1. Faults manifested at the fracture opening:

(1) Sandblasting hose One or more cracks are found, the cracks are neat, and other parts are kept in good condition. The main reason for this phenomenon is that the system pressure is too high, which exceeds the pressure resistance of the hose.

(2) Sandblasting Torsion occurs at the broken part of the hose. The reason for this phenomenon is Sandblasting The rubber hose is excessively twisted during installation or use.

2. Pay attention to the following items when using hydraulic sandblasting hose:

（1） Sandblasting The rubber hose shall be arranged to avoid heat source as far as possible and away from the performance of engine exhaust pipe. If necessary, sleeve or protective screen can be used to prevent the hose from being heated and deteriorated.

（2） Sandblasting Where the rubber hoses must cross or may rub with the mechanical surface during operation, hose clamps or springs and other protective devices shall be used to avoid Sandblasting The outer layer of the hose is damaged.

（3） Sandblasting When the hose must be bent, the bending radius should not be too small, and should be greater than 9 times the outer diameter. Sandblasting There should be a straight line section greater than 2 times the outer diameter of the pipe at the joint between the rubber hose and the joint.

（4） Sandblasting When installing the hose, avoid being in a tensioned state. Even if there is no relative movement at both ends of the hose, keep the hose loose. The tensioned hose will expand under pressure and reduce its strength.

(5) Do not twist the hose during installation. If the hose is slightly twisted, its strength may be reduced and the connector may be loosened. During assembly, the connector should be tightened on the hose instead of the hose.

（6） Sandblasting Rubber hose If it is configured on key components, it is recommended to conduct regular inspection or replacement.