John Deere

3120

Farm tractor · 2005–2008 · 29 hp

The John Deere 3120 is a farm tractor manufactured from 2005 to 2008. It features a Yanmar 3TNV84 engine, and two-post folding steering. The transmission is a hydrostatic type with infinite forward and reverse (3-range).

Engine

EngineYanmar 3TNV84
Fuel Typediesel
Cylinders3
Coolingliquid-cooled
Displacement91.5 ci (1.5 L)
Bore3.3 in (84 mm)
Stroke3.54 in (90 mm)
Compression Ratio18.5
Power Gross29.5 hp (22 kW)
Power Rated29.5 hp (22 kW)
Torque Peak66.7 lb-ft (90.4 Nm)
Torque Peak1,560 RPM
Fuel Systemdirect injection
Starter Volts12
Oil Capacity5.1 qts (4.8 L)
Coolant Capacity5.6 qts (5.3 L)
ManufacturerYanmar
Rated2,600 RPM
EmissionsTier II

Transmission

Transmission Typehydrostatic
Transmission ModelSauer-Danfoss eHydro
Gearsinfinite forward and reverse (3-range)
Transmission DescriptionControlled by two foot pedals and range shift lever. Tractor must be stopped before shifting ranges. Cruise control standard. SpeedMatch allows maximum speed to be limited. MotionMatch allows acceleration rate to be set. LoadMatch allows engine RPMs to be set, tractor will adjust speed to maintain RPMs.

Hydraulics

Typeopen center
Pump Flow8.6 gpm (32.6 lpm)
Valves5
Total Flow13.9 gpm (52.6 lpm)
System Capacity6.8 gal (25.7 L)

Hitch

Rear TypeI
Rear Lift2,530 lbs (1,147 kg)

Dimensions

Length120.2 in (305 cm)
Width52.4 in (133 cm)
Height57 in (144 cm)
Height Rops93.3 in (236 cm)
Wheelbase68 in (172 cm)
Rear Tread40.6 in (103 cm)

Weight

Weight3,000 lbs (1,360 kg)

Tires & Tracks

Front Ag7-14
Rear Ag11.2-24
Front Industrial25x8.5-14, 27x8.5-15
Rear Industrial15-19.5, 43x16-20

Fuel

Capacity13.5 gal (51.1 L)

Steering

Typetwo-post folding

Attachments

60" mid-mount mower deckJohn Deere 300X loaderJohn Deere 300CX loaderBackhoe
Mower Deck60 in (152 cm)
Backhoe ModelJohn Deere 47 Backhoe