| Manufacturer | J.I. Case |
| Price | 5,700(USD) |
| Model | 730 |
| Equipment Type | Standard-Tread Tractors |
| Factory | Racine, Wisconsin, USA |
VARIANTS
| 732 | Western Special diesel |
| 733 | high-clearance diesel |
| 734 | orchard diesel |
| 740 | row-crop gas |
| 742 | Western Special gas |
| 743 | high-clearance gas |
| 744 | orchard gas |
J.I. CASE 730 POWER
| PTO (claimed) | 56hp / 41.8kW |
| Plows | 5 |
ENGINE DETAIL
The J.I. Case 730 is equipped with a robust 4-cylinder diesel engine with a displacement of 267 cubic inches (4.4L), providing a compression ratio of 15.2:1 for efficient combustion at a rated RPM of 1700 (Dual-Range) or 1900 (Case-o-Matic). With solid oil (9 quarts) and coolant capacities (30 quarts), this tractor is designed for prolonged operation, making it suitable for heavy-duty agricultural tasks. However, its power output may be limited by the lower RPM range compared to modern tractors, which could impact performance in more demanding applications.
| Description | J.I. Case diesel 4-cylinder liquid-cooled |
| Displacement | 267ci / 4.4L |
| Bore/Stroke | 4.125x5.00inches / 105x 127mm |
| Compression | 15.2:1 |
| Rated RPM | 1700 (Dual-Range)/1900 (Case-o-Matic) |
| Firing order | 1-3-4-2 |
| Starter volts | 12 |
| Oil capacity | 9qts / 8.5L |
| Coolant capacity | 30qts / 28.4L |
J.I. CASE 730 ENGINE
The J.I. Case 730 tractor is equipped with a robust 4.4L 4-cylinder diesel engine, delivering efficient power suitable for agricultural tasks. Key advantages include higher torque output for plowing and towing applications, while potential challenges may involve sourcing parts due to its vintage status. For optimal performance, regular maintenance and checks on diesel fuel quality are crucial to prevent injector issues.
| Description | J.I. Case 4.4L 4-cyl diesel |
TRANSMISSIONS OVERVIEW
The J.I. Case 730 tractor features an 8-speed torque converter transmission, providing smooth power delivery and better efficiency during heavy-duty operations. However, the unsynchronized gear shifting may pose a challenge for inexperienced operators, potentially leading to gear grinding during engagement. This tractor is optimal for applications requiring variable speed control, but operators should be trained to manage the gear shifts effectively to avoid potential transmission wear.
| Description | 8-speed torque converter 8-speed unsynchronized |
TRANSMISSION 1
The J.I. Case 730 tractor features a Case-o-matic transmission with a torque converter, facilitating smooth power delivery and enhanced efficiency during operation. The 8 forward and 2 reverse gears provide versatility for various agricultural tasks, allowing for better control and adaptability across diverse terrains. However, the complexity of the Case-o-matic system can lead to increased maintenance requirements compared to traditional gear transmissions.
| Transmission | Case-o-matic |
| Type | torque converter |
| Gears | 8 forward and 2 reverse |
TRANSMISSION 2
The J.I. Case 730 features a dual-range unsynchronized transmission, providing 8 forward and 2 reverse gears, allowing for versatile speed adjustments suitable for various applications. The mechanical dry disc clutch can deliver consistent engagement but may require more maintenance compared to wet clutch systems, particularly in high-torque scenarios. Optimal for utility tasks, the configuration allows for efficient operation in the field, though operators may need to master gear shifting due to the lack of synchronization.
| Transmission | Dual-Range |
| Type | unsynchronized |
| Gears | 8 forward and 2 reverse |
| Clutch | mechanical dry disc |
MECHANICAL
The J.I. Case 730 features a 4x2 drive system, providing good traction on flat terrain but limiting performance in challenging conditions compared to 4WD models. The optional power steering enhances maneuverability, particularly in tight spaces, while the open operator station offers visibility but may lack protection from the elements. Its 8-speed torque converter and 8-speed unsynchronized transmission enable versatility for various agricultural tasks, though operators might find the unsynchronized shifts less smooth during intensive workload scenarios.
| Chassis | 4x2 2WD |
| Steering | manual/power optional |
| Cab | Open operator station |
| Transmissions | 8-speed torque converter 8-speed unsynchronized |
CAPACITY
| Fuel | 31gal / 117.3L |
| Hydraulic system | 17gal / 64.3L |
HYDRAULICS
| Type | open center |
| Capacity | 17gal / 64.3L |
| Valves | 4 |
| Pump flow | 15.5gpm / 58.7lpm |
TRACTOR HITCH
| Rear Type | II |
| Rear lift | 1,350lbs / 612kg |
| Type | Case Eagle Hitch |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000 |
J.I. CASE 730 TIRES
The J.I. Case 730 tractor features an Ag front tire specification of 6.00-16 and a rear tire specification of 14.9-30, which provides a favorable balance of stability and traction in various agricultural terrains. The larger rear tires enhance flotation and reduce soil compaction, which is crucial for crop preservation. However, this setup may present challenges in tight maneuverability compared to smaller tire configurations in confined spaces.
| Ag front | 6.00-16 |
| Ag rear | 14.9-30 |
DIMENSIONS
| Wheelbase | 102inches / 259cm |
| Length | 156inches / 396cm |
| Width | 88inches / 223cm |
| Height | 84inches / 213cm |
| Weight | 7,000lbs / 3175kg |
| Ground clearance | 15inches / 38cm |
DIMENSIONS & TIRES
The J.I. Case 730 tractor has a compact wheelbase of 102 inches, which enhances maneuverability in tight farming scenarios but may limit stability on uneven terrain. Weighing 7,000 lbs, it provides substantial traction for tillage and pulling operations, although it might pose challenges in transportability. The tire specifications, with narrower front tires and wider rear tires, are advantageous for optimizing weight distribution and minimizing soil compaction during fieldwork.
| Wheelbase | 102inches / 259cm |
| Weight | 7,000lbs / 3175kg |
| Front tire | 6.00-16 |
| Rear tire | 14.9-30 |
730 SERIAL NUMBERS
| Location | Plate on instrument panel |
| 1960 | 8160001 |
| 1961 | 8168801 |
| 1962 | 8190001 |
| 1963 | 9208001 |
| 1964 | 8229001 |
| 1965 | 8253501 |
| 1966 | 8279001 |
| 1967 | 8306501 |
| 1968 | 8332101 |
| 1969 | 8356251 |
ELECTRICAL
| Ground | negative |
| Charging system | generator |
| Charging amps | 20 |
| Batteries | 2 |
| Battery CCA | 70 |
| Battery volts | 6 |