Husqvarna Viking Mega Quilter, Руководство пользователя

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35
Maintenance and troubleshooting
Troubleshooting
The needle thread breaks
• The needle thread is not threaded
properly (page 19-21).
• The needle thread tension is too tight
(page 23).
• The needle is bent or blunt (page 14).
• The needle is incorrectly inserted (page
14).
• The needle thread and the bobbin thread
are not set under the presser foot when
starting sewing (page 22).
• The threads were not pulled to the rear
after sewing (page 22).
• The thread is too heavy or too À ne for
the needle (page 5).
The bobbin thread breaks
• The bobbin thread is not threaded
properly in the bobbin holder (page 17).
• Lint has collected in the bobbin holder
(page 32).
• The bobbin is damaged and does not
turn smoothly (change the bobbin).
The needle breaks
• The needle is incorrectly inserted, bent
or blunt (page 14).
• The needle clamp screw is loose (page
14).
• The threads were not pulled to the rear
after sewing (page 22).
• The needle is too À ne for the fabric
being used (page 5).
• The needle and/or threads are not
suitable for the work being sewn (page 5).
The machine skips stitches
• The needle is incorrectly inserted, bent
or blunt (page 14).
• The needle thread is not threaded
properly (page 19-21).
• A poor quality needle is used (change the
needle)
• The needle thread tension is too tight
(page 23).
• The needle and/or fabrics are not suitable
for the work being sewn (page 5).
Seam puckering
• The needle thread is not threaded
properly (page 19-21).
• The needle is too heavy for the fabric
being sewn (page 5).
• The stitch length is too long for the
fabric (page 12).
• The needle thread tension is too tight
(page 23).
The cloth is not fed smoothly
• The feed dog is packed with lint (page
32).
• The stitches are too À ne (page 12).
Loops on the seams
• The needle thread tension is too loose
(page 23).
• The needle is too thick or too À ne for
the fabric (page 5).
The machine does not sew or run
• The machine is not plugged in (page 9).
• Thread has been caught in the hook race
(page 32).