JUKI AMS-210ENHL2210/TF10S, Instruction Manual

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[Regarding H type thread clamp unit]
Change the set value of memory switch U069 in accordance with the thickness of needle thread. The
set value has been set to 1 : H type thin thread at the time of delivery. Commendable value is Set value
: 1 for thread count #50 to #8, Set value : 2 for thread count #20 to #5, and Set value : 3 for thread
count #5 to #2. (The value will change in accordance with the kind and thickness of the actual thread
and the kinds of materials to be sewn.) Set the value by adjusting to the state of needle thread on the
wrong side of materials.
In addition, it is possible to select the thread clamp position by means of memory switch U070. When
using thick thread of thread count #5 to #2, and rolling-in or tucking at the start of sewing occurs, set the
set value to 1 : Rear and use the machine.
(1) When with thread clamp (motion), use the sewing machine after adjusting the needle thread length
at the start of sewing to 40 to 50 mm. When the needle thread length is too long, the needle thread
end held with the needle thread clamp may be rolled in the seams.
40 to 50mm
1) In case of with the needle thread clamp, the
standard of the length of needle thread is 40 to
50 mm.
• To prevent the thread from slipping off from the
needle eyelet at the beginning of sewing or to
prevent stitch skipping from the
fi rst stitch
→
Adjust the length of needle thread longer
within the range.
• To prevent stitch skipping within the second to
tenth stitches from the beginning of sewing
→
Adjust the length of needle thread shorter
within the range
1)
3)
(2) When the thread clamp is used, and bobbin thread at the sewing start appears on the right side of
material, reduce thread tension at the sewing start (2 to 3 stitches) and bobbin thread becomes less
conspicuous.
[Example of setting]
Tension of 1 to 2 stitches at the sewing start is “20” when sewing tension setting is “35”.
* For setting of tension at the start of sewing, see of
"I-4-1.(6) Adjusting the thread tension" p.13.
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
"III-1-6. Needle thread clamp device" p.117.
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.