1. Regularly check the water and gas pipelines, and ensure all bolts and nuts on the drilling rig are secure.
2. Regularly check the lubricating oil level of the pneumatic motor.
3. When the working face is submerged in water, use a large-diameter drill bit to drill the hole, inserting the drill rod so that it protrudes 1-2 meters above the water surface to prevent mud and rock cuttings from falling into the hole.
4. The drilling rig must not be reversed during drilling operations to prevent the drill rod from falling into the hole;
5. When the drilling rig is to be stopped for a short period, a small amount of compressed air should be supplied to prevent mud and sand from entering the drill rig's impactor. If the drilling rig is to be stopped for an extended period, the impactor should be raised 1-2 meters above the bottom of the hole and secured;
6. During operation, pay attention to the sound of the impactor and the operation of the gearbox. If any abnormal sounds or phenomena are found, stop the machine immediately and conduct a timely inspection;
7. When adding new drill rods, ensure the borehole is kept clean to prevent mud and sand from entering the drill rig's impactor and damaging the drill rig parts;
8. At the end of each work shift, clean the surface of the drilling rig promptly. Except for normal handling, large-scale disassembly on the work surface is strictly prohibited;
9. Use grease to lubricate the drill rod joints and the gearbox.