John Deere 770 N/A Specifications
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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Find Suppliers & Request SamplesTransmission
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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Find Suppliers & Request SamplesCommon 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.
Techincal Specifications
Engine Detail | |
| Description | Yanmar 3TN82-RJX diesel 3-cylinder liquid-cooled |
| Displacemen | 83.1ci / 1.4L |
| Bore/strok | 3.22x3.39inches / 82x 86mm |
| Fuel Syste | direct injection |
| Air Cleane | dry element |
| Pre-heatin | air intake heater |
| Compressio | 18.1:1 |
| Rated Rp | 2600 |
| Idle Rp | 800-2800 |
| Starter Volt | 12 |
| Oil Capacit | 4.2qts / 4.0L |
| Coolant Capacit | 5.1qts / 4.8L |
Engine | |
| Description | Yanmar 1.4L 3-cyl diesel |
Transmission | |
| Description | 8-speed unsynchronized gear |
Mechanical | |
| Description | Two- or four-wheel drive Dry shoe brakes Two-post ROPS |
| Final Drive | spur gear |
| Differential Loc | mechanical rear |
| Steerin | power OptOptional |
Tires | |
| 2wd Standard Tires (ag | Front: 4.00-15. Rear: 9.5-24 |
| 4wd Standard Tires (ag | Front: 6.00-12. Rear: 12.4-16 |
| 2wd Optional Tires (ag | Front: 6.50-10. Rear: 12.4-16 |
| Lawn/turf Fron | 25x8.50-14 |
| Lawn/turf Rea | 13.6-16 |
Dimensions And Tires | |
| Wheelbas | 61inches / 154cm |
| Weigh | 1930 to 2105 pounds |
| Front Tir | 4.00-15 |
| 2wd Rear Tir | 9.5-24 |
Serial Numbers | |
| 198 | 1001 |
| 199 | 170001 |
Capacity | |
| Fue | 6.3gal / 23.8L |
| Hydraulic Syste | 4 gal/15.1 L |
| Front Axl | 3.2qts / 3.0L |
Hydraulics | |
| Typ | open center |
| Capacit | 4 gal/15.1 L |
| Pressur | 2050psi / 141.3bar |
| Rear Valve | 2 OptOptional |
| Mid Valve | 2 OptOptional |
| Pump Flo | 5.6gpm / 21.2lpm |
| Total Flo | 5.6gpm (manual steering) / 21.2lpm 9.9gpm (power steering) / 37.5lpm |
| Steering Flo | 4.3gpm / 16.3lpm |
Tractor Hitch | |
| Rear Typ | I |
| Contro | position control |
| Rear Lift (at 24 | 815lbs / 369kg |
Electrical | |
| Groun | negative |
| Charging Syste | alternator |
| Charging Amp | 20 |
| Battery Cc | 447 |
| Battery Volt | 12 |
Speeds | |
| Description | With 12.4-16 R1 rear tires |
Power Take Off Pto | |
| Rear Pt | transmission live OptOptional |
| Rear Rp | 540 |
| Engine Rp | 2100@2600 |
| Mid Pt | live OptOptional |
| Mid Rp | 2100 |
Serial Location | |
| Description | Serial number plate above the PTO shaft on the John Deere 770 |