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PROBLEM
PROBABLE CAUSE
CORRECTION'
Monograms and buttonholes not
Machine was not allowed to complete the
Hold down the foot control until the machine has
identical.
last few stitches.
stopped.
Incorrect size needle.
Choose correct size needle for thread and fabric.
Bent or blunt needle.
Insert new needle.
Skipping Stitches
Incorrect setting of needle.
Reset needle.
Tight upper thread tension.
Loosen upper thread tension,
Light pressure on presser foot.
Increase pressure on presser foot.
Starting to stitch too fast.
Start to stitch at a medium speed.
Improper threading.
Rethread machine.
Tight upper thread tension.
Loosen upper thread tension.
Breaking Upper Thread
Incorrect size needle.
Choose correct size needle for thread and fabric.
Sharp eye in needle.
Insert new needle.
Nicks or burrs at hole of needle plate,
Replace needle plate, or polish off burrs completely.
Breaking Bobbin Thread
Improper bobbin case threading.
Check bobbin case threading.
Lint in bobbin case or shuttle.
Clean bobbin case and shuttle.
Darning plate in place.
Remove darning plate.
Light pressure on presser foot.
Increase pressure on presser foot.
Fabric not Moving
Thread knotted under fabric.
Place both threads back under presser foot before beginning
to stitch.
Push-pull clutch is disengaged.
Push in the clutch.
Machine Jamming Knocking Noise
Thread caught in shuttle.
Disassemble and clean shuttle.
Fabric is pulling and distorting the
1.
Keep the fabric from falling off the edges of the sewing
automatic fabric feed.
surface.
2.
Bunch the fabric slightly all around the needle
(see illustration on page 67).
Buttonholes are not identical
Fabric is too thick near the seam and the
1. Use the B Foot in these instances.
in length and shape.
buttonholes.
2. Start the buttonhole so that you sew toward the edge of
the fabric.
3.
Put standard writing paper (not tissue paper) under the
garment to aid fabric feed (for woven and stretch fabrics).
4.
Do not use the Memory function.
Sew each button individually.
88
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