| Manufacturer |
Case |
| Price |
4,500(USD) |
| Model |
630 |
| Equipment Type |
Utility Tractors |
| Factory |
Rock Island, Illinois, USA |
VARIANTS
NEBRASKA TRACTOR TEST 787 2
| Description |
Diesel Case-O-Matic 2WD April 7 - 21, 1961 Link: Nebraska Tractor Test 787 file PTO performance Drawbar performance Gear 5 used for power test Gear 1 used for pull test |
| Power at rated engine speed |
48.85hp / 36.4kW |
| Fuel use |
3.5gal/hour / 13.2l/hour |
| Power at rated PTO speed |
45.24hp / 33.7kW |
| Max power |
43.71hp / 32.6kW |
| Max pull |
7,190lbs / 3261kg |
NEBRASKA TRACTOR TEST 788 2
| Description |
Diesel 12-speed 2WD April 10 - 22, 1961 Link: Nebraska Tractor Test 788 file PTO performance Drawbar performance Gear 7 used for power test Gear 1 used for pull test |
| Power at rated engine speed |
48.24hp / 36.0kW |
| Fuel use |
3.2gal/hour / 12.1l/hour |
| Power at rated PTO speed |
47.40hp / 35.3kW |
| Max power |
40.68hp / 30.3kW |
| Max pull |
6,987lbs / 3169kg |
J.I. CASE 630 POWER
| Belt (claimed) |
50hp / 37.3kW |
| Plows |
4 |
| Drawbar (tested) |
43.71hp / 32.6kW |
| PTO (tested) |
48.85hp / 36.4kW |
ENGINE DETAIL
The Case 630's 3.1L diesel engine with a 17.5:1 compression ratio offers robust torque characteristics, making it ideal for heavy-duty applications. However, the relatively low RPM rating of 2250 may limit its top-end power, affecting speed during light-duty tasks. Overall, the combination of a liquid-cooled system and a 4-cylinder layout provides a balance of efficiency and reliability for agricultural environments.
| Description |
J.I. Case diesel 4-cylinder liquid-cooled |
| Displacement |
188.4ci / 3.1L |
| Bore/Stroke |
3.8125x4.125inches / 97x 105mm |
| Compression |
17.5:1 |
| Rated RPM |
2250 |
| Starter volts |
12 |
J.I. CASE 630 ENGINE
The Case 630 tractor is equipped with a 3.1L 4-cylinder diesel engine, providing a good balance of power and fuel efficiency for agricultural tasks. With a fuel tank capacity of 22 gallons (83.3 liters), it offers extended operational time between refueling, beneficial for larger fieldwork without interruptions. However, the engine’s size may limit power output for heavy-duty applications, making it more suitable for moderate towing and light cultivation tasks.
| Description |
J.I. Case 3.1L 4-cyl diesel |
| Fuel tank |
22gal / 83.3L |
TRANSMISSIONS OVERVIEW
The Case 630 tractor features an 8-speed torque converter coupled with a 12-speed transmission, allowing for smooth power delivery and enhanced versatility in various field conditions. This design optimizes torque at lower speeds, providing better traction for heavy-duty applications, but may result in increased complexity in maintenance. Ideal for operations requiring frequent speed adjustments, it facilitates efficient work on diverse terrains, albeit the multi-speed setup could demand more operator proficiency.
| Description |
8-speed torque converter 12-speed 8-speed 4-speed gear |
TRANSMISSION 1
The Case 630 tractor features a Case-o-Matic transmission with a torque converter, offering seamless power transfer and enhanced operational efficiency for various farming tasks. Its 8 forward and 2 reverse gears provide good adaptability for both fieldwork and transport applications, while the hydraulic wet disc clutch ensures smooth engagement and durability under load. However, potential challenges may include higher maintenance requirements and repair costs associated with the hydraulic system compared to traditional manual transmissions.
| Transmission |
Case Case-o-matic |
| Type |
torque converter |
| Gears |
8 forward and 2 reverse |
| Clutch |
hydraulic wet disc |
| Description |
Tractors equipped with the Case-o-Matic were sometimes referred to as the 630C |
TRANSMISSION 2
The Case 630 tractor features a Case Tripl-Range transmission that offers 12 forward and 3 reverse gears, enabling versatile speed and torque control for various agricultural tasks. The dry disc clutch provides reliable engagement but may require periodic adjustment to maintain optimal performance. Overall, its transmission design is advantageous for operations requiring frequent speed changes, although it may pose challenges during extended heavy-duty use without proper maintenance.
| Transmission |
Case Tripl-Range |
| Gears |
12 forward and 3 reverse |
| Clutch |
dry disc |
TRANSMISSION 3
The Case 630 tractor features a Case Dual-Range transmission with 8 forward and reverse gears, providing versatility for various field applications. The dry disc clutch offers reliability and reduced maintenance compared to wet clutches but may present challenges in terms of engagement smoothness and potential wear over time. For optimal performance, ensure regular inspection of the clutch for efficient power transfer during demanding tasks like plowing or towing.
| Transmission |
Case Dual-Range |
| Gears |
8 forward and reverse |
| Clutch |
dry disc |
TRANSMISSION 4
The Case 630 tractor features a simple gear system with 4 forward and 1 reverse, which allows for straightforward operation and is adequate for light to medium agricultural tasks. The dry disc clutch provides reliable engagement and disengagement, but it may require more maintenance over time compared to wet clutches in high-use scenarios. While the limited gearing may pose challenges in terms of speed adaptability on varying terrain, its straightforward mechanics can be advantageous for users needing ease of repair and lower initial costs.
| Type |
gear |
| Gears |
4 forward and 1 reverse |
| Clutch |
dry disc |
MECHANICAL
The Case 630 tractor features a 4x2 2WD chassis, offering reduced traction in challenging terrains, but is suitable for flat or firmer landscapes. The power-assisted steering enhances maneuverability, while the differential mechanical dry disc brakes provide reliable stopping power, albeit with potential wear in high-use scenarios. With an 8-speed torque converter transmission, it offers versatility in speed selection, making it effective for various agricultural tasks, but operators should consider the limitations of a non-cab open station in adverse weather conditions.
| Chassis |
4x2 2WD |
| Steering |
power assist |
| Brakes |
differential mechanical dry disc |
| Cab |
Open operator station |
| Transmissions |
8-speed torque converter 12-speed 8-speed 4-speed gear |
HYDRAULICS
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
continuous/independent (Case-o-matic) |
| Rear RPM |
540 (1.375)/540/1000 (1.375) |
J.I. CASE 630 TIRES
The Case 630 tractor features an agricultural tire configuration with front tires sized 7.50-16 and rear tires at 16.9-28, providing a balanced load distribution and enhanced traction in various field conditions. The larger rear tires improve ground contact and stability, crucial for plowing and towing, while the narrower front tires facilitate maneuverability. However, the weight distribution may challenge stability on uneven terrain, necessitating careful operation during implement engagement.
| Ag front |
7.50-16 |
| Ag rear |
16.9-28 |
DIMENSIONS
| Front tread |
52inches / 132cm |
| Rear tread |
48 to 76inches / 121to 193cm |
J.I. CASE 630 WEIGHT
| Operating |
4,600lbs / 2086kg 4,800lbs / 2177kg (Case-o-Matic) |
| Ballasted |
9,725lbs / 4411kg |
DIMENSIONS & TIRES
The Case 630 tractor's weight range of 4600 to 4800 pounds provides a good balance for stability during field operations, especially on uneven terrain. The front tire size of 7.50-16 enhances maneuverability, while the larger rear tire size of 16.9-28 improves traction and load-carrying capacity. However, the weight distribution may lead to challenges in soft or wet soils, where the rear tires may sink, necessitating careful operation planning in such conditions.
| Weight |
4600 to 4800 pounds |
| Front tire |
7.50-16 |
| Rear tire |
16.9-28 |
630 SERIAL NUMBERS
| Location |
instrument panel |
| 1960 |
6144001 |
| 1961 |
6162601 |
| 1962 |
8190001 |
| 1963 |
8208001 |
BELT PULLEY
| Diameter |
9.25inches / 23cm |
| Width |
6inches / 15cm |
ELECTRICAL
| Ground |
positive |
| Batteries |
2 |
| Battery volts |
6 |
