The semi-trailer linkage support leg is a type of semi-trailer support device, mainly used to support the parking of the semi-trailer after the tractor is detached from the semi-trailer. The design of this type of leg allows for simultaneous operation on both sides, meaning that both legs can be controlled to rise and fall simultaneously through a single joystick.
The characteristic of a linked leg is its lifting efficiency. Compared to a single moving leg, the lifting efficiency of a linked leg is doubled. However, due to the characteristic of linked legs, it is mainly suitable for flat road surfaces. On uneven road surfaces, it may be necessary to use cushion blocks or other auxiliary equipment to ensure the basic level of the support surface.
When using linked legs, it is also necessary to pay attention to some operating precautions. Firstly, fast or slow gears can be used when unloaded, but for safety reasons during heavy loads, slow gears must be used. Secondly, when retracting the legs, be sure to retract the joystick back to its original position to prevent the phenomenon of "kicking" during walking, which may damage the legs.
Overall, the semi-trailer linkage leg not only improves lifting efficiency, but also has certain requirements for the usage environment. Therefore, when choosing to use linked legs, it is necessary to consider the specific road conditions and usage needs.
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