The David Brown 1690 is a 2WD or 4WD utility tractor manufactured by David Brown (a part of J.I. Case) in Meltham Mills, Huddersfield, England from 1980 to 1984. The David Brown 1690 is equipped with a 5.4 L (329.0 cu·in) six-cylinder diesel engine and one of two transmissions: a synchromesh transmission with 12 forward and 4 reverse gears and hydraulic dry disc clutch or a partial power shift transmission with 12 forward and 4 reverse gears and hydraulic dry disc clutch.
The DB 1690 utility tractor used the J.I. Case engine. It is a 5.4 L, 5,391 cm2, (329.0 cu·in) six-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 16.0:1. This engine produced 91.3 PS (67.1 kW; 90.0 HP) at 2,200 rpm of PTO output power.
The David Brown 1690 is equipped with power steering, hydraulic wet disc brakes, two-post ROPS or cab (optional), and 98.4 liters (26 US gal.; 21.6 Imp. gal) fuel tank.
David Brown 1690 Specifications
| General Specifications | |
| Model | David Brown 1690 |
| Length | – |
| Width | – |
| Height | – |
| Wheel base | 2,550 mm (100.4 in) |
| Weight (operating) | 4WD ROPS: 3,970 kg (8,752 lbs) |
| Fuel tank capacity | 98.4 liters (26 US gal.; 21.6 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 | 6 |
| Fuel type | Diesel |
| Displacement | 5.4 L, 5,391 cm2, (329.0 cu·in) |
| Bore and stroke | 100.0 mm X 114.0 mm (3.94 in X 4.49 in) |
| Compression ratio | 16.0:1 |
| Horsepower | 91.3 PS (67.1 kW; 90.0 HP) at 2,200 rpm |
| Starter | Electric |
| Coolant capacity: | 15.0 L (15.9 US. qt, 13.2 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Hydraulic wet disc |
| Transmission model | – |
| Transmission type | Synchromesh with hydraulic dry disc clutch |
| Gears | 12 forward and 4 reverse |
| Speed | Forward: 24.3 kmh (15.1 mph) Reverse: 14.3 (8.9 mph) |
| Transmission model | – |
| Transmission type | Partial power shift with hydraulic dry disc clutch |
| Gears | 12 forward and 4 reverse |
| Tires | |
| Front tires | Ag: 10.00-16 |
| Rear tires | Ag: 18.4-34 |
| Three-Point Hitch | |
| Category | II |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 540/1000 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Pump flow | 20.0 gpm (75.7 lpm) |
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