John Deere
John Deere 3720
The John Deere 3720 is a compact utility tractor produced from 2005 to 2013 as part of the 3000 Twenty Series. It features a 44 hp turbocharged Yanmar 3-cylinder diesel engine, hydrostatic transmission with infinite forward and reverse speeds, and four-wheel drive. The tractor offers power steering, wet disc brakes, and a two-post foldable ROPS with an optional cab. It has a wheelbase of 68 inches and weighs between 2900 and 3570 pounds depending on configuration. The 3720 supports a variety of attachments including a 60" mid-mount mower deck, front-end loaders (300X and 300CX), and a John Deere 47 backhoe. It is built in Augusta, Georgia, USA.
Power44 hp
Founded2005 - 2013
Model3720
Technical Specifications
Detailed specifications and technical data for John Deere 3720
Power
| Engine power | 44 hp (32.8 kW) |
|---|
Engine
| Type | turbocharged diesel |
|---|---|
| Model | Yanmar 3TNV84HT |
| Power | 44 hp (32.8 kW) |
| Torque | 101.1 lb-ft (137.1 Nm) |
| Cooling | liquid-cooled |
| Cylinders | 3-cylinder |
| Rated RPM | 2600 |
| Torque RPM | 1560 |
| Bore/Stroke | 3.3x3.54 inches (84 x 90 mm) |
| Fuel system | direct injection |
| Displacement | 91.5 ci (1.5 L) |
| Oil capacity | 6 qts (5.7 L) |
| Starter volts | 12 |
| Coolant capacity | 5.6 qts (5.3 L) |
| Compression ratio | 18.5:1 |
Capacity
| Cab Fuel | 11.8 gal (44.7 L) |
|---|---|
| ROPS Fuel | 13.5 gal (51.1 L) |
| Hydraulic system | 6.8 gal (25.7 L) |
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 500 |
| Battery volts | 12 |
| Cab Charging amps | 75 |
| ROPS 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 foldable ROPS. Cab optional. |
|---|---|
| Drive | Four-wheel drive |
| Brakes | Wet disc brakes |
| Steering | power |
Production
| Type | Compact Utility tractor |
|---|---|
| Series | 3000 Twenty Series |
| Built in | Augusta, Georgia, USA |
| Years produced | 2005 - 2013 |
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) Rollback time1.7s Reach (dumped)30.4 inches (77 cm) Reach (ground)54.4 inches (138 cm) Height (at pin)90 inches (228 cm) 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 time4.2s AttachmentDeere quick-attach, skid steer (optional) Dump angle41.1° Lower time2.1s Raise time3.6s Bucket width61 inches (154 cm) Rollback time1.8s Reach (dumped)22 inches (55 cm) Reach (ground)58.6 inches (148 cm) Height (at pin)102 inches (259 cm) 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 | 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 |
| Controls | 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) | 2,530 lbs (1147 kg) |
Serial Numbers
| 2005 | 170001 |
|---|---|
| 2006 | 280001 |
| 2007 | 380001 |
| 2008 | 480001 |
| 2009 | 522001 |
Dimensions & Tires
| Width | 52.4 inches (Minimum) (133 cm) |
|---|---|
| Length | 120.2 inches (305 cm) |
| Wheelbase | 68 inches (172 cm) |
| Cab Weight | 3,570 lbs (1619 kg) |
| Rear tread | 40.6/45.3/48.9/53.1/56.6 inches (103/115/124/134/143 cm) |
| ROPS Weight | 2,900 lbs (1315 kg) |
| 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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