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Handling method for automatic sinking of crane boom

Update Date: 2017/7/9 comes from: jyrcpr.cn Author: clicks:


??? Xugong truck crane There are few cases of sinking truck mounted crane. However, the sinking of boom may cause serious use accidents. Therefore, in the use of truck mounted crane, it is necessary to check and maintain the boom regularly, so as to stop the phenomenon of automatic sinking of boom. At the same time, if the boom is sinking, it is necessary to analyze the reasons for the first time:

1, due to excessive wear and tear of the oil seal of the hydraulic cylinder piston, the sealing is not strict, resulting in internal leakage.

2, as the balance valve is closed to produce internal leakage, the hydraulic hose of hose joint keeps flowing out. The automatic retracting failure of the boom is caused by the tight valve, which is caused by internal leakage.

In understanding Xugong truck crane After the sinking of the boom, what we need to do is troubleshooting. If the hydraulic oil continues to flow out of the hose joint when the boom is lowered, the automatic retracting failure of the boom is caused by the tight sealing valve and the internal leakage. If there is no hydraulic oil flowing out of the hose connection of the truck, the failure of the boom automatically retracts due to the fact that the oil seal of the hydraulic cylinder is loose and closed, resulting in internal leakage. The piston oil seal of the hydraulic cylinder should be replaced and replaced.

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