1. First, close the water inlet valve of the high-pressure jet grouting reaming anchor cable, and open the drainage valve to discharge the residual water.
2. Secondly, take out the filter inside the high-pressure jet grouting reaming anchor cable, and wash the inside of the high-pressure jet grouting reaming anchor cable with clean water to completely remove the internal deposits and impurities.
3. Then, remove the nozzle, check whether all parts are normal, and repair them in time if any abnormality is found.
4. Finally, reinstall the nozzle and filter, open the water inlet valve and the water outlet valve, and clean the discharged water to ensure that there is no residual water inside the high-pressure jet grouting reaming anchor cable.