ST31
| Ground Pressure | 5.8 psi 0.4 bar |
| Breakout force - tilt | 5,300,097 lbf 23,576 kN |
| Breakout force - lift | 5,000 lbf 22,241 N |
| Tractive Effort max. at 100% effective force | 9,873.6 lbf 43,920 N |
| Bucket Roll Back | 1.6 s 1.6 s |
| Bucket Roll Out | 2.1 s 2.1 s |
| Lift Arm Raise | 3.7 s 3.7 s |
| Lift arm lower | 2.5 s 2.5 s |
| Travel speed stage 1 | 6.5 m/H 10.5 km/h |
| Travel speed stage 2 | 9.7 m/H 15.6 km/h |
| Operating weight | 8,240.9 lb 3,738 kg |
| Cylinder | 4 |
| Cylinder capacity | 151.5 in³ 2,482 cm³ |
| Oil filling max. | 2.6 gal US 9.8 l |
| Operating power | 74.3 hp 55.4 kW |
| Operating Engine speed | 2,750 1/min 2,750 1/min |
| Engine type | Diesel engine |
| Engine Manufacturer | Kohler |
| Flow rate | 19.8 gal/mi 75 l/min |
| Flow rate max. | 29.9 gal/mi 113 l/min |
| Auxiliary hydraulics relief pressure | 3,494.5 psi 241 bar |
| Hydraulic fluid volume | 42.3 qt US 40 l |
| Fuel Tank capacity | 35 gal US 132.5 l |
| Tip Load | 6,199.4 lb 2,812 kg |
| Rated Operating Capacity at 50% Tip Load | 3,099.7 lb 1,406 kg |
| Rated Operating Capacity at 35% Tip Load | 2,169.4 lb 984 kg |
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