Pressure limit switch circuit is cut off, stop, and then closing, the hook can only decrease.

压下限位开关，切断电路停车，再合闸时，吊钩只能下降。

youdao

Pressure limit switch circuit is cut off, stop, and then closing, the hook can only decrease.

压下限位开关，切断电路停车，再合闸时，吊钩只能下降。

youdao