John Deere 3120
The John Deere 3120 is a compact utility tractor produced from 2005 to 2008 as part of the 3000 Twenty Series. It features a 29.5 hp Yanmar 1.5L 3-cylinder liquid-cooled diesel engine with direct injection and Tier II emissions. The tractor uses a Sauer-Danfoss eHydro hydrostatic transmission with infinite forward and reverse speeds across 3 ranges, controlled by foot pedals and a range shift lever. It has four-wheel drive, power steering, wet disc brakes, and a two-post folding ROPS. The 3120 has a fuel capacity of 13.5 gallons and a hydraulic system capacity of 6.8 gallons with an open center system and 5 valves. The rear hitch is category I with a lift capacity of 2530 lbs. PTO options include an independent 540 rpm rear PTO and an optional 2100 rpm mid PTO. Dimensions include a 68 inch wheelbase, 120.2 inch length, 52.4 inch minimum width, and 93.3 inch ROPS height. The tractor weighs 3000 lbs. Attachments include a 60 inch mid-mount mower deck, 300X and 300CX loaders, and a John Deere 47 backhoe. Electrical system features a 12 volt battery with 500 CCA and 40 amp charging. The 3120 was built in Augusta, Georgia, USA.
Power29 hp
Founded2005 - 2008
Model3120
Technical Specifications
Detailed specifications and technical data for John Deere 3120
Power
| Engine power | 29.5 hp / 22.0 kW |
|---|
Engine
| Type | diesel |
|---|---|
| Model | Yanmar 3TNV84 |
| Power | 29.5 hp / 22.0 kW |
| Torque | 66.7 lb-ft / 90.4 Nm |
| Cooling | liquid-cooled |
| Cylinders | 3-cylinder |
| Emissions | Tier II |
| Rated RPM | 2600 |
| Torque RPM | 1560 |
| Bore/Stroke | 3.3x3.54 inches / 84 x 90 mm |
| Compression | 18.5:1 |
| Fuel system | direct injection |
| Displacement | 91.5 ci / 1.5 L |
| Oil capacity | 5.1 qts / 4.8 L |
| Starter volts | 12 |
| Coolant capacity | 5.6 qts / 5.3 L |
Capacity
| Fuel | 13.5 gal / 51.1 L |
|---|---|
| Hydraulic system | 6.8 gal / 25.7 L |
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 500 |
| Battery volts | 12 |
| Charging amps | 40 |
Hydraulics
| Type | open center |
|---|---|
| Valves | 5 |
| Capacity | 6.8 gal / 25.7 L |
| Pump flow | 8.6 gpm / 32.6 lpm |
| Total flow | 13.9 gpm / 52.6 lpm |
Mechanical
| ROPS | Two-post folding ROPS |
|---|---|
| Drive | Four-wheel drive |
| Brakes | Wet disc brakes |
| Steering | power |
Production
| Years | 2005 - 2008 |
|---|---|
| Series | 3000 Twenty Series |
| Built in | Augusta, Georgia, USA |
| Category | Compact Utility tractor |
Attachments
| Overview | 60" mid-mount mower deck, John Deere 300X loader, John Deere 300CX loader, Backhoe |
|---|---|
| 300X Loader | Dump time4.1s AttachmentDeere quick-attach Dump angle40° Lower time1.7s Raise time2.8s Bucket width61 inches / 154 cm Reach dumped30.4 inches / 77 cm Reach ground54.4 inches / 138 cm Height at pin90 inches / 228 cm Rollback time1.7s Breakout at pin2855 lbs / 1295 kg Rollback raised103° Clearance dumped68.6 inches / 174 cm Lift 1.5m at pin1700 lbs / 771 kg Lift full at pin1360 lbs / 616 kg Breakout at 500mm2032 lbs / 921 kg Lift 1.5m at 500mm1312 lbs / 595 kg Lift full at 500mm999 lbs / 453 kg Rollback ground line21° |
| 300CX Loader | Dump time4.2s AttachmentDeere quick-attach, skid steer (optional) Dump angle41.1° Lower time2.1s Raise time3.6s Bucket width61 inches / 154 cm Reach dumped22 inches / 55 cm Reach ground58.6 inches / 148 cm Height at pin102 inches / 259 cm Rollback time1.8s Breakout at pin3327 lbs / 1509 kg Rollback raised119° Clearance dumped79.6 inches / 202 cm Lift 1.5m at pin2125 lbs / 963 kg Lift full at pin1598 lbs / 724 kg Breakout at 500mm2416 lbs / 1095 kg Lift 1.5m at 500mm1649 lbs / 747 kg Lift full at 500mm1122 lbs / 508 kg Rollback ground line31° |
| 60" Mower deck | Typemid-mount John Deere Blades3-blade Cutting width60 inches / 152 cm |
| John Deere 47 Backhoe | Weight1047 lbs / 474 kg Swing Arc180° Backhoe typeJohn Deere 47 Backhoe Bucket force2840 lbs / 1288 kg Loading height70 inches / 177 cm Bucket Rotation180° Reach from pivot114 inches / 289 cm Dipperstick force2005 lbs / 909 kg 2-Foot flat digging depth90 inches / 228 cm |
Transmission
| Type | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (3-range) |
| Model | Sauer-Danfoss eHydro |
| Control | Controlled 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. |
Tractor hitch
| Rear Type | I |
|---|---|
| Rear lift (at ends) | 2530 lbs / 1147 kg |
Serial Numbers
| 2005 | 110001 |
|---|---|
| 2006 | 210001 |
| 2007 | 310001 |
| 2008 | 410001 |
Dimensions & Tires
| Width | 52.4 inches (Minimum) / 133 cm |
|---|---|
| Length | 120.2 inches / 305 cm |
| Weight | 3000 lbs / 1360 kg |
| Wheelbase | 68 inches / 172 cm |
| Rear tread | 40.6/45.3/48.9/53.1/56.6 inches / 103/115/124/134/143 cm |
| Ag rear tire | 11.2-24 |
| Ag front tire | 7-14 |
| Height (ROPS) | 93.3 inches / 236 cm |
| Height (hood) | 57 inches / 144 cm |
| Lawn/turf rear tire | 41x14-20, 41x18LL-16.1 |
| Industrial rear tire | 15-19.5, 43x16-20 |
| Lawn/turf front tire | 27x8.5-15, 25x10.5LL-15 |
| Clearance (rear axle) | 12.2 inches / 30 cm |
| Industrial front tire | 25x8.5-14, 27x8.5-15 |
Power Take-off (PTO)
| Mid PTO | optional |
|---|---|
| Rear PTO | independent |
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
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