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Troubleshooting
71
2020-09 EN 5220105.00A.04
9
Troubleshooting
Fault
Cause
Solution
Uneven stitch formation
Upper thread too tight or too
loose.
> Adjust the upper thread tension.
Needle blunt or bent.
> Replace the needle, make sure that a new BERNINA
quality needle is used.
Poor quality needle.
> Use a new BERNINA quality needle.
Poor quality thread.
> Use quality thread.
Incorrect needle/thread
combination.
> Match the needle with the thread size.
Incorrectly threaded.
> Rethread the thread.
The fabric has been pulled.
> Feed the fabric evenly.
Dust or thread remnants under
the tension spring of the bobbin
case.
> Clean the bobbin case (see page 68).
Skipped stitches
Incorrect needle.
> Use the needle system 130/705H.
Needle blunt or bent.
> Replace the needle.
Poor quality needle.
> Use a new BERNINA quality needle.
The needle is incorrectly inserted.
> Insert the needle with the flat side to the back as far up
as it will go into the needle holder and tighten the
screw.
Incorrect needle point.
> Match the needle point to the texture of the material.
Faulty stitching
Thread remnants between the
thread tension discs.
> Fold a piece of thin material and slide the folded edge
(not the raw edges) between the thread tension discs.
Incorrectly threaded.
> Rethread.
Thread is caught in the hook.
> Remove the upper thread and the bobbin case, turn the
handwheel backwards and forwards by hand and
remove the thread remnants.
Incorrect needle/thread
combination.
> Check the needle/thread combination.
Содержание B05 Crafter
Страница 1: ...User manual...
Страница 2: ......
Страница 76: ...Index 76 2020 09 EN 5220105 00A 04 Using a spool net 17 Utility stitches 39 W Winding the bobbin thread 28...
Страница 77: ......
Страница 78: ...BERNINA International AG Steckborn CH www bernina com www bernette com b05CRAFTER 2020 09 EN 5220105 00A 04...