Bernina Record 830 Anleitungen und Tipps - Seite 3
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Tips for upper thread tension
• Practical stitches = increased upper thread tension (higher number) • Decorative
stitches and embroidery motifs = reduced upper thread tension (lower number)
• Always adjust the upper thread tension according to the thread features
• Increase the upper thread tension if necessary when using easily sliding and
break resistant threads, e.g. cotton, polyester • Reduce the upper thread tension if
necesssary when using threads which are prone to break easily, e.g. rayon/viscose,
metallic and polyamid • Adjust the upper thread tension when using a
different weight bobbin thread
Always adjust the upper thread tension according to the fabric
• Heavy weight/firmer fabrics require an increased upper thread tension
• Light weight/softer fabrics require a reduced upper thread tension
Tips for lower thread tension
If many loops or irregularities occur in the stitch formation:
1. Make sure that the thread is threaded correctly for sewing or embroidering.
2. Please confirm the lower thread tension is set correctly.
The basic settings are indicated in the bobbin door of the sewing computer as well
as in the instruction manual see chapter «Thread tension».
Always adjust the lower thread tension according to the thread
features
For slippery and strong threads: Shift the lug at the lower thread
tension 1-2 points to the right (increased lower thread tension).
With threads which are prone to break easily: Shift the lug at the lower thread
tension 1-2 points to the left (reduced lower thread tension).
Tips for silicone oil (thread lubrication)
Silicone oil is a lubricant which dissipates without trace. The thread slippage
through the needle improves and thread breakages can be reduced.
• Use BERNINA thread lubricator
Lubricating is not necessary: With easily sliding, tensile threads with smooth
surface, e.g. polyester, cotton, rayon up to half a year old
Lubricating is recommended: With threads which are prone to break having a
rough surface, e.g. metallic threads, rayon older than half a year
Attention: When threads are lubricated using silicone, it may be necessary to
increase the upper thread tension.
Tips for cleaning and maintenance
• Oil the hook after having used the content of 3 to 4 bobbins. The machine
screen will display a reminder • Increasing noise of the motor and/or irregular
stitch formation can also be an indication that oiling is necessary
• Remove any lint from the hook and the bobbin area, then remove the stitch plate
• See instruction manual chapter «Maintenance/Cleaning»
• Use the straight stitch plate when embroidering • Always use a suitable stabi-
lizer. This ensures proper stability of the fabric in the hoop and prevents the em-
broidery from distorting • Use a water-soluble stabilizer on the right side of pile or
longfiber fabrics to prevent the threads from sinking into the pile too deeply • See
manual instruction chapter «Preparation/Stabilizer»
Tips for embroidering speed
• High speed when using strong threads and simple embroidery designs • Reduce
speed when using fine threads or with demanding embroidery projects
Further information
Further information, various animation and videos can be found at:
www.bernina8series.com/US/testdrive, please read the instruction manual or
watch our Trainings-DVDs.
Are you looking for some more useful
accessories by BERNINA?
Please visit: www.bernina.com
Always keep your sewing computer up to date
See instruction manual chapter «Setup-Program/Update»
Updates are available at: www.bernina.com/downloads.