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
Model John Deere 770
Length 2,230 mm (87.8 in)
Width 1,360 mm (53.5 in)
Height 2,000 mm (78.7 in)
Wheel base 1,540 mm (60.6 in)
Weight 2WD: 875 kg (1,929 lbs)
4WD: 954 kg (2,105 lbs)
Fuel tank capacity 23.8 liters (6.3 US gal.; 5.2 Imp. gal)
Battery 12V, CCA 447A
Cabin type Open operator station with two-post ROPS
Engine model Yanmar 3TN82RJX
Engine type Four-stroke, liquid-cooled, inline
Cylinders 3
Fuel type Diesel
Displacement 1.4 L, 1,362 cm2, (83.1 cu·in)
Bore and stroke 82.0 mm X 86.0 mm (3.23 in X 3.39 in)
Compression ratio 18.1:1
Horsepower 23.4 PS (17.2 kW; 23.0 HP) at 2,600 rpm
Starter Electric
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
Chassis 4×2 2WD or 4×4 MFWD 4WD
Steering type Manual or hydrostatic power (optional)
Brakes Dry shoe
Transmission model
Transmission type Unsynchronized sliding gear type with dry clutch
Gears 8 forward and 2 reverse
Speed Forward: 17.4 kmh (10.8 mph) Reverse: 5.0 (3.1 mph)
Transmission oil capacity 15.1 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
Caterogy I
Control type
Lift capacity 370 kg (816 lbs)
PTO (Power take-off shaft)
Middle PTO type
Middle PTO spped 2,100 rpm
Rear PTO type Transmission or live (option)
Rear PTO spped 540 rpm
Hydraulic system
Hydraulic type Open center
Hydraulic capacity 15.1 L (15.96 US. qt, 13.29 Imp. qt.)
Pressure 2050 psi (141.3 bar)
Total flow 5.6 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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