Bernina 700 Manual page 95

Attachment
Fault
Upper thread breaks
Lower thread breaks
Needle breaks
Display is inactive
The needle and the stitch
plate do not match
Speed too low
96
Cause
Incorrect needle/thread
combination.
Upper thread is too tight.
Incorrectly threaded.
Poor quality thread.
The stitch plate or the hook tip is
damaged.
The thread is caught in the area
of the thread take-up lever.
1
The bobbin case is damaged.
The stitch hole in the stitch plate
is damaged.
Needle blunt or bent.
The needle is incorrectly inserted.
Knotted thread.
Incorrect calibrating data.
The eco-function is active.
The selected needle and stitch
plate cannot be used in
combination.
Unfavorable room temperature.
Settings in the Setup Program.
0371485.0.04_2016-05_Manual_B700
Repair
> Match the needle with the thread size.
> Reduce the upper thread tension.
> Rethread.
> Use quality thread.
> Contact the nearest specialized BERNINA dealer to have
the damages repaired.
> Replace the stitch plate.
> Remove the screw (1) on the headframe with the
angular Torx wrench.
> Pull the headframe at the bottom slighty forward.
> Flip the headframe upwards a bit and remove it.
> Remove the thread remnants.
> Attach the headframe and tighten the screw.
> Replace the bobbin case.
> Contact the nearest specialized BERNINA dealer to have
the damages repaired.
> Replace the stitch plate.
> Replace the needle.
> 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.
> Use quality thread.
> Switch the machine off.
> Switch the machine on and simultaneously press the
buttons «SET» and «Center of the embroidery motif»
and keep pressed.
> Re-calibrate the display.
> Touch the icon «eco-Mode».
> Replace the needle.
> Replace the stitch plate.
> Place the machine in a warm room one hour before use.
> Adjust the sewing speed in the Setup Program.
> Adjust the slide.