Programming
Service Instructions 867 - 04.0 - 10/2019 111
21.1 Activating the tensioner lift
The factory setting for the machine is such that the tensioner will remain 
closed during a seam regardless of whether the sewing feet are lifted or 
not. 
Opening the tensioner while the sewing feet are lifted and the seam is 
not yet completed makes sense, for instance, when you DO NOT sew 
corners.
To activate the tensioner lift:
1. Press the   and   buttons at the same time.
 You are on the technician level.
2. Use the buttons under the display to select the parameter t0900.
3. Use +/- to enter the desired value ( Parameter list 867).
4. Confirm with  .
NOTICE
Production of loose stitches!
When sewing corners with active tensioner lift and simultaneous 
sewing foot lift, the machine will produce a loose stitch.
Do not activate the pneumatic tensioner lift when lifting the sewing 
feet unless the sewing feet are NOT lifted during the seam.