| Manufacturer |
Case |
| 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 |
J.I. CASE 1690 POWER
| PTO (claimed) |
90hp / 67.1kW |
| Drawbar (tested) |
72.55hp / 54.1kW |
| PTO (tested) |
90.39hp / 67.4kW |
ENGINE DETAIL
The Case 1690 tractor features a robust 6-cylinder diesel engine with a displacement of 5.4L and a high compression ratio of 16:1, providing strong torque for demanding agricultural tasks. Its dual paper element air cleaner enhances engine efficiency by ensuring optimal airflow while reducing maintenance needs. However, the 2200 RPM rated speed may limit its performance in high-speed applications, making it more suited for tasks requiring consistent power under load rather than rapid transport.
| 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 |
J.I. CASE 1690 ENGINE
The Case 1690 tractor is powered by a robust 5.4L 6-cylinder diesel engine, providing reliable torque for demanding agricultural tasks. With a fuel tank capacity of 26 gallons (98.4L), it offers extended operation between refuels, ideal for larger fields. However, potential challenges include engine maintenance due to the complexity of a larger diesel engine, which may affect operational downtime if not managed properly.
| Description |
J.I. Case 5.4L 6-cyl diesel |
| Fuel tank |
26gal / 98.4L |
TRANSMISSIONS OVERVIEW
The Case 1690 tractor features a robust 12-speed synchromesh transmission combined with a partial power shift, enhancing its operational versatility and efficiency. This transmission system allows for smoother gear transitions, improving both speed management and fuel efficiency during varied agricultural tasks. However, the complexity of a partial power shift may pose maintenance challenges and requires operator training to fully leverage its capabilities.
| Description |
12-speed synchromesh 12-speed partial power shift |
TRANSMISSION 1
The Case 1690 tractor features a synchromesh transmission, allowing for smooth gear shifting, which enhances operational efficiency in various field conditions. With 12 forward and 4 reverse gears, it offers versatility in speed and maneuverability, making it suitable for tasks ranging from plowing to transporting. The hydraulic dry disc clutch provides reliable engagement and durability, though it may require regular maintenance to ensure optimal performance.
| Type |
synchromesh |
| Gears |
12 forward and 4 reverse |
| Clutch |
hydraulic dry disc |
TRANSMISSION 2
The Case 1690 tractor features a partial power shift transmission, allowing smooth gear transitions without fully engaging the clutch, beneficial for maintaining momentum in varied field conditions. With 12 forward gears and 4 reverse gears, it offers flexibility and adaptability for different tasks, though the hydraulic dry disc clutch may require vigilant maintenance to prevent wear. This configuration is advantageous in applications requiring rapid speed changes or extensive reversing, such as loader operations or tillage in confined spaces.
| 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 Case 1690 tractor's choice between 2WD and 4WD configurations enhances versatility, with 4WD providing superior traction in challenging terrains. The hydraulic wet disc brakes offer effective stopping power and durability for heavy loads, while the optional cab allows for increased operator comfort. However, the 12-speed transmission may present a learning curve for operators unfamiliar with synchromesh and partial power shift systems, potentially affecting transition efficiency in different field operations.
| 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 |
J.I. CASE 1690 TIRES
The Case 1690 tractor with front tires sized at 10.00-16 and rear tires at 18.4-34 indicates a strong emphasis on stability and traction, particularly beneficial in agricultural applications. The larger rear tires provide enhanced load-bearing capacity and improved grip on uneven terrain, which is crucial for heavy-duty fieldwork. However, the tire size may limit maneuverability in tighter spaces, making it less suitable for small farms or confined areas.
| 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 Case 1690 tractor features a wheelbase of 100.5 inches, providing stability and maneuverability, especially in tight field conditions. Weighing 8755 lbs, it offers substantial traction, making it suitable for heavy-duty tasks, though its heavier weight may limit mobility in soft or muddy terrains. The tire configuration, with front 10.00-16 and rear 18.4-34, enhances lifting capacity and overall performance in plowing or towing applications, but may result in higher ground pressure, necessitating careful soil management.
| 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 |
