VETRON 5000 Service Manual page 84

03. ADJUSTMENT
35. SEWING AND FUNCTIONS CHECK
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NOTE:
» The bobbin case opener timing is set to 285° in chapter 03.17. Check and adjust in
accordance with the note if any adjustment is necessary.
B
» The thread needs to be guided unhindered around the bobbin case when bypassing the
upper thread around the hook. At the moment of the thread passage
of the bobbin capsule has to be open to such an extent that it can be passed without hinde-
rance. The thread has to bypass position
» Setting the bobbin case opener too small can lead to a poor stitch pattern.
Setting the bobbin case opener too big leads to a high noise emission.
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VETRON 5000 - FLAT BED MACHINE - SERVICE MANUAL
C
without hindering aswell.
A
B
A
the retaining finger
C
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