a David Brown 2.4L 3-cylinder diesel engine. The fuel tank has a capacity of 11.4 gal/43.1 L. The steering is designed to be easy to use and provides good control of the tractor. The manual steering is reliable and easy to maintain. It is a simple and effective system that provides good control of the tractor in all conditions.


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Common Problems

Users have reported issues with the chassis of the David Brown 770, which is a 4x2 2WD. The final drives are spur gear, which can wear out over time and require replacement. The differential lock is mechanical rear, which can be difficult to engage and disengage. The steering is manual, which can be tiring to use for long periods of time. The brakes are mechanical drum, which can wear out over time and require replacement. The cab is an open operator station, which can be uncomfortable in extreme weather conditions. The transmission is a 12-speed gear, which can be difficult to shift at times.

What Users Like

Users appreciate the ag front tires, which are 5.50-16, and the ag rear tires, which are 11.2/10-28. They provide good traction and are reliable in all conditions. Users also appreciate the reliability and efficiency of the transmission and engine. The tractor is easy to use and maintain, which makes it a popular choice for farmers and other users. The tractor is also versatile and can be used for a variety of tasks, including plowing, tilling, and hauling. The David Brown 770 is a reliable and efficient tractor that is well-suited for a variety of tasks.

David Brown 770 Technical Specifications

Power

Engine36 hp/26.8 kW
Pto (claimed)32 hp/23.9 kW
Plows2

Engine Detail

DescriptionDavid Brown AD3/49/diesel/3-cylinder/liquid-cooled
Displacement146.1 ci/2.4 L
Bore/stroke3.94x4.00 inches/100 x 102 mm
Power36 hp/26.8 kW
Fuel Systemdirect injection
Compression17:1
Rated Rpm2055
Idle Rpm700-2000
Torque100 lb-ft/135.6 Nm
Torque Rpm1400
Firing Order1-2-3
Starterelectric
Starter Volts12
Oil Capacity7.8 qts/7.4 L
Coolant Capacity12 qts/11.4 L

Engine

DescriptionDavid Brown 2.4L 3-cyl diesel
Fuel Tank11.4 gal/43.1 L

Transmission

Typegear
Gears12 forward and 4 reverse
Clutchdry disc
Oil Capacity28.8 qts/27.3 L

Mechanical

Chassis4x2 2WD
Final Drivesspur gear
Differential Lockmechanical rear
Steeringmanual
Brakesmechanical drum
CabOpen operator station.
Transmission12-speed gear

Tires

Ag Front5.50-16
Ag Rear11.2/10-28

Dimensions

Wheelbase75 inches/190 cm
Length112.5 inches/285 cm
Width64 inches/162 cm
Height (steering Wheel)55.5 inches/140 cm
Height (exhaust)80.5 inches/204 cm
Clearance (drawbar)11 inches/27 cm
Front Tread48/52/56/60/64/68/72/76 inches/121/132/142/152/162/172/182/193 cm
Rear Tread48/52/56/60/64/68/72/76 inches/121/132/142/152/162/172/182/193 cm

Dimensions And Tires

Wheelbase75 inches/190 cm
Weight3110 to 3270 pounds
Front Tire6.00-16
Rear Tire12.4/11-28

Belt Pulley

Diameter8.5 inches/21 cm
Width5.2 inches/13 cm
Rpm2023
Speed3100 ft/min/944.88 meters/min

Hydraulics

Typeopen center
Pressure2000 psi/137.9 bar
Pump Flow6.6 gpm/25.0 lpm

Tractor Hitch

Rear TypeI
Controlposition and draft control
Rear Lift (at Ends)1600 lbs/725 kg

Electrical

Groundnegative
Battery Volts12
Battery Ah96

Power Take Off Pto

Rear Ptolive
Rear Rpm540 (1.375)
Engine Rpm540@1620

Weight

Shipping3110 lbs/1410 kg
Operating3270 lbs/1483 kg
Max Capacity4470 lbs/2027 kg

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David Brown 1410, David Brown 2D, David Brown 30, David Brown 30TD, David Brown 40TD, David Brown 4600, David Brown 50D, David Brown 50TD, David Brown 770, David Brown 780, David Brown 885, David Brown 995, David Brown 996, David Brown Cropmaster, David Brown Cropmaster Diesel,