1. When the new drill pipe is used for the first time, the protective grease on the drill pipe thread should be wiped clean, the inner wall of the drill pipe should be cleaned with air or water, and then the threaded oil should be applied to the inner and outer threads of the drill pipe to prevent damage to the thread or velcro.

　　2. When drilling, try to ensure that the drill hole is vertical to avoid the premature wear of the drill pipe caused by the deflection or bending of the drill hole.

　　3. The starter rod should be connected between the impactor and the first drill pipe, otherwise, the first drill pipe will be damaged prematurely.

　　4. When connecting the drill pipe, remember to apply thread oil to the thread of the drill pipe and tighten the drill pipe; if it is not tightened, the threaded connection will become loose, causing the threads to grind each other and the crest to become sharp, resulting in damage to the thread or a sticky phenomenon; If it is not tightened, the step of the female buckle is not pressed tightly, resulting in air leakage and, in severe cases, fatigue fracture of the thread root of the male joint.

　　5. When connecting the drill pipe, the male buckle cannot collide with the shoulder and thread of the female buckle, and ensure that the male and female joints are centered, and cannot be forcibly buckled when they are not aligned. Ensure the coaxiality between the main shaft of the drilling rig powerhead and the connecting drill pipe.

　　6. When it is difficult to break the drill pipe, a small hammer can be used to gently vibrate the threaded part of the joint. It is strictly forbidden to use a sledgehammer to hit the joint violently, which will cause deformation and damage to the thread.

　　7. If the drill pipe thread is found to be damaged in a small area (about 1-2 buckles, the buckle length is 10mm), it should be repaired with a file in time before use.