John Deere 770

Name: John Deere 770
Brand: John Deere

Power

23 hp

Production

1989-1998

Engine

Diesel, 3-cylinder

Transmission

Unsynchronized gear

Weight

1930 lbs [875 kg]

Drive

2WD/4WD

Under 25 HP 1980s 1990s

From the same series:

670

870

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."

Videos

Introduction

Production Information of John Deere, 770

The production information of the tractor (770) includes details about its manufacturing.

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

This section sums up the dimension and tires information of the tractor.


Rear tread	40 inches [101 cm]
Wheelbase	61 inches [154 cm]
2WD Weight	1930 lbs [875 kg]
4WD Width	52.5 inches*Minimum width. [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*Minimum width. [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]


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

Get the specifications for the engine and if different options are available.

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, 770Y

Discover all variants of transmission available for this tractor model.

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, 770Y

This section summarizes all mechanical information such as the brake system and other specifications.

Two-post ROPS.

Two- or four-wheel drive

Dry shoe brakes


Steering	Power OptOptional
Steering	Manual
Final drives	Spur gear
Differential lock	Mechanical rear

Power Information of John Deere, 770Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Engine RPM	2100@2600
Rear PTO	Transmission
Mid PTO	Live OptOptional
Engine RPM	540@2600
	Live OptOptional
Mid PTO Type	2100
Rear PTO Type	540

Hydraulics Specifications of John Deere, 770

Hydraulic system type, pressure, pump flow and valves.


Total flow	5.6 gpm (manual steering) [21.2 lpm]
Type	Open center
Mid valves	2 OptOptional
Rear valves	2 OptOptional
Capacity	4 gal [15.1 L]
	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

Hitch category and rear/front lift capacity.


Rear Type	I
Control	Position control
Rear lift (at 24"/610mm)	815 lbs [369 kg]

Electrical System of John Deere, 770

Battery voltage, charging system and ground.


Ground	Negative
Battery volts	12
Battery CCA	447
Charging system	Alternator
Charging amps	20

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.

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