1. Excavate hard clay
The clay has high hardness and low water content. The focus of dredger operation is to control the brake pressure and speed of the cutter, and the single-layer dredging surface should be thin.
2. Excavation of sand
The sandy soil is relatively loose and the particles are relatively coarse. The thickness, speed and forward step distance of the dredger during excavation should not be too large to prevent blockage.
3. Excavation of hard plastic clay
In order to prevent the clods from sticking to the reamer, the reamer should be raised frequently for inspection during the work.
4. Excavation of quicksand
The distance and speed of the dredger can be increased appropriately.
The machine should be inspected before starting the dredger to see whether the machine system is normal and whether the fuel is sufficient. Then start the front and rear diesel engines of the dredger to make the machine work. Pay attention to the movement of the machine boom when dredging, and adjust the direction of the boom flexibly according to the amount of sand dug up. If dredging is difficult, move the dredger back and forth, and avoid hard objects such as big rocks. So as not to damage the dredger. When the dredger is not in use, put it in a safe place and tie it up to prevent it from being washed away by water. Also take care of it to avoid theft.
