The John Deere 790 is a 2WD or 4WD compact utility tractor manufactured by the Yanmar for John Deere from 2000 to 2007. The John Deere 790 is equipped with 1.5 L three-cylinder diesel engine and sliding gear transmission with 8 forward and 2 reverse gears.
The John Deere 790 utility tractor is equipped with manual steering for the 2WD version or hydrostatic power steering for 4WD version, independent dry shoe brakes, open operator station with ROPS (rollover protection structure) and 24.0 liters (6.3 US gal.; 5.3 Imp. gal) fuel tank.
The tractor could be equipped with the following engines:
- From 2000 to 2002 the JD 790 used the Yanmar 3TNE84-JK engine. It is a 1.5 L, 1,496 cm2, (91.3 cu·in) three-cylinder natural aspirated diesel engine with 84.0 mm (3.31 in) of the cylinder bore and 90.0 mm (3.54 in) of the piston stroke. The compression ratio rating is 18.0:1. This engine produced 30.5 PS (22.4 kW; 30 HP) of gross output power and 25.3 PS (18.6 KW; 25.0 HP) of PTO horsepower.
- After 2003 this compact tractor used the Yanmar 3TNV82A engine. It is a 1.3 L, 1,330 cm2, (81.2 cu·in) three-cylinder natural aspirated diesel engine. The cylinder bore is 82.0 mm (3.23 in) and the piston stroke is 84.0 mm (3.31 in). The compression ratio ratin is 18.0:1. This engine produced 30.5 PS (22.4 kW; 30 HP) of gross output power and 25.3 PS (18.6 KW; 25.0 HP) of PTO horsepower.
Following attachments are available for JD 790 utility tractor:
- Mid-mount John Deere 60 in (1,520 mm) three-blade mower deck with hydraulic lift
- John Deere 70 loader
- John Deere 419 loader
- John Deere 7 backhoe
John Deere 790 Specifications
| General Specifications | |
| Model | John Deere 790 |
| Length | 2,820 mm (111 in) |
| Width | 1,360 mm (53.5 in) |
| Height | 2,080 mm (81.9 in) |
| Wheel base | 1,550 mm (61 in) |
| Weight | Early 2WD: 895 kg (1,973 lbs) Early 4WD: 976 kg (2,150 lbs) 2WD: 875 kg (1,929 lbs) 4WD: 930 kg (2,050 lbs) |
| Fuel tank capacity | 24.0 liters (6.3 US gal.; 5.3 Imp. gal) |
| Battery | 12V Group 45 500 CCA |
| Cabin type | Open operator station with ROPS |
| Engine | |
| Engine model | Yanmar 3TNE84-JK |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 3 |
| Fuel type | Diesel |
| Displacement | 1.5 L, 1496 cm2, (91.3 cu·in) |
| Bore and stroke | 84.0 mm X 90.0 mm (3.31 in X 3.54 in) |
| Compression ratio | 18.0:1 |
| Horsepower | 30.5 PS (22.4 kW; 30 HP) |
| Starter | Electric |
| Oil type | API: CC |
| Oil capacity: | 4.1 L (4.33 US. qt, 3.61 Imp. qt.) |
| Coolant capacity: | 4.8 L (5.07 US. qt, 4.22 Imp. qt.) |
| Engine | |
| Engine model | Yanmar 3TNV82A |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 3 |
| Fuel type | Diesel |
| Displacement | 1.3 L, 1330 cm2, (81.2 cu·in) |
| Bore and stroke | 82.0 mm X 84.0 mm (3.23 in X 3.31 in) |
| Compression ratio | 18.0:1 |
| Horsepower | 30.5 PS (22.4 kW; 30 HP) |
| Starter | electric |
| Oil type | API: CC |
| Oil capacity: | 4.1 L (4.33 US. qt, 3.61 Imp. qt.) |
| Coolant capacity: | 4.8 L (5.07 US. qt, 4.22 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | Manual (2WD) and hydrostatic power (4WD) |
| Brakes | Independent dry shoe |
| Transmission model | – |
| Transmission type | Sliding gear |
| Gears | 8 forward and 2 reverse |
| Speed | Forward: 19.0 kmh (11.8 mph) Reverse: 5.5 (3.4 mph) |
| Transmission oil capacity | 15.0 L (15.85 US. qt, 13.2 Imp. qt.) |
| Front axle gearcase (4WD) | 2.13 L (2.25 US. qt, 1.87 Imp. qt.) |
| Tires | |
| Front tires | Ag: 6.00-12 (early); 5.00-15 (2WD); 7.00-14 (MFWD) Lawn/turf: 25×8.50-14 Industrial: 25×8.50-14 |
| Rear tires | Ag: 12.4-16 (early); 11.2-24 Lawn/turf: 13.6-16 Industrial: 15.0-19.6 |
| Three-Point Hitch | |
| Caterogy | I |
| Control type | – |
| Lift capacity | 370 kg (816 lbs) |
| PTO (Power take-off shaft) | |
| Middle PTO type | – |
| Middle PTO spped | 2,100 rpm |
| Rear PTO type | Transmission or live (two-stage clutch) |
| Rear PTO spped | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | 15.0 L (15.85 US. qt, 13.2 Imp. qt.) |
| Pressure | 2,050 psi (141.3 bar) |
| Pump flow | 5.4 gpm (20.4 lpm) |
| Steering flow | 4.2 gpm (15.9 lpm) |
Be the first to comment