7 material differences · fewer than 12
Tractor oneHürlimann D-6001951–1954No measured PTO figureTractor twoJ.I. Case 7311960–1969No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1951–1954; 1960–1969). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
7 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | D-600 | 731 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 68.3 hp | 57.9 hp | +18% D-600 |
| Engine declared | Hürlimann D-300 | — | — |
| Displacement declared | 5.52 L | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 18.6 mph · 30 km/h | +50% 731 |
| Clutch declared | Pedal operated dry single plate clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | — | 15.6 gpm · 59.0 L/min | — |
| Pressure declared | 498 psi · 34 bar | — | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 8,488 lb · 3,850 kg | 6,956 lb · 3,155 kg | +22% D-600 |
| Wheelbase declared | — | 101.7 in · 2,584 mm | — |
| Length declared | 143.7 in · 3,650 mm | 143.4 in · 3,642 mm | — |
| Width declared | 74.8 in · 1,900 mm | 85.2 in · 2,165 mm | +14% 731 |
| Ground clearance declared | 16.9 in · 430 mm | 20.0 in · 508 mm | +18% 731 |
| Turning radius, braked declared | 10.7 ft · 3.25 m | 11.9 ft · 3.63 m | +12% 731 |
| Fuel tank declared | 116.2 qt · 110 L | 69.2 qt · 65.5 L | +68% D-600 |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
Hürlimann D-600 sources
- Source: Traktorenlexikon, “Hürlimann D 600”
- Source: Traktorenlexikon, “Hürlimann D 300”
J.I. Case 731 sources
- Source: Traktorenlexikon, “Case 731”