John Deere 770

John Deere 770The John Deere 770 is a 2WD or 4WD compact utility tractor from the 70 Compact series. This tractor was manufactured by the Yanmar for John Deere from 1989 to 1988. The JD 770 is equipped with a 1.4 L three-cylinder diesel engine and unsynchronized sliding gear type transmission with dry disc clutch (8 forward and 2 reverse gears).

The John Deere 770 compact utility tractor used the Yanmar 3TN82RJX engine. It is a 1.4 L, 1,362 cm2, (83.1 cu·in) three-cylinder natural aspirated diesel engine with 82.0 mm (3.23 in) of the cylinder bore and 86.0 mm (3.39 in) of the piston stroke. The compression ratio rating is 18.1:1. This engine produced 23.4 PS (17.2 kW; 23.0 HP) at 2,600 rpm of maximum output power.

The JD 770 is equipped with manual or hydrostatic power (optional) steering, dry shoe brakes, open operator station with two-post ROPS and 23.8 liters (6.3 US gal.; 5.2 Imp. gal) fuel tank.

Following attachments are available for John Deere 770 compact utility tractor:

  • John Deere mid-mount 60 in (1,520 mm) mower deck with 3-blades
  • John Deere 70 loader
  • John Deere 7 backhoe

John Deere 770 Specifications

General Specifications
ModelJohn Deere 770
Length2,230 mm (87.8 in)
Width1,360 mm (53.5 in)
Height2,000 mm (78.7 in)
Wheel base1,540 mm (60.6 in)
Weight 2WD: 875 kg (1,929 lbs)
4WD: 954 kg (2,105 lbs)
Fuel tank capacity23.8 liters (6.3 US gal.; 5.2 Imp. gal)
Battery12V, CCA 447A
Cabin typeOpen operator station with two-post ROPS
Engine modelYanmar 3TN82RJX
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement1.4 L, 1,362 cm2, (83.1 cu·in)
Bore and stroke82.0 mm X 86.0 mm (3.23 in X 3.39 in)
Compression ratio18.1:1
Horsepower23.4 PS (17.2 kW; 23.0 HP) at 2,600 rpm
Oil capacity:4.0 L (4.23 US. qt, 3.52 Imp. qt.)
Coolant capacity:4.8 L (5.07 US. qt, 4.22 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD or 4×4 MFWD 4WD
Steering typeManual or hydrostatic power (optional)
BrakesDry shoe
Transmission model
Transmission typeUnsynchronized sliding gear type with dry clutch
Gears8 forward and 2 reverse
Speed Forward: 17.4 kmh (10.8 mph) Reverse: 5.0 (3.1 mph)
Transmission oil capacity15.1 L (15.96 US. qt, 13.29 Imp. qt.)
Front tires Ag: 4.00-15 (2WD), 6.00-12 (4WD)
Lawn/turf: 25×8.50-14
Rear tires Ag: 12.4-16
Lawn/turf: 13.6-16
Three-Point Hitch
Control type
Lift capacity370 kg (816 lbs)
PTO (Power take-off shaft)
Middle PTO type
Middle PTO spped2,100 rpm
Rear PTO typeTransmission or live (option)
Rear PTO spped540 rpm
Hydraulic system
Hydraulic typeOpen center
Hydraulic capacity15.1 L (15.96 US. qt, 13.29 Imp. qt.)
Pressure2050 psi (141.3 bar)
Total flow5.6 gpm (21.2 lpm)
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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