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The needle is not positioned
properly
•
Position the needle properly to the needle bar. Inspect the
position of the needle to make sure the needle is at the 6 o’clock
position. When you stand directly in front of the needle, facing
the front (bobbin case side) of the machine, you will see the
entire needle eye directly facing you. This is the 6 o’clock position.
•
Make sure (a) the needle is installed all the way into the needle
bar, and (b) the long groove in the needle is toward the front, and
(c) the scarf, the scooped out part of the back of the needle, is
toward the back of the machine.
Needle Breaks
Corrective Measure(s)
The needle is bent or not
installed properly
• Replace the needle. Make sure that the needle is pushed into the
needle bar clamp until it can go no further. Visually check that it is
up to the top of the sight hole above the needle bar clamp screw.
If the needle isn’t installed properly, it can cause damage in the
bobbin area and throat plate.
The needle hits the throat plate
•
Correctly position the needle, throat plate, or hopping foot.
Replace with a new needle.
Stitches Are Puckered
Corrective Measure(s)
The tension is not balanced
•
Balance the tension of the top thread after ensuring the bobbin
tension is adjusted correctly. For more information about
adjusting tension, see Bobbin and Bobbin Tension
in the
Using Your Machine section of this manual.
Needle too large for
quilting thread
•
Replace the needle with a size better suited for the thread.
Poor Stitch Quality
Corrective Measure(s)
The tension is not balanced
•
Balance the tension of the top thread after ensuring the bobbin
tension is adjusted correctly. For more information about
adjusting tension, see Bobbin and Bobbin Tension
in the
Using Your Machine section of this manual.
Bobbin case is damaged,
corroded, dirty, etc.
• Since thread slides over the surface of the bobbin case at a high
speed, make sure the case is free of any lint or foreign matter
that could impede thread passage through the machine.
Moving the machine too fast
for needle speed selected
(Manual mode)
•
Synchronize machine movement and needle speed to get your
desired stitch length. Elongated stitches are an indication of
moving the machine too fast for the current speed.
