BO CHUCK & C

BO CHUCK & C 3760 0020 79 Acting as the direct connection to the drill steel, the chuck is responsible for transmitting all the power from the drifter's rotation motor and piston. It securely holds the shank adapter, ensuring that torque and impact energy are efficiently transferred into the rock. The internal profile is designed to match the shank, providing a solid grip for effective drilling.

Wear on the chuck directly impacts drilling productivity and the service life of other components. When the internal splines wear, the shank adapter can move excessively, leading to poor energy transfer and damage to both the drifter and the drill steel. This misalignment can also cause premature failure of the front head bushings and seals, resulting in more extensive and costly repairs.

Check the chuck for visible wear or cracks during every drill steel change. A loose-fitting shank adapter is a clear sign that the chuck needs replacement. To ensure correct alignment and maximize service life, it is good practice to replace the corresponding chuck bushing at the same time.