Case
J.I. Case 731
The J.I. Case 731 is a row-crop tractor produced from 1960 to 1969 as part of the 730 Series. It features a 4.4L 4-cylinder liquid-cooled diesel engine with 267 cubic inches displacement, rated at 48.33 hp drawbar and 56.50 hp PTO tested power. The tractor offers two transmission options: an 8-speed torque converter (Case-o-matic) and an 8-speed unsynchronized (Dual-Range) with mechanical dry disc clutch. It has a wheelbase of 83 inches and an operating weight of 7,095 lbs. The 731 includes features such as two-wheel drive, manual steering with power optional, differential disc brakes, and an open operator station. Hydraulics are open center with one valve. The tractor hitch is a Case Eagle Hitch with a rear Type II hitch. The rear PTO is independent with 540 and 1000 RPM options. Attachments include a 295 front-end loader with 3000 lbs breakout force and a 40-inch bucket. The 731 was originally priced at $6,900 in 1969.
Power62 hp[P]
Founded1960 - 1969
Model731
Technical Specifications
Detailed specifications and technical data for J.I. Case 731
Power
| Plows | 5 |
|---|---|
| PTO (tested) | 56.50 hp (42.1 kW) |
| Drawbar (tested) | 48.33 hp (36.0 kW) |
Engine
| Type | J.I. Case 4.4L 4-cyl diesel |
|---|---|
| Cooling | liquid-cooled |
| Fuel tank | 22 gal (83.3 L) |
| Rated RPM | 1700 (Dual-Range), 1900 (Case-o-Matic) |
| Air cleaner | oil bath |
| Bore/Stroke | 4.125x5.00 inches (105 x 127 mm) |
| Compression | 15.2:1 |
| Displacement | 267 ci (4.4 L) |
| Starter volts | 12 |
| Coolant capacity | 7.5 qts (7.1 L) |
Variants
| 730 | standard-front diesel |
|---|---|
| 731 | row-crop diesel |
| 732 | Western Special diesel |
| 733 | high-clearance diesel |
| 734 | orchard diesel |
| 740 | standard-front gas |
| 741 | row-crop gas |
| 742 | Western Special gas |
| 743 | high-clearance gas |
| 744 | orchard gas |
Hydraulics
| Type | open center |
|---|---|
| Valves | 1 |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Differential disc brakes |
| Steering | manual, power optional |
| Operator station | Open operator station |
Production
| Series | 730 Series |
|---|---|
| Category | Row-Crop tractor |
| Original price | $6,900 (1969) |
| Years produced | 1960 - 1969 |
Attachments
| Dump angle | 75° |
|---|---|
| Bucket width | 40 inches (101 cm) |
| Boom cylinder | 2.5 inches (6 cm) |
| Height at pin | 108 inches (274 cm) |
| Loader weight | 1209 lbs (548 kg) |
| Bucket cylinder | 2.25 inches (5 cm) |
| Front-end loader | 295 Loader |
| Loader breakout force | 3000 lbs (1360 kg) |
Transmission
| Options | 8-speed torque converter, 8-speed unsynchronized |
|---|---|
| Dual-Range | Typeunsynchronized Gears8 forward and 2 reverse Clutchmechanical dry disc |
| Case-o-matic | Typetorque converter Gears8 forward and 2 reverse |
Tractor hitch
| Type | Case Eagle Hitch |
|---|---|
| Rear Type | II |
Serial Numbers
| 1960 | 8160001 |
|---|---|
| 1961 | 8168801 |
| 1962 | 8190001 |
| 1963 | 8208001 |
| 1964 | 8229001 |
| 1965 | 8253501 |
| 1966 | 8279001 |
| 1967 | 8306501 |
| 1968 | 8332101 |
| 1969 | 8356251 |
| Location | Plate on instrument panel |
Dimensions & Tires
| Rear tire | 13.6-38 |
|---|---|
| Wheelbase | 83 inches (210 cm) |
| Front tire | 6.00-16 |
| Ballasted weight | 9,525 lbs (4320 kg) |
| Operating weight | 7,095 lbs (3218 kg) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540, 1000 |
Related Models
J.I. Case 730Model730
J.I. Case 732Model732
J.I. Case 733Model733
J.I. Case 734Model734
J.I. Case 740Model740
J.I. Case 741Model741
J.I. Case 742Model742
J.I. Case 743Model743
J.I. Case 744Model744