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John Deere 770

The John Deere 770 is a tractor produced by John Deere. It is equipped with a 83.1 ci 1.4 L engine. The listed engine power is Diesel (net): 23 hp / 17.2 kW. Transmission: 8 forward and 2 reverse. Operating weight: 787 lbs 356 kg.

Engine Power
Diesel (net): 23 hp / 17.2 kW
Fuel & Capacities
6.3 gal 23.8 L
Transmission
8 forward and 2 reverse
Operating Weight
787 lbs 356 kg

Overview

John Deere 770 tractor photo
1989 - 1998 70 Compact SeriesCompact Utility tractorYanmar built 70 Compact Series Compact Utility tractor Yanmar built
Production
Distributor
John Deere
Manufacturer
Yanmar
Compact Utility tractor
Built in Japan
Original price was $13,000 in 1998
John Deere 770 Engine
Yanmar 1.4L 3-cyl diesel
Engine details ...
John Deere 770 Transmission
8-speed unsynchronized gear
Transmission details ...
John Deere 770 Power
Engine (net)
23 hp 17.2 kW
PTO (claimed)
20 hp 14.9 kW
Mechanical
Two- or four-wheel drive
Final drives
spur gear
Differential lock
mechanical rear
Steering
manual
Steering
power OptOptional
Dry shoe brakes
Two-post ROPS.
Capacity
Fuel
6.3 gal 23.8 L
Hydraulic system
4 gal 15.1 L
Front axle
3.2 qts 3.0 L
Hydraulics
Type
open center
Capacity
4 gal 15.1 L
Pressure
2050 psi 141.3 bar
Rear valves
2 OptOptional
Mid valves
2 OptOptional
Pump flow
5.6 gpm 21.2 lpm
Total flow
5.6 gpm (manual steering) 21.2 lpm
9.9 gpm (power steering) 37.5 lpm
Steering flow
4.3 gpm 16.3 lpm
Tractor hitch
Rear Type
I
Control
position control
Rear lift (at 24"/610mm)
815 lbs 369 kg
Power Take-off (PTO)
Rear PTO
transmission
live OptOptional
Rear PTO Type
540
Engine RPM
540@2600
Mid PTO
live OptOptional
Mid PTO Type
2100
Engine RPM
2100@2600
Dimensions & Tires
Wheelbase
61 inches 154 cm
Weight
1930 to 2105 pounds
Front tire
4.00-15
2WD Rear tire
9.5-24
Full dimensions and tires ...
Electrical
Ground
negative
Charging system
alternator
Charging amps
20
Battery CCA
447
Battery volts
12
References
770 references literature
Grounds Care & Recreation Products Sales Manual published in 1989, by John Deere
Lawn & Grounds Care Sales Manual published in 1997, by John Deere*
Commercial & Consumer Equipment Sales Manual published in 1999, by John Deere
Golf and Turf Equipment Purchasing Guide published in 1998, by John Deere
Operator's Manual 650 and 750 Tractors (OM-RW15455) published in 1984
Operator's Manual 670 and 770 Tractors (OM-M79606) published in 1988
Compact Tractors Under 40 Horsepower published in 1991, by John Deere
Compact Utility Tractors published in 1993, by John Deere
John Deere Compact Utility Tractors published in 1995
Compact Utility Tractors Product Information Handbook published in 1991, by John Deere
*Publication contains known errors.

Engine

Engine Detail — 83.1 ci / 1.4 L Diesel

Manufacturer
Yanmar 3TN82-RJX
Fuel Type
Diesel
Configuration
3-cylinder, liquid-cooled
Displacement
83.1 ci 1.4 L
Bore/Stroke
3.22x3.39 inches 82 x 86 mm
Power (net)
23 hp 17.2 kW
Fuel system
direct injection
Air cleaner
dry element
Pre-heating
air intake heater
Compression
18.1:1
Rated RPM
2600
Idle RPM
800-2800
Starter volts
12
Oil capacity
4.2 qts 4.0 L
Coolant capacity
5.1 qts 4.8 L

Transmission

Transmission — 8 forward and 2 reverse unsynchronized gear

Type
unsynchronized gear
Gears
8 forward and 2 reverse
Clutch
215mm dry disc
Oil capacity
16 qts 15.1 L
Four gears, plus reverse, in two ranges.
With 12.4-16 R1 rear tires.
770 unsynchronized gear speeds

Dimensions

John Deere 770 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: 5.00-12. Rear: 12.4-16
2WD Optional tires (ag)
Front: 6.50-10. Rear: 12.4-16
Lawn/turf front
25x8.50-14
Lawn/turf rear
13.6-16
Dimensions
Wheelbase
61 inches 154 cm
Length
111 inches 281 cm
2WD Width
49.3 inches*Minimum width. 125 cm
4WD Width
52.5 inches*Minimum width. 133 cm
2WD Weight
1930 lbs 875 kg
4WD Weight
2105 lbs 954 kg
2WD Clearance (drawbar)
13.8 inches 35 cm
4WD Clearance (drawbar)
12 inches 30 cm
2WD Front tread
38.1 inches 96 cm
4WD Front tread
37.2 inches 94 cm
Rear tread
40 inches 101 cm
John Deere 770 Height
2WD Hood
58.5 inches 148 cm
4WD Hood
48.6 inches 123 cm
2WD ROPS
80.8 inches 205 cm
4WD ROPS
79 inches 200 cm
2WD Exhaust
74.1 inches 188 cm
4WD Exhaust
75.6 inches 192 cm

Attachments

Attachment overview
60" mid-mount mower deck
Blade
Front-end loader
Backhoe
60" Mower deck
Type
mid-mount John Deere 160
3-blade
Cutting width
60 inches 152 cm
Weight
345 lbs 156 kg
Overall width
72.5 inches 184 cm
Cut height
1.0 to 8.75 inch 2 to 22 cm
John Deere 7 Backhoe
Backhoe type
John Deere 7 Backhoe
Weight
787 lbs 356 kg
Transport height
69 inches 175 cm
Bucket width
9 inches 22 cm
13 inches 33 cm
16 inches 40 cm
19 inches 48 cm
2-Foot flat digging depth
90 inches 228 cm
Reach from pivot
114 inches 289 cm
Loading height
70 inches 177 cm
Bucket Rotation
180°
Swing Arc
180°
Bucket force
1095 lbs 496 kg
Dipperstick force
1945 lbs 882 kg

Recommended Implements & Sizing Guide

Engineering recommendations for John Deere 770 based on its 23 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
1 to 2 Bottom (12")1 - 2 铧 (30 cm)Light DutyIdeal for garden plots and light sandy soil.
Rotary Cutter / MowerMowing & Clearing
4 ft (48 in)1.2 mLight DutyPasture clipping and light brush under 1" diameter.
Rotary TillerSeedbed Prep
42 to 48 in105 - 120 cmLight DutyCovers compact tractor tire width.
Disc HarrowSecondary Tillage
5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片)Light DutySmall acreage soil break-up and secondary aeration.
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere 770.

Estimated Continuous Field Runtime: 5.3 hrs

Approximately 5.3 hours of continuous field operation at ~75% rated power on a full tank (6.3 gal / 23.8 L).

Estimated 75% Load Fuel Burn~1.2 gal/hr (4.5 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

John Deere 770 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 770.

Converted Equivalents:

Horsepower (HP)23 hp
Kilowatts (kW)17.2 kW
Metric Horsepower (PS / CV)23.3 PS

Direct Competitor Comparison

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