| Manufacturer | 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 Case 4690 tractor features a robust turbocharged intercooled diesel engine with a displacement of 8.3L and a high power output of 261hp, making it suitable for heavy-duty tasks. Its 15.8:1 compression ratio optimizes fuel efficiency and enhances torque delivery at rated RPM of 2200, providing excellent performance for field operations. However, the 48-quart coolant capacity necessitates diligent maintenance to prevent overheating during prolonged use, especially in demanding agricultural environments.
| 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 Case 4690 tractor is powered by an 8.3L 6-cylinder diesel engine, offering a balance of torque and efficiency for various agricultural applications. Its robust design provides high durability and the capability to handle demanding tasks, but fuel consumption may be higher compared to smaller engines. When considering use in field operations, ensure adequate maintenance to optimize engine performance and longevity.
| Description | Case 8.3L 6-cyl diesel |
TRANSMISSION
The Case 4690 features a three-speed powershift transmission with a total of 12 forward and 4 reverse gears, enabling smooth power delivery and efficient speed adjustments under load. The hydraulic wet disc clutch provides reliable engagement and minimizes wear, enhancing longevity in demanding applications. However, operators may need to familiarize themselves with the powershift mechanics for optimal performance in varying field conditions.
| 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 Case 4690 tractor's 4x4 4WD chassis offers enhanced traction and stability, making it ideal for diverse terrain and demanding agricultural tasks. Its hydraulic four-wheel steering provides superior maneuverability, facilitating navigation in tight spaces, while the hydraulic dry disc brakes ensure reliable stopping power under load. The standard Silent Guardian cab with air-conditioning enhances operator comfort during prolonged use, though the 12-speed transmission may require more frequent shifts for optimal performance in varying conditions.
| 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 Case 4690 tractor utilizes 18.4-34 agricultural tires both front and rear, providing a balanced footprint for stability and traction in diverse field conditions. This tire size is advantageous for maximizing soil contact and minimizing compaction, essential for efficient tillage and crop cultivation. However, the large tire size may present challenges in tight spaces or on narrow roadways, limiting versatility in certain operational scenarios.
| 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 Case 4690 tractor, with a wheelbase of 102 inches (259 cm), offers enhanced stability and maneuverability, making it suitable for medium to large-scale farming operations. Weighing 22,310 lbs (10,119 kg) and equipped with large 18.4-34 tires, it excels in traction and load-bearing capacity, allowing for effective soil tillage and heavy implement usage. However, its substantial weight may pose challenges in wet conditions, potentially leading to soil compaction or difficulty in mobility on softer terrain.
| 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 |