After couplingquickdisconnectcoupling, pull on hose to insure that a proper connection is made before releasing hose.
当连接好快拆接口后，在放开软管前，应试拉软管以确保正确牢固。
2
Clean the quickdisconnectcoupling before the connection of hydraulic tubes to avoid sand or dust entering into the system and polluting the hydraulic oil.