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JOHN DEERE WHEEL TRACTORS



John Deere 8770



Technical Data and Photos




Model: 8770

Manufacturer: John Deere

Factory: Waterloo, Iowa, USA.

Years of production: 1993 - 1996

Original price (USD): $114,945

Type: Four-wheel drive tractor

Number of axles: 2

Layout: front-engine, four-wheel drive (4WD)


ENGINE

Type: Six cylinder, vertical, in-line, four-stroke diesel engine with turbocharger and air to air intercooler. Cooling: water-cooled
Air cleaner: two paper elements and aspirator
Compression ratio: 15.75:1
Number of cylinders: 6
Displacement: 10.1 L (619 cu in)
Bore: 130 mm (5.12 in)
Stroke: 127 mm (5.00 in)
Power: 223.7 kW (300 hp)
Rated engine speed: 2100 rpm



ELECTRICAL SYSTEM

Ground: negative
Starter: 12 V
Batteries: 2 x 12 V


TRANSMISSIONS

Syncro

Type: partially synchronized
Gears: 12 forward and 3 reverse
Clutch: PermaClutch hydraulic wet disc.
Three synchronized gears in four ranges.

PowrSync

Type: two-speed power shift
Gears: 24 forward and 6 reverse
Clutch: hydraulic wet disc
Six gears in four ranges. Power shift between gear pairs 1/2, 3/4, and 5/6. Synchronized shifting between other gears and ranges.

Power Shift

Type: full power shift
Gears: 12 forward and 2 reverse
Clutch: hydraulic wet disc


BRAKES

Wet disc hydraulically power actuated and operated by foot pedal.


STEERING

Hydrostatic and articulated.


HYDRAULIC SYSTEM
Type: Closed center pressure compensated.
Pressure: 174.4 bar (2530 psi)
Rear valves: 3 to 5
Pump flow: 169.6 L/min (44.8 gpm)
SCV flow: 126.0 L/min (33.3 gpm)


FLUID CAPACITIES

Cooling system: 54.9 L (58 qts)
Engine oil: 32.0 L (33.8 qts)
Hydraulic system: 143.8 L (38 gal)
Fuel tank: 832.7 L (220 gal)


3-POINT HITCH

Rear type: 3 (optional)
Control: draft sensing
Rear lift: 6794 kg (14,980 lbs)


POWER TAKE-OFF (PTO)

Rear PTO: independent (optional)
Clutch: hydraulic wet disc
Rear rpm: 1000 (1.75)


DIMENSIONS

Wheelbase: 3400 mm (134 in)
Length: 6830 mm (268.9 in)
Tread width - front: 1524 mm (60.0 in) - 3348 mm (131.8 in)
Tread width - rear: 1524 mm (60.0 in) - 3348 mm (131.8 in)
Height of drawbar: 470 mm (18.5 in)


WEIGHTS

Shipping weight: 14260 kg (31,438 lbs)
Unladen tractor weight: 14 950 kg (32,960 lbs)

Operating weight with operator, eight tires, (without ballast):
Front axle: 8 339 kg (18,384 lb)
Rear axle: 6 686 kg (14,740 lb)
Total operating weight: 15 025 kg (33,124 lbs)


TIRES

Front tires:
    24.5R-32
    18.4R-38
    20.8R-38
    710/70R38
    18.4R-42
    20.8R-42
    18.4R-46

Rear tires:
    24.5R-32
    18.4R-38
    20.8R-38
    710/70R38
    18.4R-42
    20.8R-42
    18.4R-46

MAXIMUM SPEED

With PowrSync transmission (24 speeds)
Maximum speed: 34.2 km/h (21.2 mph)


John Deere 8770 tractor
John Deere 8770 tractor.
Taken on: 24 April 2014
Size of the photo: 1920 x 1080, 1.03 MB


John Deere 8770 tractor
John Deere 8770 tractor.
Taken on: 24 April 2014
Size of the photo: 1920 x 1080, 1.08 MB


John Deere 8770 tractor tilling a field
John Deere 8770 tractor tilling a field.
Taken on: 24 April 2014
Size of the photo: 4320 x 3240, 2.55 MB





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