– 16 –
(1) When wth thread clamp (moton), use the sewng machne after adjustng the needle thread length
at the start of sewng to 40 to 50 mm. When the needle thread length s too long, the needle thread
end held wth the needle thread clamp may be rolled n the seams.
40 to 50mm
1) In case of wth the needle thread clamp, the
standard of the length of needle thread s 40 to
50 mm.
• To prevent the thread from slppng off from the
needle eyelet at the begnnng of sewng or to
prevent stitch skipping from the first stitch
/
Adjust the length of needle thread longer
wthn the range.
• To prevent sttch skppng wthn the second to
tenth sttches from the begnnng of sewng
/
Adjust the length of needle thread shorter
wthn the range
1)
3)
(2) When the thread clamp s used, and bobbn thread at the sewng start appears on the rght sde of
materal, reduce thread tenson at the sewng start (2 to 3 sttches) and bobbn thread becomes less
conspcuous.
[Example of settng]
Tenson of 1 to 2 sttches at the sewng start s “20” when sewng tenson settng s “35”.
* For settng of tenson at the start of sewng, see of
"
@
-2-8.(1) Changing the thread tension value" p.35
.
1. Thread at the start of sewing may be rolled in case of some patterns. When thread is
rolled in even after performing adjustment of (1) or (2), use the sewing machine with
thread clamp OFF.
2. Thread clamp failure may occur in the state that thread waste is jammed in the thread
clamp device. Remove the thread waste referring to
"
#
-1-6. Needle thread clamp device" p.106
.
When needle thread is excessively long at the time of using the thick thread, the end of
needle thread held with the needle thread clamp is rolled in the seams, and slip of position
of material may occur or needle breakage may be caused.
