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SUSPECTED PROBLEM
PUCKERING
SKIPPING
STITCHES
BREAKING UPPER
THREAD
BREAKING BOBBIN
THREAD
FABRIC NOT
MOVING
!
J
t
i
PROBABLE CAUSE
Incorrect thread tension{s),
Light pressure on presser foot.
Using two different sizes or kinds
of thread.
Sent or blunt needle.
Loose presser foot_.
Fabric too sheer or too soft.
Incorrect size needle.
Certain knits and synthetics.
Bent or blunt, needle.
incorrect setting of needle,
Tight upper thread tension,
Light pressure on presser foot.
Starting to stitch too fast.
Improper threading.
Tight upper thread tension.
Incorrect size needle.
Sharp eye m needle.
Nicks or burrs at need|epiate opening,
Improper bobbin case threading.
Lint in bobbin case or shuttle.
Darning plate attached.
Light pressure on presser foot.
Thread knotted under fabric,
POSSIBLY EASY CORRECTION
Reset thread tension(s),
Increase pressure on presser foot.
Upper thread and bobbin thread should be same
size and kind.
Insert new needle.
Reset presser foot.
Use underlay of tissue paper.
Choose correct size needle for thread and fabric.
Use "Q NEEDLE .... and "Q FOOT "T"
insert new needle.
Reset needle.
Loosen upper thread tension.
Increase pressure on presser foot.
Start to stitch at a medium speed.
Rethread machine.
Loosen upper thread tension.
Choose correct size needle for thread and fabric,
Insert new needle.
Replace needleplate, or polish off burrs completely.
Check bobbin case threading.
Clean bobbin case and shuttle.
Remove darning ptate.
Increase pressure on presser foot.
Place both threads back under presser foot before
beginning to stitch.
MACHINE JAMMING, Thread caught in shuttle. Disassemble and ctean shuttle,
Damaged needle. Replace needle.
KNOCKING NOISE Bent needle plate. Replace needle plate,
Push m clutch,
MACHINE DOES
NOT SEW
Hand wheel not returned to
stitching position,
Power cord not connected,
Power!light switch off.
Check plug.
Push to on position.
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