The David Brown 1390 is a 2WD or 4WD utility tractor manufactured by J.I. Case in Meltham Mills, Huddersfield, England from 1980 to 1984. The David Brown 1390 is equipped with a 3.6 L (219.0 cu·in) four-cylinder diesel engine and a synchromesh with hydraulic dry disc clutch transmission with 12 forward and 4 reverse gears.
The David Brown 1390 utility tractor used the J.I. Case engine. It is a 3.6 L, 3,589 cm2, (219.0 cu·in) four-cylinder natural aspirated diesel engine with 100.0 mm (3.94 in) of the cylinder bore and 114.0 mm (4.49 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 60.8 PS (44.7 kW; 60.0 HP) at 2,200 rpm of PTO output power.
The David Brown 1390 is equipped with hydrostatic power steering, mechanical drum brakes, two-post ROPS or cab (optional), and 72.0 liters (19 US gal.; 15.8 Imp. gal) fuel tank.
David Brown 1390 Specifications
| General Specifications | |
| Model | David Brown 1390 |
| Length | 3,420 mm (134.6 in) |
| Width | – |
| Height | 2,230 mm (87.8 in) |
| Wheel base | 2,130 mm (83.9 in) |
| Weight | 2,495 kg (5,501 lbs) |
| Fuel tank capacity | 72.0 liters (19 US gal.; 15.8 Imp. gal) |
| Battery | 12V |
| Cabin type | Two-post ROPS or Cab (optional) |
| Engine | |
| Engine model | J.I. Case |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Diesel |
| Displacement | 3.6 L, 3,589 cm2, (219.0 cu·in) |
| Bore and stroke | 100.0 mm X 114.0 mm (3.94 in X 4.49 in) |
| Compression ratio | 17.0:1 |
| Horsepower | 60.8 PS (44.7 kW; 60.0 HP) at 2,200 rpm |
| Starter | Electric |
| Oil capacity: | 7.5 L (7.9 US. qt, 6.6 Imp. qt.) |
| Coolant capacity: | 14.0 L (14.8 US. qt, 12.3 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | Hydrostatic power |
| Brakes | Mechanical drum |
| Transmission model | |
| Transmission type | Synchromesh with hydraulic dry disc clutch |
| Gears | 12 forward and 4 reverse |
| Speed | Forward: 24.1 kmh (15 mph) Reverse: 13.8 (8.6 mph) |
| Transmission oil capacity | 27.0 L (7.1 US. gal, 5.9 Imp. gal.) |
| Tires | |
| Front tires | Ag: 7.50-16 |
| Rear tires | Ag: 16.9-30 |
| Three-Point Hitch | |
| Caterogy | II/I |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 540/1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Valves | 1 or 2 |
| Pump flow | 15.3 gpm (57.9 lpm) |
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