# Loosening a Screw

By setting the loosening parameters, you can control the behavior of loosening for a specific tightening program. Specify the loosening speed and torque to ensure that the screw is unscrewed as desired, so that the screw thread does not break, regardless of what tool you use.

A loosening is considered OK when Run-up torque is reached. However, the screw will probably not have been fully run up by then. The screw should now be able to be turned using a low torque and the speed can be increased. The operator will need to proceed with the loosening until it is considered finished.

Parameter name | Description | Default value
--- | --- | ---
Detection torque | The minimum torque required to begin performing a loosening operation and produce a loosening result. | 7% ToolMaxTorque
Run-up torque | When the torque falls below Run-up torque, the loosening is considered to be OK. Note! Depending on variations in screw length, the system cannot determine when the screw has been run up completely. This is for the operator to decide. | 3.5% ToolMaxTorque
Loosening speed | Loosening speed will be attained when Run-up torque is reached. | ToolMaxSpeed