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John Deere 8120



Technical Data and Photos




Model: 8120 (8020 Series)

Manufacturer: John Deere

Factory: Waterloo, Iowa, USA.

Years of production: 2002 - 2005

Type: Four-wheel drive tractor

Layout: Front-engine, 4WD


CAB

CommandView cab with ComfortCommand seat or Active Seat and CommandARM.
Implement Management System, Automatic PowerShift, Hitch Slip Command.
Corner Post, dashboard mini-pod, vehicle monitor, Hydraulic TouchSet panel, optional deluxe performance monitor.
Air Conditioning or optional Automatic Temperature Control.


ENGINE

Model: John Deere 6081H
Type: Vertical, in-line, four-stroke diesel engine.
Aspiration: turbocharged
Cooling: liquid-cooled
Cooling fan drive: viscous
Air system: Dry filter with safety element and vacuum motor aspirated Strato-Tube pre cleaner.
Fuel injection system: High Pressure Common Rail, electronic injectors with variable injection timing and duration.
Control: Electronic injection control and electronic governing.

Compression: 16.5:1
Displacement: 8.1 L (496 cu in)
Number of cylinders: 6
Bore: 116 mm (4.56 in)
Stroke: 129 mm (5.06 in)

Operating speed: 1500-2200 RPM
Constant power range: 600 RPM
Torque reserve: 40%

Rated speed: 2200 RPM
Rated power (ECE-R24): 147 kW (200 HP)
Rated power (97/68/EC): 153 kW (208 HP)
Maximum power (ECE-R24): 162 kW (220 HP)
Maximum power (97/68/EC): 169 kW (230 HP)

Fuel consumption at best point: 202 g/kWh



FLUID CAPACITIES

Cooling system: 34 L (9.0 US gal)
Engine oil: 21.5 L (22.7 US qts)
Transmission, final drive and hydraulic oil: 140 L (37 US gal)
Front axle oil (differential and final drives): 10.4 L (11 US qts)
Fuel tank: 606 L (160 US gal)


TRANSMISSIONS

Automatic Powershift:
16 Forward and 5 reverse full power shift speeds with fully automatic shifting and Field Cruise control.

Automatic Shifting Modes:
Automatic Draft, Transport and PTO. Shifting in relation to throttle reduction for transport and headland turns.

Control:
Shift under load – Automatic, Manual, Skip-Shift or sequential shift, shuttle reversing.

Inching Pedal/Clutch:
Foot operated wet disc clutch for inching.


SPEED RANGES

Number of field working speeds: 8

Speed range - forwards: 2 – 42 km/h
Speed range - reverse: 1.8 – 17 km/h


HYDRAULIC SYSTEM

Type: PFC System (pressure and flow compensating), load sensing with dedicated system pump.
Maximum pressure: 200 bar (2900 psi)
Maximum flow: 126 L/min (33.5 gpm) or optional 160 L/min (42.5 gpm)
Electro-Hydraulic Selective control valves:
Neutral, raise, lower and float. Adjustable flow with temperature compensation. Selectable detents. Load check valves and release assistors.
Maximum SCV’s: 5


POWER TAKE-OFF (PTO)

Independent oil cooled multiple disc, electro-hydraulically engaged and braked.
1000 RPM, 20 spline 45 mm shaft or 2 speed dry change 1000 RPM and 540 RPM with 45 and 35 mm shafts.

Engine speed at standard PTO speeds:
1000 RPM at 2180 engine RPM
540 RPM at 1980 engine RPM


3-POINT HITCH – REAR

Category 3N/3 with hook type draft link ends.
Electro-hydraulic with full electronic lower link draft sensing. Hitch dampening. External control switches.

Maximum lift capacity: 8400 kg (82.1 kN)
OECD lift capacity at 610 mm: 7638 kg (74.9 kN)


3-POINT HITCH – FRONT - OPTIONAL

Category 3N with hook type draft link ends.
Electro-hydraulic, CommandARM control with full electronic integration with Implement Management System, External control switch.

Maximum lift capacity: 5,200 kg (51.0 kN)


STEERING

Hydrostatic power steering with ground drive back-up system.


BRAKES

Power brakes with oil cooled disc, hydraulically actuated and self equalising. Transmission Park lock and secondary hand brake.


INDEPENDENT LINK SUSPENSION (ILS) 4WD
Option

John Deere Independent upper and lower arms with integrated centre and outer final drives. Electro-hydraulic integrated management.

Hydro-pneumatic, permanent active, automatic levelling, automatic load compensation and draft active geometary for three point hitch implements.

Suspension range and cylinders:
± 125 mm at each wheel, 2 double acting hydraulic cylinders with suspension and rebound damping.

Performance features:
Electro-hydraulic differential lock, dual wheel capable, integrated transmission lubrication oil and integral high capacity balanced steering cylinder


DIMENSIONS
With tyre size 540/65 R34 and 650/75 R38

Width: 2540 mm (100 in)
Height: 3150 mm (124 in)
Length: 5850 mm (230 in)

Wheelbase: 2960 mm (116.9 in)
Wheelbase (ILS): 2930 mm (115.7 in)


WEIGHT

Minimum shipping weight: 9 000 kg (19,842 lbs)

Operating weight (with tyres 480/80R46 (duals)): 9099 kg (20,060 lbs)

Maximum permissible weight for road: 14 000 kg (30,685 lbs)


John Deere 8120 tractor with a tank trailer
John Deere 8120 tractor with a tank trailer.
Taken on: 24 October 2006
Size of the photo: 1600 x 900, 1.03 MB
Source of the photo: United States Department of Agriculture
Changes: This image was extracted from the original photo, contrast changed.
The original photo is under the photo.


John Deere 8120 tractor with a tank trailer in a field
John Deere 8120 tractor with a tank trailer in a field.
Manure injection implement being used on a farm field in California, USA.
Taken on: 24 October 2006
Size of the photo: 2100 x 1500, 2.44 MB
Source of the photo: United States Department of Agriculture





John Deere 8120
John Deere 8120
Taken on: 25 October 2006
Size of the photo: 1886 x 1386, 1.62 MB
Author of the photo: Benjamin Earwicker
Changes: This image was extracted from the original photo.
The original photo is under the photo.


John Deere 8120 tractor with a plow
John Deere 8120 tractor with a plow.
Taken on: 25 October 2006
Size of the photo: 1920 x 1080, 1.30 MB
Author of the photo: Benjamin Earwicker
Changes: This image was extracted from the original photo.
The original photo is under the photo.


John Deere 8120 tractor with a plow in a field
John Deere 8120 tractor with a plow in a field.
Taken on: 25 October 2006
Size of the photo: 3008 x 2000, 3.53 MB
Author of the photo: Benjamin Earwicker


Side view of the John Deere 8120 tractor with a plow
Side view of the John Deere 8120 tractor with a plow.
Taken on: 25 October 2006
Size of the photo: 1383 x 840, 851 kB
Author of the photo: Benjamin Earwicker
Changes: This image was extracted from the original photo.
The original photo is under the photo.


The green tractor with a plow in a plow
The green tractor with a plow in a plow.
Taken on: 25 October 2006
Size of the photo: 3008 x 2000, 3.19 MB
Author of the photo: Benjamin Earwicker


Front view of the John Deere 8120
Front view of the John Deere 8120.
Taken on: 25 October 2006
Size of the photo: 2014 x 1838, 2.32 MB
Author of the photo: Benjamin Earwicker
Changes: This image was extracted from the original photo.
The original photo is under the photo.


John Deere 8120 tractor in a field
John Deere 8120 tractor in a field.
Taken on: 25 October 2006
Size of the photo: 3008 x 2000, 2.33 MB
Author of the photo: Benjamin Earwicker


John Deere 8120 tractor with three trailers
John Deere 8120 tractor with three trailers.
Taken on: 24 September 2015
Size of the photo: 1920 x 1080, 1.29 MB
Author of the photo: Norma Angulo Lahens
License of the photo: (CC BY-SA 4.0)
Changes: This image was extracted from the original photo.
The original photo is under the photo.


John Deere 8120 tractor with three trailers in a field
John Deere 8120 tractor with three trailers in a field.
Grains harvest near the village of Monkton, in Perth County, Ontario, USA.
Taken on: 24 September 2015
Camera model: Nikon D7100
Size of the photo: 4000 x 2666, 1.29 MB
Author of the photo: Norma Angulo Lahens
License of the photo: (CC BY-SA 4.0)



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