| 摘要 |
A method of a hand held torque delivering power tool for tightening a screw joint up to a predetermined target torque level, the method including applying a tightening torque to the screw joint during a tightening phase via a snug torque level, indicating during the tightening phase a torque growth characteristic, interrupting the torque application on the screw joint upon arrival at a target torque level to prevent further rotation of the screw joint, and resuming the torque application via a declination ramp at a declining rate after the target torque level is reached. The resumed torque application is declined at a rate corresponding to the indicated torque growth characteristic to obtain an ergonomically favorable torque reaction characteristic in the power tool. |
