1. ToolsTalk MT
2. Troubleshooting
3. Graph gets a dip and loses torque in the middle of the tightening.

Graph gets a dip and loses torque in the middle of the tightening.

Cause: This is caused by the fact that the angle step, prior to the torque step, is starting to tighten the screw. The “dip” happens when the tool goes from a very high speed to a lower speed while building torque.

Solution: The angle step used as rundown should always end before the screw finds seating.

To avoid this type of tightenings make sure to lower the target angle so it doesn’t exceeds the seating point.

This tightening is the same as above except that the angle step has a lower target angle and stops before the screw finds seating. Now the dip is gone.