Notes on the use of horizontal directional drilling rigs

According to the torque of the horizontal directional drilling rig, the push-pull force, and the small radius of curvature allowed, select the drill pipe with the appropriate specification and model. Before installing the drill pipe, clean the pin and box, and apply thread oil (the thread oil cannot be replaced by other waste oil, inferior pressure oil) to prevent premature wear or damage of the pin and box. Be careful not to forcibly buckle up. When buckling, the male buckle cannot impact the shoulder and thread of the female buckle, and ensure the centering of the male and female joints. Ensure the coaxiality of the shackle of the drilling rig and the main shaft of the power head.

Avoid mixing drill pipes with different button types, even if they are not produced by the same manufacturer (because the technical parameters, processing methods, props and mechanical equipment used by each manufacturer of drill pipes are different, and the tolerances and close distances of drill pipes processed must be Different) Drill pipes with a large difference between new and old, and with a large difference in wear degree should not be mixed to avoid the danger of drilling. Use qualified zinc-based thread grease, butter is not suitable for dry use as thread thread oil.