| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a working machine which is fitted with a working attachment such as a grapple, and which enables a relief pressure to be easily changed without an interruption of operations, when the relief pressure of a drive circuit for the attachment is set variable. <P>SOLUTION: The two relief pressures, that is, the first and second relief pressures can be set as the relief pressures of the drive circuits 16 and 17 of a cylinder 8 for the grapple by a monitoring device 24. Either of the first and second relief pressures can be selected by relief pressure selecting buttons 23 provided in control levers 27 arranged on the right and left lateral sides of a driver seat 26, respectively. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
