Brief description of the four scenarios that occur after a fault in the outriggers of a truck crane

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The legs are important components of a truck crane that help maintain the balance of the machine and ensure stable operation during tasks. In practical use, failures in these legs can lead to four possible situations, thereby affecting the safety of operations: 1. If the chassis of the truck crane appears to sink significantly during operation, it is very likely that there is a fault with one of the leg components, or that the pads under the legs or the foundation itself is not solid enough, resulting in an imbalance in the crane； 2. Faults in the internal structure of the leg or the detachment of components causes the leg seat to drop automatically as the leg extends ； 3. When attempting to open the legs from the cab of an automotive crane, pressing the switch does not result in any response from the legs; this may indicate a fault in the internal structure of the legs ； 4. If it is found that the extension of the legs of a truck crane is too slow during operation, it can be inferred that there are foreign objects blocking certain structural components inside the legs.