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 rated power output is 23 hp 17.2 kW. Transmission: 8 forward and 2 reverse. Operating weight: 787 lbs 356 kg.

Overview

	1989 - 1998 70 Compact SeriesCompact Utility tractorYanmar built
1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

1989 - 1998
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
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

	1989 - 1998 70 Compact SeriesCompact Utility tractorYanmar built
1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

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

	1989 - 1998 70 Compact SeriesCompact Utility tractorYanmar built
1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

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.

Dimensions

	1989 - 1998 70 Compact SeriesCompact Utility tractorYanmar built
1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

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

	1989 - 1998 70 Compact SeriesCompact Utility tractorYanmar built
1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

1989 - 1998
70 Compact Series
Compact Utility tractor
Yanmar built

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