Pfaff GrandQuilter 18.8 Owner's Manual - Page 23

Quilt Top Puckers Is your backing fabric stretched too tight? While the backing fabric needs to lie flat and without wrinkles, stretching it too tight can make the quilt top pucker. After stitching and releasing the backing fabric the top will pucker. The top tension is too tight. Adjust the tension disc small turns counter clockwise. Repeat until stitch quality is good. Stitches are Skipped Skipped stitches leave needle holes without thread while large and small stitches in regulated mode means the encoders are not picking-up the signal of your movements because of lint or thread stopping or slowing the reading. First, check to see that your machine is threaded correctly. Look at the check spring, does the thread lay in the check spring? When properly threaded the check spring will move up and down as the machine is stitching and the thread is flowing freely. Check the needle. Be sure it is all the way up into the shaft and the scarf is toward the back. If it has been used for some time, replace the needle. A blunt needle will make a popping sound as it penetrates the quilt sandwich. Machine Drags Making it Difficult to Move Check to make sure the quilt on the take up bar is not dragging on the bed of the machine. A finger tip distance between the take up bar and the bed of the machine is all that is necessary. Elevating the take up bar too high can cause loopies on the back. Look for lint or thread that might be snagging as you move the machine. Difficult to Control the Movement of the Machine Check for lint or other debris on the track and bars. Sometimes the smallest pieces of thread create the biggest headaches. 23