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BERNINA
Part
Description
Bobbin Winder When winding a bobbin the
bobbin is held securely on
the spindle and rotates
quietly at full speed without
hesitations.
The bobbin fills evenly, the
winding action stops
automatically when the
bobbin is full.
Needle position
The needle can be moved
knob
and locked into 5 different
needle positions.
The knob is spring loaded
towards the left when using
the automatic button hole
mechanism
For the use by Authorized BERNINA Dealers Only
Service Procedure 700-900.doc
Servicing Procedure for Series 700-900
Possible
Repair
Malfunction
Instructions
• Winder slippage
Model 830 the rubber
winder wheel may
• Loud winder
have crystallized.
• No winding action
Replace and adjust the
• Uneven winding
wheel.
• Over filling/under
For even winding and
filling
correct filling amount
follow machine
specific adjustments.
• The selected position
Check internal locking
mechanism. 730/830
is not held secure.
• Buttonhole beads are
pistons for spring
action. 930 check if
not in the correct
the lock spring is
position.
attached.
Select buttonhole
position #5 and check
if the needle-
positioning knob is
spring loaded towards
the left hand side.
Page 19/32
Picture
730 BOBBIN
WINDER
INSTRUCTION IN
PART 2.11
2003 Bernina of America Inc
730
830
Last Revised 5/11/2005
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