Setup Quick Guide
This quick guide uses the residual torque method for parameter settings. There are other methods, although they are not covered here.
During the setup of parameter settings the torque installed may be higher or lower than presented on the POWER FOCUS display screen. The Residual Torque Correlation Factor (RTCF) affects the presented value, make sure to check the residual torque with an ST Wrench or similar if the joint settings are done with parts in ongoing production.
Set the RTCF to 100%.
Always use the intended sockets and extensions (preferably guided sockets and extensions).
Always do the settings on the intended joint.
Reusing the same joint for many tightenings may affect the result.
Set the target torque to the specified torque required.
Tighten the joint with standard POWER FOCUS settings.
Check the torque.
Change the RTCF if the residual torque is a lot lower or higher than seen on the POWER FOCUS. The residual torque should correlate with the POWER FOCUS. If the deviation is small (+/-4 %) continue to the next step.
The RTCF is correlated to the settings that is performed in the next step, do not spend too much time on it in this step.
Increase or decrease power and rundown speed in order to achieve 10-20 pulses during the tightening.
If the joint is very hard or varying from hard to medium hard, adapt the settings for the hardest joint.
Increase power and/or rundown speed if the pulses are too many (>20) as it increases wear and reduces productivity.
Decrease power and/or rundown speed if the pulses are too few as this will result in poor accuracy.
If high productivity is needed, try to get at least 5-10 pulses per tightening.
A rundown speed of 2000 rpm will suffice. If the tightening speed needs to be improved, increase the rundown speed in small increments and evaluate the changes carefully. A high rundown speed reduces the tightening time, but may result in torque overshoot.
If angle monitoring is to be used, the rundown speed may need to be decreased, in order to lower the angle scatter. For more information, contact Atlas Copco Industrial Technique AB Customer Service Center, for the Public Tightening Accuracy Reports for pulse tools.
Tighten the joint with the new settings. Change the settings if needed and redo the tightening.
Do a number of tightenings to check and change the RTCF, see Power Focus 6000 Configuration manual.
Tighten a number of joints with the new RTCF to see if required results are met. If the tool does not perform as intended, redo steps 6 through 9.
Tighten as many joints as needed to check the tool capability on the intended joint.
