John Deere 770
Power
23 hp
Production
1989-1998
Engine
Diesel, 3-cylinder
Transmission
Unsynchronized gear
Weight
1930 lbs [875 kg]
Drive
2WD/4WD
From the same series:
Introduction
John Deere 770 Compact Utility Tractor
The John Deere 770 is a compact utility tractor manufactured by Yanmar in Japan and distributed by John Deere between 1989 and 1998. Positioned within the compact utility segment, it was designed for versatile agricultural, landscaping, and property maintenance tasks.
Engine and Power
The tractor is powered by a liquid-cooled Yanmar 3TN82-RJX 3-cylinder diesel engine. With a displacement of 1.4 liters (83.1 cubic inches) and a direct fuel injection system, it generates 23 net horsepower (17.2 kW) at a rated engine speed of 2600 RPM. The engine features an air intake heater for cold-start assistance and operates with a compression ratio of 18.1:1.
Transmission and Drivetrain
The 770 utilizes an unsynchronized gear transmission providing 8 forward and 2 reverse speeds. Power is transmitted through a 215mm dry disc clutch. The tractor was available in both two-wheel drive (2WD) and four-wheel drive (4WD) configurations, featuring a mechanical rear differential lock and spur gear final drives for durability.
Hydraulics and PTO
Equipped with an open-center hydraulic system, the tractor delivers a total pump flow of 5.6 GPM (21.2 lpm) at a pressure of 2050 psi (141.3 bar). The rear Category I three-point hitch includes position control and offers a lift capacity of 815 lbs (369 kg) at 24 inches behind the lift point. A 540 RPM rear PTO is standard, with an optional live mid-PTO available for mid-mounted implements.
Dimensions and Handling
The 770 features a wheelbase of 61 inches (154 cm). The 2WD model weighs approximately 1930 lbs (875 kg), while the 4WD variant weighs 2105 lbs (954 kg). Steering is manual by default, with power steering available as an optional upgrade. The tractor accommodates various tire configurations, including agricultural and lawn/turf options, to suit specific ground conditions.
Conclusion
The John Deere 770 is a robust and dependable compact utility tractor suited for small-scale farming and groundskeeping. Its combination of a reliable Yanmar engine, mechanical transmission, and flexible hydraulic capacity makes it a practical choice for operators requiring a maneuverable machine for diverse light-duty applications.
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Production Information of John Deere, 770
- Original price was $13,000 in 1998
- Built in Japan
- Compact Utility tractor
| Distributor | John Deere |
|---|---|
| Manufacturer | Yanmar |
Dimension and Tires Information of John Deere, 770
| Rear tread | 40 inches [101 cm] |
|---|---|
| Wheelbase | 61 inches [154 cm] |
| 2WD Weight | 1930 lbs [875 kg] |
| 4WD Width | 52.5 inches [133 cm] |
| Length | 111 inches [281 cm] |
| 4WD Clearance (drawbar) | 12 inches [30 cm] |
| 4WD Weight | 2105 lbs [954 kg] |
| 2WD Width | 49.3 inches [125 cm] |
| 4WD Front tread | 37.2 inches [94 cm] |
| 2WD Front tread | 38.1 inches [96 cm] |
| 2WD Clearance (drawbar) | 13.8 inches [35 cm] |
Minimum width.
Minimum width.
| 2WD Standard tires (ag) | Front: 4.00-15. Rear: 9.5-24 |
|---|---|
| Lawn/turf front | 25x8.50-14 |
| 2WD Optional tires (ag) | Front: 6.50-10. Rear: 12.4-16 |
| 4WD Standard tires (ag) | Front: 6.00-12. Rear: 12.4-16 |
| Lawn/turf rear | 13.6-16 |
| 2WD Optional tires (ag) | Front: 5.00-12. Rear: 12.4-16 |
Engine Specifications of John Deere, 770
- Yanmar 3TN82-RJX
- Liquid-cooled
- 3-cylinder
- Diesel
| Coolant capacity | 5.1 qts [4.8 L] |
|---|---|
| Oil capacity | 4.2 qts [4.0 L] |
| Fuel system | Direct injection |
| Compression | 18.1:1 |
| Pre-heating | Air intake heater |
| Displacement | 83.1 ci [1.4 L] |
| Power (net) | 23 hp [17.2 kW] |
| Air cleaner | Dry element |
| Bore/Stroke | 3.22x3.39 inches [82 x 86 mm] |
| Starter volts | 12 |
| Idle RPM | 800-2800 |
| Rated RPM | 2600 |
Transmission Information of John Deere, 770
Transmission variants 1
- Four gears, plus reverse, in two ranges.
| Type | Unsynchronized gear |
|---|---|
| Oil capacity | 16 qts [15.1 L] |
| Gears | 8 forward and 2 reverse |
| Clutch | 215mm dry disc |
Mechanical Specs of John Deere, 770
- Two-post ROPS.
- Two- or four-wheel drive
- Dry shoe brakes
| Steering(optional) | Power |
|---|---|
| Steering | Manual |
| Final drives | Spur gear |
| Differential lock | Mechanical rear |
Power Information of John Deere, 770
| Engine RPM | 2100@2600 |
|---|---|
| Rear PTO | Transmission |
| Mid PTO(optional) | Live |
| Engine RPM | 540@2600 |
| Engine RPM(optional) | Live |
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
Hydraulics Specifications of John Deere, 770
| Total flow | 5.6 gpm (manual steering) [21.2 lpm] |
|---|---|
| Type | Open center |
| Mid valves(optional) | 2 |
| Rear valves(optional) | 2 |
| Capacity | 4 gal [15.1 L] |
| Capacity(optional) | 9.9 gpm (power steering) [37.5 lpm] |
| Pump flow | 5.6 gpm [21.2 lpm] |
| Pressure | 2050 psi [141.3 bar] |
| Steering flow | 4.3 gpm [16.3 lpm] |
Three-Point Hitch of John Deere, 770
| Rear Type | I |
|---|---|
| Control | Position control |
| Rear lift (at 24"/610mm) | 815 lbs [369 kg] |
Electrical System of John Deere, 770
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery CCA | 447 |
| Charging system | Alternator |
| Charging amps | 20 |
Where it sits
With 23 HP, the John Deere 770 sits between 750 (20 HP) and 4200 (26 HP) in John Deere's range. Its power puts it in the 15th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the John Deere 770 have?
The John Deere 770 delivers 23 HP.
What years was the John Deere 770 produced?
The John Deere 770 was produced in 1989-1998.
What engine does the John Deere 770 have?
The John Deere 770 is powered by a Diesel, 3-cylinder engine.
What transmission does the John Deere 770 use?
The John Deere 770 uses a Unsynchronized gear transmission.
How much does the John Deere 770 weigh?
The John Deere 770 weighs 1930 lbs [875 kg].
Is the John Deere 770 4WD?
The John Deere 770 is available in 2WD/4WD.