| 摘要 |
An implement including pivotally interconnected and wheel supported main and outrigger frames which can be raised and lowered on the wheels by a plurality of hydraulic cylinders, there being a single cylinder connected between each outrigger frame and its respective wheel and a pair of cylinders connected between the main frame and its wheels with the single cylinders and one of the pair of cylinders being hydraulically connected in series and the pair of cylinders being hydraulically connected in parallel. By employing the pair of parallel cylinders, lift capacity is increased since one of the pair of cylinders operates to raise the main frame while the other of the pair of parallel cylinders passes fluid pressure onto the single cylinders to raise the outrigger frames. |
