| Manufacturer |
David Brown |
| Price |
30,000(USD) |
| Model |
1690 |
| Equipment Type |
Utility Tractors |
| Factory |
Meltham Mills, Huddersfield, England |
NEBRASKA TRACTOR TEST 1383 2
| Description |
Diesel 12-speed synchro 4WD March 27 - April 21, 1981 Link: Nebraska Tractor Test 1383 file PTO performance Drawbar performance Gear 3-2 used for power test Gear 3-1 used for pull test |
| Power at rated engine speed |
90.39hp / 67.4kW |
| Fuel use |
5.5gal/hour / 20.8l/hour |
| Power at rated PTO speed |
87.76hp / 65.4kW |
| Max power |
72.55hp / 54.1kW |
| Max pull |
10536lbs / 4779kg |
DAVID BROWN 1690 POWER
| PTO (claimed) |
90hp / 67.1kW |
| Drawbar (tested) |
72.55hp / 54.1kW |
| PTO (tested) |
90.39hp / 67.4kW |
ENGINE DETAIL
The David Brown 1690 tractor features a robust J.I. Case 6-cylinder diesel engine with a displacement of 5.4L, offering strong torque and efficiency for agricultural tasks. With a compression ratio of 16:1 and a rated RPM of 2200, it strikes a balance between power output and fuel efficiency, making it suitable for heavy-duty applications. However, the dual paper element air cleaner may require more frequent maintenance in dusty environments, potentially increasing operational downtime.
| Description |
J.I. Case diesel 6-cylinder liquid-cooled |
| Displacement |
329ci / 5.4L |
| Bore/Stroke |
3.939x4.50inches / 100x 114 mm |
| Air cleaner |
dual paper elements |
| Compression |
16:1 |
| Rated RPM |
2200 |
| Starter volts |
12 |
| Coolant capacity |
16qts / 15.1L |
DAVID BROWN 1690 ENGINE
The David Brown 1690 tractor is powered by a robust J.I. Case 5.4L 6-cylinder diesel engine, providing substantial torque for heavy-duty applications. With a fuel tank capacity of 26 gallons (98.4 liters), it offers extended operational time between refueling, ideal for prolonged fieldwork. However, owners should be aware of potential challenges with parts availability due to the age and niche nature of this model.
| Description |
J.I. Case 5.4L 6-cyl diesel |
| Fuel tank |
26gal / 98.4L |
TRANSMISSIONS OVERVIEW
The David Brown 1690 tractor features a 12-speed synchromesh transmission combined with a 12-speed partial power shift, allowing for smooth gear changes and enhanced maneuverability in varied terrains. This dual transmission system provides better torque management and fuel efficiency, making it suitable for both agricultural and industrial applications. However, potential challenges include the complexity of the transmission system, which may require more maintenance and expertise for repairs.
| Description |
12-speed synchromesh 12-speed partial power shift |
TRANSMISSION 1
The David Brown 1690 tractor features a synchromesh transmission with 12 forward and 4 reverse gears, providing smooth gear changes and enhanced operational efficiency in various farming tasks. The hydraulic dry disc clutch offers reliable engagement and durability, suitable for intensive work schedules. However, users should be aware that synchromesh systems may require more maintenance to ensure optimal performance over time.
| Type |
synchromesh |
| Gears |
12 forward and 4 reverse |
| Clutch |
hydraulic dry disc |
TRANSMISSION 2
The David Brown 1690 tractor features a partial power shift system with 12 forward and 4 reverse gears, enabling smooth transitions and increased efficiency during operation. Its hydraulic dry disc clutch provides effective engagement and disengagement, which is beneficial for tasks requiring frequent gear changes. However, operators may face a learning curve with the power shift mechanism, particularly in heavy-duty scenarios, where precise control is essential for optimal performance.
| Type |
partial power shift |
| Gears |
12 forward and 4 reverse |
| Clutch |
hydraulic dry disc |
| Description |
Three gears, plus reverse, with a four-range power shift. |
MECHANICAL
The David Brown 1690 tractor features a 4x2 drive system, with optional 4WD for enhanced traction on varied terrains, making it suitable for diverse agricultural scenarios. Its power steering improves maneuverability, while hydraulic wet disc brakes offer reliable stopping power, critical for heavy loads or slope work. The 12-speed synchromesh transmission allows for smooth gear transitions, ideal for fieldwork, but the absence of a fully enclosed cab could expose operators to adverse weather conditions.
| Chassis |
4x2 2WD/4x4 MFWD 4WD |
| Steering |
power |
| Brakes |
hydraulic wet disc |
| Cab |
Two-post ROPS. Cab optional. |
| Transmissions |
12-speed synchromesh/12-speed partial power shift |
HYDRAULICS
| Type |
open center |
| Pump flow |
20gpm / 75.7lpm |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540/1000 |
DAVID BROWN 1690 TIRES
The David Brown 1690 tractor features a robust tire configuration, with 10.00-16 front tires providing good maneuverability and stability, while the 18.4-34 rear tires enhance traction, especially in agricultural applications. This setup is advantageous for working on larger fields, offering excellent weight distribution for tillage and hauling tasks. However, the limited turning radius due to the tire size might present challenges in tighter spaces or smaller farms.
| Ag front |
10.00-16 |
| Ag rear |
18.4-34 |
DIMENSIONS
| Wheelbase |
100.5inches / 255cm |
| 4WD ROPS Operating weight |
8755lbs / 3971kg |
| Ballasted weight |
12470lbs / 5656kg |
| 4WD Front tread |
59 to 71inches / 149to 180 cm |
| Rear tread |
60.75 to 85inches / 154to 215 cm |
DIMENSIONS & TIRES
The David Brown 1690 tractor features a substantial wheelbase of 100.5 inches, which enhances stability and load distribution, making it suitable for heavy-duty applications. Weighing 8755 lbs, it can handle significant implements but may pose challenges in maneuverability on soft ground or uneven terrain. The tire configuration, with wider rear tires (18.4-34), provides excellent traction, beneficial for agricultural tasks, although front tire size (10.00-16) may limit front-end load capacity if extensive front attachments are utilized.
| Wheelbase |
100.5inches / 255cm |
| Weight |
8755lbs / 3971kg |
| Front tire |
10.00-16 |
| Rear tire |
18.4-34 |
J.I. CASE 66L LOADER
| Height (to pin) |
126.8inches / 322cm |
| Dump reach |
43inches / 109cm |
| Dump angle |
45° |
| Rollback angle |
12° |
| Breakout force (at pin) |
4775lbs / 2165kg |
| Lift to full height (at pin) |
2100lbs / 952kg |
| Bucket width |
48inches / 121cm/60inches / 152cm/66inches / 167cm/72inches / 182cm/83inches / 210cm |
1690 SERIAL NUMBERS
| Location |
Serial number stamped into the top of the tractor's frame on the right side, next to the engine. |
| 1980 |
11120101 |
| 1981 |
11211841 |
| 1982 |
11213684 |
| 1983 |
11214373 |
ELECTRICAL
| Ground |
negative |
| Battery volts |
12 |
