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Operation
Extreme
settings
Operating Instructions 610/630 - 00.0 - 05/2014
Correct setting
The correct setting is dependent on the stitch length and the seam
type ( 5.7.1 Thread types and stitch formation, pg. 32).
In particular for extreme settings, it must be ensured that the looper
thread quantity is not too large:
• Elastic seam (largest possible thread quantity) with very short
stitch length
• Considerable enlargement of the stitch length for elastic
seams
Faults due to excessively large looper thread quantity
• Missed stitches
• Looper thread jumps off the thread pick-up disk.
Fig. 14: Adjusting the looper thread take-up
(1) – Thread down-holder
(2) – Thread down-holder:
Lower bar
(3) – Looper thread take-up:
Hole for thread guide
(4) – Looper thread take-up edge:
Scale reading point
(5) – Looper thread take-up
(6) – Fastening screw
35
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