| 摘要 |
Executive equipment of excavator has beam, handle, non-rotary jaw and hydro-controlled jaw, this is connected to hinge-lever mechanism and hydro-cylinder of its drive. The non-rotary jaw is made of separate links, those at the outer side are connected to each other in hinged way, and at the inner side are connected by cable that goes through the body of the links in free way and is fixed to the hinge-lever mechanism.
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