John Deere 8770

John Deere 8770The John Deere 8770 is a 4WD four-wheel drive from the 8070 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1993 to 1996. The John Deere 8770 is equipped with a 10.1 L (619.0 cu·in) six-cylinder diesel engine and one of three transmissions: a partially synchronized transmission with 12 forward and 3 reverse gears, a two-speed power shift transmission with 24 forward and 6 reverse gears or a full power shift transmission with 12 forward and 2 reverse gears.

The JD 8770 four-wheel drive used the John Deere engine. It is a 10.1 L, 10,144 cm2, (619.0 cu·in) six-cylinder turbocharged aftercooled diesel engine with 130.0 mm (5.12 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 15.75:1. This engine produced 304.2 PS (223.7 kW; 300.0 HP) at 2,100 rpm of output power.

The John Deere 8770 is equipped with hydrostatic power steering, hydraulic wet discs brakes, Sound-Gard cab (standard) and 832.7 liters (220 US gal.; 183.2 Imp. gal) fuel tank.

John Deere 8770 Specifications

General Specifications
ModelJohn Deere 8770
Length6,830 mm (268.9 in)
Width–
Height–
Wheel base3,400 mm (133.9 in)
Weight14,950 kg (32,959 lbs)
Fuel tank capacity832.7 liters (220 US gal.; 183.2 Imp. gal)
BatteryTwo 12V, CCA 925A
Cabin typeSound-Gard cab (standard)
Engine
Engine modelJohn Deere
Engine typeFour-stroke, liquid-cooled, inline
Cylinders6
Fuel typeDiesel
Displacement10.1 L, 10,144 cm2, (619.0 cu·in)
Bore and stroke130.0 mm X 127.0 mm (5.12 in X 5 in)
Compression ratio15.75:1
Horsepower304.2 PS (223.7 kW; 300.0 HP) at 2,100 rpm
StarterElectric
Oil capacity:32.0 L (33.8 US. qt, 28.2 Imp. qt.)
Coolant capacity:54.9 L (58 US. qt, 48.3 Imp. qt.)
Transmission and chassis
Chassis4×4 articulated 4WD
Steering typeHydrostatic power
BrakesHydraulic wet discs
Final driveInboard planetary
Transmission modelSyncro
Transmission typePartially synchronized with hydraulic wet disc clutch
Gears12 forward and 3 reverse
Transmission modelPowrSync
Transmission typeTwo-speed power shift with hydraulic wet disc clutch
Gears24 forward and 6 reverse
Transmission modelPower Shift
Transmission typeFull power shift with hydraulic wet disc clutch
Gears12 forward and 2 reverse
Tires
Front tires Ag: 24.5R-32, 18.4R-38, 20.8R-38, 710/70R38, 18.4R-42, 20.8R-42,18.4R-46
Rear tires Ag: 24.5R-32, 18.4R-38, 20.8R-38, 710/70R38, 18.4R-42, 20.8R-42,18.4R-46
Three-Point Hitch
CategoryIII (optional)
Control typeDraft sensing
Lift capacity6,795 kg (14,980 lbs)
PTO (Power take-off shaft)
Rear PTO typeIndependent with hydraulic wet disc clutch
Rear PTO speed1000 rpm
Hydraulic system
Hydraulic typeClosed center pressure compensated
Hydraulic capacity143.8 L (38 US. gal, 31.6 Imp. gal.)
Pressure2530 psi (174.4 bar)
ValvesRear: 3 to 5
Pump flow44.8 gpm (169.6 lpm)
SCV flow33.3 gpm (126.1 lpm)
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