| 摘要 |
A post driver includes a frame and a mast connected to the frame in such a way the position of the mast can be altered. The mast, which may be telescopic and carries a hammer 116, may be shifted backwards or sideways and may also be tiltable (fig 1), thereby enabling it to be adjusted for proper alignment with a post 125. This is achieved by a number of hydraulic cylinder assemblies 122, 124. The frame may rest on a number of hydraulic legs (102, fig 1) which include skids (108, fig 1). The hydraulic controls for the driver may be protected with a cage (fig 16) and the driver can include portions (118, fig 1) for receiving pallet forks, facilitating transport of the driver. |
