The position of the mechanical bolt in operation should be perpendicular to the axis of the batch screw perpendicular to the surface of the locking screw. The lock under the screw is vertical, it can tilt swing. Otherwise, the screw will lock, slide, blow out tighten. Therefore, we have sorted out the related problems solutions. Sliding occurs, i.e. the screw is locked in place, but it will follow the batch. Rotate, close to block objects. The main reason is that the lock is released in time for too long; if the hand is released in time after locking, the time is too long; if the torque is too large, the sliding line will be tightened after locking in place.

The solution is to lock in place, timely release replace the screw with the appropriate diameter; the phenomenon of screw head peeling flower is that the screw is coated with black paint. The paint on the surface has worn away, revealing silver white metal. The main reason is that the bit head is perpendicular to the screw, grinding. Flower metal finish (grinding); the solution can be vertical head screw; locking is in place, that is, after the air drill is locked, it will automatically stop rotate slowly, but the screw is fully locked, leaving a gap. The main reason is that it has stopped after unlocking. Time is too short. The torque is too small. The solution can increase the torque make sure the screws lock in place, after which you can let go.