| Manufacturer | J.I. Case |
| Price | 81,000(USD) |
| Model | 4690 |
| Equipment Type | Four-wheel Drive 4WD Tractors |
| Factory | Racine, Wisconsin, USA |
NEBRASKA TRACTOR TEST 1329 2
| Description | Diesel 12-speed 4WD October 18 - 26, 1979 Link: Nebraska Tractor Test 1329 file PTO performance Drawbar performance Gear 8 used for power test |
| Power at rated engine speed | 219.62hp / 163.8kW |
| Fuel use | 14.2gal/hour / 53.7l/hour |
| Max power | 189.75hp / 141.5kW |
| Max pull | 24564lbs / 11142kg |
J.I. CASE 4690 POWER
| Engine | 261hp / 194.6kW |
| Drawbar (claimed) | 190hp / 141.7kW |
| PTO (claimed) | 219hp / 163.3kW |
| Drawbar (tested) | 189.75hp / 141.5kW |
| PTO (tested) | 219.62hp / 163.8kW |
ENGINE DETAIL
The J.I. Case 4690 tractor features a robust 8.3L turbocharged intercooled diesel engine, delivering 261hp at a rated RPM of 2200, making it adept for heavy-duty tasks. Its high compression ratio of 15.8:1 enhances fuel efficiency, while the generous coolant capacity of 48 quarts ensures effective thermal management during prolonged operations. Ideal for large-scale agricultural applications, this tractor strikes a balance between power and operational stability, though potential challenges may include higher maintenance needs due to its complex turbocharging system.
| Description | Case turbocharged intercooled diesel 6-cylinder liquid-cooled |
| Displacement | 504ci / 8.3L |
| Bore/Stroke | 4.625x5.00inches / 117x 127mm |
| Power | 261hp / 194.6kW |
| Compression | 15.8:1 |
| Rated RPM | 2200 |
| Starter volts | 12 |
| Coolant capacity | 48qts / 45.4L |
J.I. CASE 4690 ENGINE
The J.I. Case 4690 tractor is powered by a robust Case 8.3L 6-cylinder diesel engine, offering high torque for heavy-duty applications. Its notable pros are excellent fuel efficiency and the ability to handle challenging tasks such as plowing or hauling. However, potential challenges include higher maintenance costs associated with its complex diesel fuel system and potential emission regulations depending on usage scenarios.
| Description | Case 8.3L 6-cyl diesel |
TRANSMISSION
The J.I. Case 4690 tractor features a three-speed powershift transmission with 12 forward and 4 reverse gears, allowing for seamless power transitions and optimal control across various field conditions. The hydraulic wet disc clutch enhances durability and reduces wear, making it suitable for heavy-duty applications. However, operators should be aware of the learning curve associated with managing multiple ranges for efficient operation in diverse scenarios.
| Transmission | three-speed powershift |
| Gears | 12 forward and 4 reverse |
| Clutch | hydraulic wet discs |
| Description | Four gears (1-4) in three power shift ranges, plus reverse range |
MECHANICAL
The J.I. Case 4690 tractor features a 4WD chassis, enhancing traction and stability on varied terrains, making it ideal for heavy-duty agricultural tasks. Its hydraulic four-wheel steering provides superior maneuverability, especially in tight spaces, while the 12-speed transmission allows for versatile speed control to optimize performance. The Silent Guardian cab with air-conditioning improves operator comfort during prolonged use, which can lead to increased productivity, although maintenance of the hydraulic system may present a challenge over time.
| Chassis | 4x4 4WD |
| Steering | hydraulic four-wheel steering |
| Brakes | hydraulic dry disc |
| Cab | Silent Guardian cab standard with air-conditioning |
| Transmission | 12-speed |
CAPACITY
| Fuel | 128gal / 484.5L |
| Hydraulic system | 15.5gal / 58.7L |
HYDRAULICS
| Type | closed center |
| Capacity | 15.5gal / 58.7L |
| Valves | 2 |
| Pump flow | 31gpm / 117.3lpm |
TRACTOR HITCH
| Rear Type | III |
| Rear lift (at 24 | 12750lbs / 5783kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 1000 |
J.I. CASE 4690 TIRES
The J.I. Case 4690 tractor features balanced tire sizes of 18.4-34 for both front and rear, promoting optimal traction and stability in field operations. The large tire diameter enhances ground clearance and reduces soil compaction, beneficial for agricultural applications. However, ensure compatible implements are utilized to match the tractor's weight and power output for effective performance.
| Ag front | 18.4-34 |
| Ag rear | 18.4-34 |
DIMENSIONS
| Wheelbase | 102inches / 259cm |
| Operating weight | 22310lbs / 10119kg |
| Ballasted weight | 25230lbs / 11444kg |
DIMENSIONS & TIRES
The J.I. Case 4690 tractor features a 102-inch wheelbase, providing enhanced stability and maneuverability for field operations and transport. Weighing 22,310 lbs (10,119 kg) allows it to handle heavy implements while minimizing soil compaction. The uniform tire size of 18.4-34 at both front and rear enhances traction and uniform weight distribution, making it suitable for diverse applications such as tilling, planting, and heavy hauling.
| Wheelbase | 102inches / 259cm |
| Weight | 22310lbs / 10119kg |
| Front tire | 18.4-34 |
| Rear tire | 18.4-34 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Battery volts | 12 |