| 摘要 |
The present invention provides a lifting system for an excavator, comprising a movable linkage (e.g. a chain), an actuator adapted to be coupled to the linkage for displacement of the linkage thereof, an abutment member configured to limit the displacement of the linkage and a retaining assembly arranged to releasably retain a hook attached to the linkage. The actuator is operable to reversibly displace the linkage between a first position in which the hook is free from the assembly and a second position in which the hook is retained by the assembly. As a result, the linkage may be safely stowed to avoid harm or injury to an operative associated with the lifting system. |
