Martelli Bella Longarm Series, Руководство пользователя

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Correcting Common Issues
Needle Thread Breaks Corrective Measure
• Hesitating too long at one point in
the pattern
• Improper needle/hook relationship
• Damage or burr at the needle hole in the
needle plate or any other place along the
thread path
• Wrong type of needle
• Other possible causes:
• Change the needle
• Move more quickly so stitches don’t over-
lap or build up. When starting the machine,
begin moving immediately. Sewing in one
place too long will cause the thread to break
• Timing of the machine is improper.
Consult a repair technician
• If the thread is shredding at the needle
plate, check for burrs or jagged edges. Gen-
tly rub with metal cloth to remove the sharp
edge.
• Use needles recommended, Martelli. Us-
ing the wrong needle with a smaller shank
diameter causes many problems. This may
cause skipped stitches because the needle is
positioned too far away from the hook point.
It can also cause the needle to hit the hook,
breaking the needle.
• The needle is too close to the hook, which
causes friction and a possible collision of the
hook point and the needle.
• Needle plate damage.
• Hook damage.
• Broken needle inside needle bar clamp,
preventing the needle from insertion to the
top of the clamp.
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