1 No-load experiment should be carried out before the operation, and the operation can only be carried out after the work is normal.

2 The lifting point should coincide with the vertical line of the center of gravity of the heavy object during operation, and it is necessary to lift it straight. When the hanging object is walking, the height of the hanging object must exceed the height of the object on the ground by more than 0.5 meters, and it is forbidden to pass by people. Hanging objects shall not stay in the air for a long time.

3 After the operation is over, the electric hoist should be parked in a safe position, the hook should be raised, and the power supply should be blocked.