Bernina artista 200 Embroidery Instruction Manual Page 249

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247Embroidery Support – Trouble Shooting
Titel 1Trouble Shooting
Prevention and Remedy of Failures
Note the following advice to recognize the causes of most of the operation failures in the
embroidery computer that might occur.
Check First Whether:
upper and lower threads are threaded correctly
the needle is inserted correctly - flat part of the
shank to the back
the needle is the correct size (see Needle/Thread
Chart on pages 17-19)
the embroidery computer is clean - remove any
thread lint
the hook race is clean
bits of thread are trapped between the tension
disks and under the bobbin case spring
Upper Thread Breaks
upper thread tension is too tight
use of low quality needle. It is best to buy
needles in a BERNINA store
needle has been inserted incorrectly. The flat
part of the shank must be to the back
needle is blunt or bent
use of poor quality thread, thread with knots,
thread too old or dried out
use appropriate spool disc
use net for even unwinding of thread (pull over
upper thread spool)
stitch plate hole or hook tip is damaged: take
the embroidery computer to an authorized
BERNINA dealer
reduce embroidery speed
Lower Thread Breaks
lower thread tension is too tight
lower thread is trapped in the embroidery
bobbin case. Replace bobbin
needle is blunt or bent
the stitch plate hole has been damaged by the
needle. It must be polished by a BERNINA
Technician
Skipped Stitches
incorrect needle used. Use only 130/705H needle
system
needle is bent or blunt or not correctly inserted.
Push all the way to the top when inserting
low quality, badly polished needle used
Needle Breaks
needle clamp screw is too loose
defective stitch plate
Unsatisfactory Stitch Formation
remnants of thread between tension disks: pull
folded thin fabric (use the fold, not an outer
edge) back and forth between the tension disks
to clean the left and right side of the thread
tension
remove any remnants of thread from under the
bobbin case spring
adjust thread tension
used wrong or no stabilizer at all
incorrectly threaded - check upper and lower
thread
when embroidering, thread pigtail tensioner with
lower thread
use appropriate spool disc
clean and oil hook (use original oiler only. See
Cleaning and Lubricating on page 179)
Embroidery Computer Fails to Run or Runs
Slowly
plug not fully inserted
power switch in «0» (off) position
embroidery computer has been standing in a
cold room
Defective Sewing Light
take the embroidery computer to an authorized
BERNINA dealer
Lower Thread Indicator Sensor
bobbin cover is not closed
not activated in the Setup Program
remove any thread lint and remnants
from the bobbin case
Upper Thread Indicator Sensor
not activated in the Setup Program
s245-250_e 19.4.2004 16:42 Uhr Seite 247
030794.71.04_0401_a200_EN
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