Pfaff creative 4874 Instruction Manual page 118

3-thread fold, rolled hem
Program 17
If all the thread tensions are set correctly,
the upper looper thread (red) loops
completely around the edge of the fabric.
The needle thread (green) is too loose.
Adjust the green thread tension to a
higher setting.
The upper looper thread (red) only
partially loops round the edge of the
fabric.
Adjust the red thread tension to a lower
setting and/or change the yellow thread
tension to a higher setting.
The lower looper (yellow) appears on the
upper side of the fabric.
Adjust the yellow thread tension to a
higher setting and/or change the red
thread tension to a lower setting.
7-12