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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.
John Deere 3120tractor specscompact utility tractorYanmar enginehydrostatic transmission3000 Twenty Seriestractor attachmentsloaderbackhoe
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 time:4.1s
Attachment:Deere quick-attach
Dump angle:40°
Lower time:1.7s
Raise time:2.8s
Bucket width:61 inches / 154 cm
Reach dumped:30.4 inches / 77 cm
Reach ground:54.4 inches / 138 cm
Height at pin:90 inches / 228 cm
Rollback time:1.7s
Breakout at pin:2855 lbs / 1295 kg
Rollback raised:103°
Clearance dumped:68.6 inches / 174 cm
Lift 1.5m at pin:1700 lbs / 771 kg
Lift full at pin:1360 lbs / 616 kg
Breakout at 500mm:2032 lbs / 921 kg
Lift 1.5m at 500mm:1312 lbs / 595 kg
Lift full at 500mm:999 lbs / 453 kg
Rollback ground line:21°

300CX Loader

Dump time:4.2s
Attachment:Deere quick-attach, skid steer (optional)
Dump angle:41.1°
Lower time:2.1s
Raise time:3.6s
Bucket width:61 inches / 154 cm
Reach dumped:22 inches / 55 cm
Reach ground:58.6 inches / 148 cm
Height at pin:102 inches / 259 cm
Rollback time:1.8s
Breakout at pin:3327 lbs / 1509 kg
Rollback raised:119°
Clearance dumped:79.6 inches / 202 cm
Lift 1.5m at pin:2125 lbs / 963 kg
Lift full at pin:1598 lbs / 724 kg
Breakout at 500mm:2416 lbs / 1095 kg
Lift 1.5m at 500mm:1649 lbs / 747 kg
Lift full at 500mm:1122 lbs / 508 kg
Rollback ground line:31°

60" Mower deck

Type:mid-mount John Deere
Blades:3-blade
Cutting width:60 inches / 152 cm

John Deere 47 Backhoe

Weight:1047 lbs / 474 kg
Swing Arc:180°
Backhoe type:John Deere 47 Backhoe
Bucket force:2840 lbs / 1288 kg
Loading height:70 inches / 177 cm
Bucket Rotation:180°
Reach from pivot:114 inches / 289 cm
Dipperstick force:2005 lbs / 909 kg
2-Foot flat digging depth:90 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