| Manufacturer | J.I. Case |
| Price | - |
| Model | 990 |
| Equipment Type | Utility Tractors |
| Factory | Meltham Mills, Huddersfield, England |
NEBRASKA TRACTOR TEST 1144 2
| Description | Diesel 12-speed 2WD September 17 - October 1, 1973 Link: Nebraska Tractor Test 1144 file PTO performance Drawbar performance |
| Power at rated engine speed | 53.77hp / 40.1kW |
| Fuel use | 3.4gal/hour / 12.9l/hour |
| Power at rated PTO speed | 50.48hp / 37.6kW |
| Max power | 45.68hp / 34.1kW |
| Max pull | 7,335lbs / 3327kg |
J.I. CASE 990 POWER
| Engine (net) | 58hp / 43.3kW |
| Drawbar (claimed) | 45.2hp / 33.7kW |
| PTO (claimed) | 52.9hp / 39.4kW |
| Drawbar (tested) | 45.68hp / 34.1kW |
| PTO (tested) | 53.77hp / 40.1kW |
ENGINE DETAIL
The J.I. Case 990 tractor features a robust David Brown 4-cylinder diesel engine with a moderate displacement of 3.2L, offering a compression ratio of 17:1 that enhances efficiency and torque at low RPMs, ideal for varied agricultural tasks. Its oil bath air cleaner system ensures efficient filtration under demanding conditions, but may require more maintenance than dry filters. With an operational RPM range of 700-2200, it is well-suited for both low-end power needs and efficient cruising at rated conditions, making it versatile for farming applications.
| Description | David Brown diesel 4-cylinder liquid-cooled |
| Displacement | 195ci / 3.2L |
| Bore/Stroke | 3.939x4.00inches / 100x 102 mm |
| Air cleaner | oil bath |
| Compression | 17:1 |
| Rated RPM | 2200 |
| Operating RPM | 700-2200 |
| Starter volts | 12 |
| Oil capacity | 7.9qts / 7.5L |
| Coolant capacity | 14.8qts / 14.0L |
J.I. CASE 990 ENGINE
The J.I. Case 990 tractor is powered by a David Brown 3.2L 4-cylinder diesel engine, offering a balance of efficiency and torque for various agricultural tasks. With a fuel tank capacity of 17.9 gallons (67.8 liters), it allows for extended operational time, beneficial for larger fields but may require larger fuel storage solutions. Potential challenges include ensuring adequate maintenance for optimal engine performance and the availability of parts for the diesel system.
| Description | David Brown 3.2L 4-cyl diesel |
| Fuel tank | 17.9gal / 67.8L |
TRANSMISSION
The J.I. Case 990 features a partially synchronized transmission with 12 forward and 4 reverse gears, allowing for smoother gear transitions, particularly between first and third gears, which enhances operational efficiency in varying field conditions. With a relatively compact dry disc clutch of 280mm and an oil capacity of 28.5 quarts, maintenance routines may be simpler, yet attention should be given to ensure appropriate lubrication and cooling under heavy load. This tractor is ideal for diverse scenarios such as small to medium agricultural tasks but may face challenges with heavier implements due to its power limitations and limited gear ratios in steep terrains.
| Type | partially synchronized |
| Gears | 12 forward and 4 reverse |
| Clutch | 280mm dry disc |
| Oil capacity | 28.5qts / 27.0L |
| Description | Three gears, plus reverse, in four ranges. Synchronized up-shifting between gears 1-2-3 and synchronized down-shifting from 3-to-2. |
MECHANICAL
The J.I. Case 990 tractor features a versatile 4x2 and optional 4x4 MFWD configuration, enhancing traction and stability for diverse field applications. Its hydrostatic power steering offers improved maneuverability, while the hydraulic drum brakes provide reliable stopping power under varying load conditions. With a 12-speed partially synchronized transmission, this tractor balances speed control and operational efficiency, making it suitable for both heavy-duty work and precise applications like tilling or planting.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Steering | hydrostatic power |
| Brakes | hydraulic drum |
| Cab | Weather frame cab standard. |
| Transmission | 12-speed partially synchronized |
HYDRAULICS
| Type | open center |
| Pressure | 2000psi / 137.9bar |
| Total flow | 7.4gpm / 28.0lpm |
TRACTOR HITCH
| Rear Type | II/I |
| Rear lift | 2000lbs / 907kg (recommended)/4250lbs / 1927kg (maximum) |
POWER TAKE-OFF (PTO)
| Rear PTO | transmission/live (optional) |
| Rear RPM | 540/1000 (1.375) |
J.I. CASE 990 TIRES
The J.I. Case 990 tractor features standard agricultural tires, with a front tire size of 6.00-19 for 2WD configurations, and 9.5-24 for 4WD, paired with rear tires of 12.4-36. This configuration offers enhanced traction and stability, particularly beneficial for cultivation and transport tasks in varied agricultural conditions. However, the reliance on narrower front tires in 2WD may lead to reduced maneuverability in soft or muddy terrains compared to the wider front tires of the 4WD variant.
| Standard tires (ag) | Front: 6.00-19. Rear: 12.4-36 (2WD)/Front: 9.5-24. Rear: 12.4-36 (4WD) |
DIMENSIONS
| Wheelbase | 82inches / 208cm |
| Length | 129inches / 327cm |
| Width | 67inches / 170cm (min) |
| Weight | 5760lbs / 2612kg (2WD)/6700lbs / 3039kg (4WD) |
| Clearance (front axle) | 21inches / 53cm (2WD)/15inches / 38cm (4WD) |
| Clearance (drawbar) | 16inches / 40cm |
| Front tread | 60/64/68/72inches / 152/162/172/182 cm(4WD) |
| Rear tread | 52/56/60/64/68/72/76inches / 132/142/152/162 / 172/182/193 cm |
J.I. CASE 990 HEIGHT
| Cab | 92.5inches / 234cm (Low-Profile)/104inches / 264cm (De-Luxe Cab)/99inches / 251cm (Q-Cab) |
DIMENSIONS & TIRES
The J.I. Case 990 tractor features a wheelbase of 82 inches, which enhances maneuverability, especially in tight fields. With a weight range of 5760 to 6700 pounds, this tractor offers stability during operation but can limit its transportability. Its 2WD configuration and tire sizes (6.00-19 front and 12.4-36 rear) suggest a focus on medium-duty applications; however, reduced traction and performance on difficult terrain may be a challenge compared to 4WD counterparts.
| Wheelbase | 82inches / 208cm |
| Weight | 5760 to 6700 pounds |
| Front tire | 6.00-19 |
| Rear tire | 12.4-36 (2WD) |
990 SERIAL NUMBERS
| Location | Serial number on the right side of the tractor frame. |
| 1961 | 440001 |
| 1962 | 441323 |
| 1963 | 450376 |
| 1964 | 460376 |
| 1965 | 472273 |
| 1966 | 483768 |
| 1967 | 496283 |
| 1968 | 504690 |
| 1969 | 808150 |
| 1970 | 818301 |
| 1971 | 826009 |
| 1972 | 850600 |
| 1973 | 854403 |
| 1974 | 859367 |
| 1975 | 863900 |
| 1976 | 11070001 |
| 1977 | 11080236 |
| 1978 | 11089141 |
| 1979 | 11096828 |
| 1980 | 11104577 |
ELECTRICAL
| Charging system | alternator |
| Battery volts | 12 |
| Battery AH | 96 |