Before installing the spring chuck ? The spring chuck must be loaded into the lock nut and the lock nut fitted with the spring chuck must be gently screwed onto the shank, adapter or spindle. Be sure to clean the spring chuck and lock nut threaded parts, positioning surfaces, and cones.
During the installation of the chuck and lock nut? Do the chuck and lock nut have to be tilted at an angle? Then gently insert it into the lock slot of the lock nut.
Note: 1. Pay attention to the spring chuck must clamp the tool? So that the knife does not fly out and hurt people in high-speed rotation? There is a safety incident. 2. It is strictly forbidden to use the chuck when the tool is not loaded? Lock nut to prevent deformation and brittle chipping of the spring chuck.