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Errors and faults
116
Fault
Cause
Solution
Upper thread breaks
Incorrect needle/thread
combination.
> Match the needle with the thread size.
Upper thread is too tight.
> Reduce the upper thread tension.
Incorrectly threaded.
> Rethread.
Poor quality thread.
> Use quality thread.
The stitch plate or the hook tip is
damaged.
> Contact the nearest specialized BERNINA dealer to have
the damages repaired.
> Replace the stitch plate.
The thread is caught in the area
of the Thread Take-up Lever.
1
> Slide the service cover (1) to the left, then remove the
service cover.
> Remove the thread remnants.
> Guide the 4 knobs of the service cover into the provided
recesses and slide the service cover to the right.
Lower thread breaks
The bobbin case is damaged.
> Replace the bobbin case.
The stitch hole in the Stitch Plate
damaged.
> Contact the nearest specialized BERNINA dealer to have
the damages repaired.
> Replace the stitch plate.
Needle blunt or bent.
> Replace the needle.
Needle breaks
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.
The fabric has been pulled.
> Feed the fabric evenly.
Thick fabric has been pushed.
> Use a suitable presser foot, e. g. Jeans Foot #8, for thick
fabric.
> Use the height compensating tool when sewing over a
thick seam.
Knotted thread.
> Use quality thread.
Stitch width not adjustable
The selected needle and stitch
plate cannot be used in
combination.
> Replace the needle.
> Replace the stitch plate.
Содержание 475 QE
Страница 1: ...BERNINA 475 QE User Manual...
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Страница 122: ...Overview stitch patterns 122 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344...
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